| Measure.Acceleration |
To measure the acceleration or deceleration / the change in velocity of a body. (m/s²) |
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| Measure.Capacitance |
The measurement of the capacitance of a device. |
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| Measure.Conductance |
The process of measuring the Electrical Conductance of a device. |
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| Measure.Conductivity |
The process of measuring the Electrical Conductivity of a Solution or a device. |
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| Measure.Current.AC |
The process measures the AC Current sourced by a device without knowing the shape of the signal. Values can only be tested in RMS because the shape of the signal is unknown. |
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| Measure.Current.AC.Sinewave |
The process measures the AC Current sourced by a device without knowing the shape of the signal is a sinewave. Knowing the shape of the waveform allows the system to make conversions from RMS to PeakToPeak. |
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| Measure.Current.AC.Squarewave |
The process measures the Squarewave Current sourced by a device with the assumption it is generating an AC Squarewave. Knowing the shape of the waveform allows the system to make conversions from RMS to PeakToPeak. |
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| Measure.Current.AC.Trianglewave |
The process measures the Alternating Current sourced by a device with the assumption it is generating an AC Trianglewave. Knowing the shape of the waveform allows the system to make conversions from RMS to PeakToPeak. |
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| Measure.Current.DC |
The process measures the Direct Current (or DC) sourced by a device. |
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| Measure.Density-Mass.Gas |
Test Process that measures a gas’s density as defined by the amount of mass present in a specified volume of gas at a given temperature and pressure. Gases are extremely responsive to temperature and pressure, causing their densities to change rather quickly. Measuring the density of gas the Ideal Gas Law (P*V = nRT) must be taken into account. ** Includes non-uniformity |
Details |
| Measure.Density-Mass.Liquid |
Test Process that measures a liquid’s density as defined by the amount of mass present in a specified volume of liquid at a given temperature. Temperature affects density, as does the pressure to the extent that the liquid compresses. In, liquids deemed sufficiently incompressible, the volume does not depend on pressure. ** Includes non-uniformity and voids (if any) |
Details |
| Measure.Density-Mass.Solid |
Test Process that measures a solid’s density as defined by the amount of mass present in a specified volume temperature. Temperature affects density as solids expand and contract according to their temperature coefficients. ** Includes voids and non-uniformity |
Details |
| Measure.Force |
Test Process that measures the Force as defined as mass times acceleration (F = m * a). The formula describes a free mass or the net force on any mass. Dead-weight force measurements depend on true mass, specific location’s influences, such as local gravity, air buoyancy, and material density are often needed. Equal but opposite forces counteract to cancel any net motion or acceleration, but result in a deformation of the objects which can be measured. This test process is typically used to calibrate devices like primary deadweight standards and transfer standards. When measuring the mass of a physical object See Measure.Mass.True |
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| Measure.Frequency |
The process of measuring the frequency of a signal. |
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| Measure.Frequency.FrequencyModulation.Rate |
The process of measuring the Demodulated Rate of a Frequency Modulated (FM) Signal. |
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| Measure.Frequency.AmplitudeModulation.Rate |
The process of measuring the demodulated frequency rate of an Amplitude Modulate (AM) signal. |
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| Measure.Frequency.Arbitrary.Cardiograph |
The process of generating an arbitrary Cardiograph waveform the Capacitance of a device. |
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| Measure.Frequency.FrequencyModulation.Deviation |
This process measures the Deviation Frequency of a Frequency Modulated (FM) signal. The deviation is used to describe the maximum difference between an FM modulated frequency and the nominal carrier frequency |
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| Measure.Frequency.PhaseModulation.Rate |
The process of measuring the demodulated frequency rate of a phase-modulated RF signal. |
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| Measure.Impedance |
The process of measuring the impedance of a device. |
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| Measure.Inductance |
The process of measuring the Inductance of a device. |
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| Measure.Length |
Length is the straight-line distance between two points. It can be measured in one, two, or three dimensions with 6 degrees of freedom. Length measurements are made from Point 1 to Point 2 based on the reference definition of an ISO or ASME standard datum specifically defining the orientation and references for each of the x,y,z points. The start and end points allow defining and distinguishing direction if required; otherwise, they are interchangeable. |
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| Measure.Length.Circumference |
Length Circumference is the length measured around the inside or outside of a round or circular object. |
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| Measure.Length.Diameter |
Length Diameter is the edge-to-edge straight-line distance passing through the center of a circular object. It can measure the inside open space or outside diameter of the object. |
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| Measure.Length.Form.Flatness |
The minimum normal (perpendicular) distance between two parallel planes that fully contain a surface. Commonly, the two parallel planes may be constructed from the surface itself (in which the highest point and lowest point of the surface would be tangent to the two parallel planes), but a drawing may specify how the parallel planes should be constructed. Reference https://www.gdandtbasics.com/flatness/ Dimensioning and Tolerancing, Engineering Product Definition and Related Documentation Practices, ASME Y14.5-2018 https://www.asme.org/codes-standards/find-codes-standards/y14-5-dimensioning-tolerancing |
Details |
| Measure.Length.Form.Parallelism |
Parallelism is a fairly common symbol that requires the referenced surface or line to be parallel to a datum surface or line. Parallelism can reference a 2D line, but more commonly it describes the orientation of one surface plane parallel to another datum plane. |
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| Measure.Length.Form.Perpendicularity |
Perpendicularity is a fairly common symbol that requires the referenced surface or line to be perpendicular or 90° from a datum surface or line. Perpendicularity can reference a 2D line, but more commonly it describes the orientation of one surface plane perpendicular to another datum plane. |
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| Measure.Length.Form.Roughness |
Roughness is the measure of the finer surface irregularities in the surface texture (texture comprises roughness, waviness, and form), either along a profile (line) or across a surface. Form is a long spatial wavelength, or the overall “shape” of the surface. Waviness is a shorter spatial wavelength, such as an undulation in the shape. Roughness is the shortest spatial wavelength of the surface irregularities. These surface irregularities are results of the manufacturing process employed to create the surface. Roughness is measured, using a numerical parameter, which is a description of the overall roughness of the surface. Roughness average (Ra), sometimes previously known as arithmetic average (AA) or (CLA), both now deprecated,, is the rated as then the is a parameter, calculated as the arithmetic mean deviation of the surface valleys and peaks. Units used are typically in micrometers or microinches. Reference https://www.engineersedge.com/surface_finish.htm https://en.wikipedia.org/wiki/Surface_roughness ASME B46.1.2019 |
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| Measure.Length.Form.Roundness |
Roundness is the feature described as deviation (radial error) from true roundness (mathematically, a circle). |
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| Measure.Length.Form.Sphericity |
Sphericity is a measure of how closely the shape of an object resembles that of a perfect sphere. For example, the sphericity of the balls inside a ball bearing determines the quality of the bearing, such as the load it can bear or the speed at which it can turn without failing. Sphericity is a specific example of a compactness measure of a shape. Defined by Wadell in 1935,[1] the sphericity, {\displaystyle \Psi }\Psi , of a particle is the ratio of the surface area of a sphere with the same volume as the given particle to the surface area of the particle: where {\displaystyle V_{p}}V_p is volume of the particle and {\displaystyle A_{p}}A_p is the surface area of the particle. The sphericity of a sphere is unity by definition and, by the isoperimetric inequality, any particle which is not a sphere will have sphericity less than 1. Sphericity applies in three dimensions; its analogue in two dimensions, such as the cross sectional circles along a cylindrical object such as a shaft, is called roundness. |
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| Measure.Length.Form.Straightness.Axis |
The minimum diameter of a cylinder that fully contains a specified line. |
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| Measure.Length.Form.Straightness.Surface |
The minimum normal (perpendicular) distance between two parallel planes that fully contain a surface along a specified line. |
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| Measure.Length.Radius |
Length Radius commonly thought of as half the diameter of a full circle, the radius is the distance from the center point to the edge of an arc or partial circle. |
Details |
| Measure.Mass.Conventional |
Test Process that measures the conventional value of the result of weighing a body in air equals the mass of a standard that balances this body under the following conventionally chosen conditions: ambient temperature 20 °C air density 1.2 mg/cm³ mass density 8.000 g/cm³ Conventional mass has the same unit as mass (the kilogram), because the multiplication of a mass by a dimensionless quantity defines its values. Labs typically measure mass and correct the results from actual to conventional conditions. “Apparent Mass versus 8.0 g/cm³” formerly equated to conventional mass in the United States. References: NISTIR 6969 (2019) https://www.nist.gov/publications/nistir-6969-selected-laboratory-and-measurement-practices-and-procedures-support-1 OIML D28 (2004) https://www.oiml.org/en/files/pdf_d/d028-e04.pdf NIST Handbook 44: https://www.nist.gov/pml/weights-and-measures/publications/nist-handbooks/other-nist-handbooks/other-nist-handbooks-2-3 |
Details |
| Measure.Mass.True |
Test Process that measures the quantity of matter which a body contains, as measured by its acceleration under a given force or by the force exerted on it by a gravitational field. The term “mass” is always used in the strict Newtonian sense as a property intrinsic to matter. Mass is the proportionality constant between a force on a material object and its resulting acceleration. This property is sometimes referred to as “true mass”, “vacuum mass”, or “mass in a vacuum” to distinguish it from conventional [apparent] mass. The true quantity of matter represented in a vacuum with no gravitational force. |
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| Measure.Phase.PhaseModulation |
The process of measuring the phase-modulated component of a phase-modulated RF signal typically in radians. |
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| Measure.Phase.ReflectionFactor.RF |
The process of measuring the Reflection Coefficient Phase of an RF signal that is reflected back to the transmitting port. |
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| Measure.Phase.TransmissionFactor |
The process of measuring the Transmission Coefficient Phase of an RF signal that transmitted through the device under test. |
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| Measure.Phase-Noise.Sideband |
A test process of measuring power spectral density offset from the carrier as compared to the carried power. |
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| Measure.Power.Ultrasonic |
The time-average ultrasonic power emitted by an ultrasonic transducer. The measurement of ultrasonic power in liquid is based on the measurement of radition force using a gravimetric balance. The acoustic power radiated from the transducer can be related to the radiation force measured by an electronic balance. |
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| Measure.Power.RF.Sinewave |
A test process that measures the RF power of a signal. It can be either direct or monitored by an RF Power measurement device |
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| Measure.Pressure.Differential.Static |
This test process measures the pneumatic differential pressure between two points generated by the unit under test. The resulting pressure difference will return in the unit of measure as defined in the test point’s data. Note: Although the unit of measure can be read from the test point’s unit of measure it is good practice to pass the Unit of Measure to the test process as a parameter to avoid confusion when synchronizing data between systems. https://en.wikipedia.org/wiki/Pressure_measurement https://www.nxp.com/docs/en/application-note/AN1573.pdf?&srch=1 |
Details |
| Measure.Pressure.Hydraulic.Static |
This test process measures the hydraulic pressure generated by the unit under test. The resulting measured will be in the unit of measure as defined in the test point’s data. Note: Although the unit of measure can be read from the test point’s unit of measure it is good practice to pass the Unit of Measure to the test process as a parameter to avoid confusion when synchronizing data between systems. https://en.wikipedia.org/wiki/Pressure_measurement https://www.nxp.com/docs/en/application-note/AN1573.pdf?&srch=1 |
Details |
| Measure.Pressure.Pneumatic.Absolute.Static |
This test process measures the pneumatic absolute pressure generated by the unit under test. The resulting measured will be in the unit of measure as defined in the test point’s data. Note: Although the unit of measure can be read from the test point’s unit of measure it is good practice to pass the Unit of Measure to the test process as a parameter to avoid confusion when synchronizing data between systems. https://en.wikipedia.org/wiki/Pressure_measurement https://www.nxp.com/docs/en/application-note/AN1573.pdf?&srch=1 |
Details |
| Measure.Pressure.Pneumatic.Gage.Static |
This test process measures the pneumatic gage (or relative pressure) generated by the unit under test. The resulting measured will be in the unit of measure as defined in the test point’s data. Note: Although the unit of measure can be read from the test point’s unit of measure it is good practice to pass the Unit of Measure to the test process as a parameter to avoid confusion when synchronizing data between systems. https://en.wikipedia.org/wiki/Pressure_measurement https://www.nxp.com/docs/en/application-note/AN1573.pdf?&srch=1 |
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| Measure.Ratio.AmplitudeModulation |
The process of measuring the Percent of Modulation of an Amplitude Modulation (AM) Signal. |
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| Measure.Ratio.Density-Mass |
Test Process that measures the relative density, or specific gravity, is the ratio of the density (mass of a unit volume) of a substance to the density of a given reference material. Specific gravity for liquids is nearly always measured with respect to water at its densest (at 4 °C or 39.2 °F); for gases, air at room temperature (20 °C or 68 °F) is the reference. The term “relative density” is often preferred in scientific usage. It is defined as a ratio of the density of a particular substance with that of water. |
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| Measure.Ratio.Humidity.Relative |
Measuring the ratio of the water vapor’s partial pressure divided by the saturation water vapor pressure allowed at a given temperature. |
Details |
| Measure.Ratio.Humidity.Specific |
Measuring the ratio of the mass of water vapor to the total mass of the dry air. The gravimetric method of calibration determines the specific humidity, with pressure and temperature having no effect on the masses. Also referred to as moisture content |
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| Measure.Ratio.Power.ReflectionFactor.RF |
The process of measuring the Reflection Coefficient magnitude of an RF signal that is reflected back to the transmitting port. |
Details |
| Measure.Ratio.Power.RF.Sinewave.Delta.Frequency |
A test process that measures the difference between 2 sinusoidal RF signals at different frequencies while keeping the power levels constant. The two measured values are compared, the results can be expressed as dB or percent of change. These two signals are often used when calibrating flatness of a signal generator or similar device. |
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| Measure.Ratio.Power.RF.Sinewave.Delta.Power |
A test process that measures the difference 2 sinusoidal RF signals at different power levels keeping the frequency constant. The two measured values are compared, the results can be expressed as Delta dB or percent of change. These two signals are often used when calibrating the linearity of a device. |
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| Measure.Ratio.Power.TransmissionFactor |
The process of measuring the Transmission Coefficient magnitude of an RF signal that transmitted through the device under test. It is represented as a ratio of power received over the transmitted power. |
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| Measure.Ratio.Torque |
A ratio of an instrument’s torque output to the torque applied to the input, e.g., a torque multiplier’s output torque divided by its input torque |
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| Measure.Ratio.Voltage.AC.Ripple.OnDC |
A test process that measures the ratio between the AC ripple & noise in RMS voltage measured on a DC signal then divided by the DC voltage level creating a ratio between the two voltages. |
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| Measure.Ratio.Voltage.AC.Sinewave.Delta.Frequency |
A test process that measures the difference 2 sinusoidal AC sinewave signals at different frequencies while keeping the voltage level constant. The two measured values are compared, the results can be expressed as delta volts, dB or percent of change. These two signals are often used when calibrating flatness of a device. |
Details |
| Measure.Ratio.Voltage.AC.Sinewave.Delta.Voltage |
A test process that measures the difference 2 sinusoidal AC sinewave signals at different voltage levels keeping the frequency constant. The two measured values are compared, the results can be expressed as delta volts, dB or percent of change. These two signals are often used when calibrating linearity of a device. |
Details |
| Measure.Relative-Humidity |
Measuring the ratio of the total mass of the water vapor divided by the total volume of air. This is also called volumetric humidity. |
Details |
| Measure.Resistance |
The process of measuring the resistance of a resister or other device. |
Details |
| Measure.Temperature |
The process of measuring the physical temperature of a device. |
Details |
| Measure.Temperature.Radiometric |
The process of measuring the physical temperature from a block body that will be used to generate infrared temperatures. |
Details |
| Measure.Temperature.Simulated.PRT |
The process of measuring the simulated temperature in voltage from a PRT or SPRT device. |
Details |
| Measure.Temperature.Simulated.RTD |
The process of measuring the simulated temperature in voltage from a RTD device. |
Details |
| Measure.Temperature.Simulated.Thermocouple |
The process of measuring the simulated temperature in voltage from a thermocouple device. |
Details |
| Measure.Time |
The process of measuring the current time using the Universal Time Coordinated / Coordinated Universal Time. |
Details |
| Measure.Time.Transition |
The process of measuring the pulse transition time of a square wave signal. The transition can be either be in a positive direction (Risetime) or a negative direction (Fall time). |
Details |
| Measure.Torque |
A test process measuring the accuracy of a torque wrench or other torquing device. |
Details |
| Measure.Torque.HydraulicPressure |
A test process that measures the accuracy of hydraulic torque wrenches where hydraulic pressure is applied to the torque wrench and it applies a known torque to the nut or bolt being tightened. This process usually is used to calibrate hydraulic torque wrenches producing a lookup sheet the operator can use to quickly look up the pressure required to correctly torque the bolt or nut. |
Details |
| Measure.Voltage.AC |
The process measures the AC RMS (Root-Mean-Square) voltage sourced by the UUT. Values can only be expressed in RMS because the shape of the signal is no known. |
Details |
| Measure.Voltage.AC.Ripple.OnDC |
A test process that measures the AC ripple & noise in RMS voltage measured on a DC signal. |
Details |
| Measure.Voltage.AC.Squarewave |
The process measures the AC RMS (Root-Mean-Square) voltage sourced by the UUT. Because the shape is known the values can be converted to Volts PeakToPeak. |
Details |
| Measure.Voltage.AC.Trianglewave |
The process measures the AC RMS (Root-Mean-Square) voltage sourced by the UUT. Because the shape is known the values can be converted to Volts PeakToPeak. |
Details |
| Measure.Voltage.DC |
This test process measures the DC (Direct Current) voltage sourced from the UUT. |
Details |
| Source.Acceleration |
UUT is placed in a device then the device accelerates to a known Acceleration (m/s²) Often this is tested by measuring the DC output of an accelerometer on a centrifuge. |
Details |
| Source.Acceleration.Shock |
UUT is placed in a device, normally a shaker, which then moves in a single axis direction at a known acceleration at the reference frequency. Then the amplitude is changed and the difference in sensitivity is expressed as the slope of the best fit straight line between the data plotted as output (Voltage, IEPE, Current or Charge) vs Test amplitude. Ratio output of linearity expressed as the worst-case voltage difference between the measured value and the best fit straight line divided by the full-scale output (Voltage, IEPE, Current or Charge)*100 (expressed as a percentage). |
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| Source.Acceleration.Vibration |
UUT is placed in a device, normally a shaker, then the shaker moves in a single access direction at a known acceleration and frequency. |
Details |
| Source.Capacitance |
This is the process of generating a known capacitance. |
Details |
| Source.Conductance |
The process of sourcing Electrical Conductance either from a fixed device or simulated. |
Details |
| Source.Conductivity |
The process of sourcing Electrical Conductivity either from a fixed device or simulated. |
Details |
| Source.Current |
The process of sourcing a Direct Current) voltage from a device and measuring the value on the UUT. |
Details |
| Source.Current.AC.Sinewave |
The process of sourcing a Sinusoidal Alternating Current signal. Knowing the shape of the waveform allows the system to make conversions from RMS to PeakToPeak. |
Details |
| Source.Current.AC.Squarewave |
The process of sourcing a Squarewave Alternating Current signal. Knowing the shape of the waveform allows the system to make conversions from RMS to PeakToPeak. |
Details |
| Source.Current.AC.Trianglewave |
The process of sourcing a Triangle Alternating Current signal. Knowing the shape of the waveform allows the system to make conversions from RMS to PeakToPeak. |
Details |
| Source.Density-Mass.Gas |
Test Process that sources a gas’s density as defined by the amount of mass present in a specified volume of gas at a given temperature and pressure. Gases are extremely responsive to temperature and pressure, causing their densities to change rather quickly. Measuring the density of gas the Ideal Gas Law (P*V = nRT) must be taken into account. ** Includes non-uniformity |
Details |
| Source.Density-Mass.Liquid |
Test Process that sources a liquid’s density as defined by the amount of mass present in a specified volume of liquid at a given temperature. Temperature affects density, as does the pressure to the extent that the liquid compresses. In, liquids deemed sufficiently incompressible, the volume does not depend on pressure. |
Details |
| Source.Density-Mass.Solid |
Test Process that sources a solid’s density as defined by the amount of mass present in a specified volume temperature. Temperature affects density as solids expand and contract according to their temperature coefficients. ** Includes voids and non-uniformity |
Details |
| Source.Force |
Test Process that sources a Force as defined as mass times acceleration (F = m * a). The formula describes a free mass or the net force on any mass. Dead-weight force measurements depend on true mass, specific location’s influences, such as local gravity, air buoyancy, and material density are often needed. Equal but opposite forces counteract to cancel any net motion or acceleration, but result in a deformation of the objects which can be measured. This test process is typically used to calibrate devices like load cells, multi-axis transducers, proving rings, force gauges, traction dynamometers, crane scales, bolt testers, aircraft scales, load cell washer, truck wheel load scales, miniature load cells, handheld force gauges, etc. When sourcing mass of a physical object See Source.Mass.True |
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| Source.Frequency.AC.Sinewave |
The process of generating a frequency-stable sinewave waveform. |
Details |
| Source.Frequency.AC.Squarewave |
The process of generating a frequency-stable square waveform. |
Details |
| Source.Frequency.RF.Sinewave |
The process of generating a frequency-stable RF Sinewave waveform. |
Details |
| Source.Impedance |
The process of measuring the impedance of a device. |
Details |
| Source.Inductance |
The process of sourcing electrical Inductance of a device either fixed or simulated. |
Details |
| Source.Length |
Length is the straight-line distance between two points. It can be measured in one, two, or three dimensions with 6 degrees of freedom. Length measurements are made from Point 1 to Point 2 based on the reference definition of an ISO or ASME standard datum specifically defining the orientation and references for each of the x,y,z points. The start and end points allow defining and distinguishing direction if required; otherwise, they are interchangeable |
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| Source.Length.Circumference |
Length Circumference is the length measured around the inside or outside of a round or circular object. |
Details |
| Source.Length.Diameter |
Length Diameter is the edge-to-edge straight-line distance passing through the center of a circular object. It can measure the inside open space or outside diameter of the object. |
Details |
| Source.Length.Form.Perpendicularity |
Perpendicularity is a fairly common symbol that requires the referenced surface or line to be perpendicular or 90° from a datum surface or line. Perpendicularity can reference a 2D line, but more commonly it describes the orientation of one surface plane perpendicular to another datum plane. |
Details |
| Source.Length.Form.Roundness |
Roundness is the feature described as deviation (radial error) from true roundness (mathematically, a circle). |
Details |
| Source.Length.Form.Sphericity |
Sphericity is a measure of how closely the shape of an object resembles that of a perfect sphere. For example, the sphericity of the balls inside a ball bearing determines the quality of the bearing, such as the load it can bear or the speed at which it can turn without failing. Sphericity is a specific example of a compactness measure of a shape. Defined by Wadell in 1935,[1] the sphericity, {\displaystyle \Psi }\Psi , of a particle is the ratio of the surface area of a sphere with the same volume as the given particle to the surface area of the particle: where {\displaystyle V_{p}}V_p is volume of the particle and {\displaystyle A_{p}}A_p is the surface area of the particle. The sphericity of a sphere is unity by definition and, by the isoperimetric inequality, any particle which is not a sphere will have sphericity less than 1. Sphericity applies in three dimensions; its analogue in two dimensions, such as the cross sectional circles along a cylindrical object such as a shaft, is called roundness. |
Details |
| Source.Length.Form.Straightness.Surrface |
The minimum normal (perpendicular) distance between two parallel planes that fully contain a surface along a specified line. |
Details |
| Source.Length.Radius |
Length Radius commonly thought of as half the diameter of a full circle, the radius is the distance from the center point to the edge of an arc or partial circle. |
Details |
| Source.Mass.Apparent |
None |
Details |
| Source.Mass.Conventional |
Test Process that sources a conventional value of the result of weighing a body in air equals the mass of a standard that balances this body under the following conventionally chosen conditions: ambient temperature 20 °C air density 1.2 mg/cm³ mass density 8.000 g/cm³ Conventional mass has the same unit as mass (the kilogram), because the multiplication of a mass by a dimensionless quantity defines its values. Labs typically measure mass and correct the results from actual to conventional conditions. “Apparent Mass versus 8.0 g/cm³” formerly equated to conventional mass in the United States. References: NISTIR 6969 (2019) https://www.nist.gov/publications/nistir-6969-selected-laboratory-and-measurement-practices-and-procedures-support-1 OIML D28 (2004) https://www.oiml.org/en/files/pdf_d/d028-e04.pdf NIST Handbook 44: https://www.nist.gov/pml/weights-and-measures/publications/nist-handbooks/other-nist-handbooks/other-nist-handbooks-2-3 |
Details |
| Source.Mass.True |
Test Process that sources a quantity of matter which a body contains, as measured by its acceleration under a given force or by the force exerted on it by a gravitational field. The term “mass” is always used in the strict Newtonian sense as a property intrinsic to matter. Mass is the proportionality constant between a force on a material object and its resulting acceleration. This property is sometimes referred to as “true mass”, “vacuum mass”, or “mass in a vacuum” to distinguish it from conventional [apparent] mass. The true quantity of matter represented in a vacuum with no gravitational force. |
Details |
| Source.Power.AC.Sinewave |
The process of sourcing a sinusoidal AC Power signal from a device and measuring the value on the UUT. This test process can be used by any device that measures absolute AC power. |
Details |
| Source.Power.AC.Sinewave.Simulated |
The process of sourcing a sinusoidal AC Power signal from a device where the Volts and Amps are provided on two different outputs and measured by the UUT as Watts / Power. This test process can be used by any device that measures AC power with separate voltage and current inputs. |
Details |
| Source.Power.DC |
The process of sourcing DC Power signal from a device and measuring the value on the UUT. This test process can be used by any device that measures absolute DC power. |
Details |
| Source.Power.DC.Simulated |
The process of sourcing a sinusoidal DC Power signal from a device where the Volts and Amps are provided on two different outputs and measured by the UUT as Watts / Power. This test process can be used by any device that measures AC power with separate voltage and current inputs. |
Details |
| Source.Power.Noise.Terminated |
This process connects a Termination to the input of a measurement device to reduce the noise and outside electrical signals. The test process is typically used to measure the UUT’s internal noise and offsets. And can be expressed in watts or dBm. |
Details |
| Source.Power.RF.Sinewave |
None |
Details |
| Source.Pressure.Hydraulic.Static |
This test process generates the hydraulic pressure to be measured by the unit under test. The resulting measured will be in the unit of measure as defined in the test point’s data. Note: Although the unit of measure can be read from the test point’s unit of measure it is good practice to pass the Unit of Measure to the test process as a parameter to avoid confusion when synchronizing data between systems. https://en.wikipedia.org/wiki/Pressure_measurement https://www.nxp.com/docs/en/application-note/AN1573.pdf?&srch=1 |
Details |
| Source.Pressure.Pneumatic.Absolute.Static |
This test process generates the pneumatic absolute pressure to be measured by the unit under test. The resulting measured will be in the unit of measure as defined in the test point’s data. Note: Although the unit of measure can be read from the test point’s unit of measure it is good practice to pass the Unit of Measure to the test process as a parameter to avoid confusion when synchronizing data between systems. https://en.wikipedia.org/wiki/Pressure_measurement https://www.nxp.com/docs/en/application-note/AN1573.pdf?&srch=1 |
Details |
| Source.Pressure.Pneumatic.Differential.Static |
This test process generates two pneumatic pressures with a known differential pressure between two points measured by the unit under test. The resulting differential pressure will return in the unit of measure as defined in the test point’s data. Note: Although the unit of measure can be read from the test point’s unit of measure it is good practice to pass the Unit of Measure to the test process as a parameter to avoid confusion when synchronizing data between systems. https://en.wikipedia.org/wiki/Pressure_measurement https://www.nxp.com/docs/en/application-note/AN1573.pdf?&srch=1 |
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| Source.Pressure.Pneumatic.Gage.Static |
This test process generates the pneumatic gage pressure (or relative pressure) to be measured by the unit under test. The resulting measured will be unit of measure as defined in the test point’s data. Note: Although the unit of measure can be read from the test point’s unit of measure it is good practice to pass the Unit of Measure to the test process as a parameter to avoid confusion when synchronizing data between systems. https://en.wikipedia.org/wiki/Pressure_measurement https://www.nxp.com/docs/en/application-note/AN1573.pdf?&srch=1 |
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| Source.Ratio.Acceleration.Delta.Amplitude |
UUT is placed in a device, normally a shaker, which then moves in a single axis direction at a known acceleration at the set frequency. Then the amplitude is changed and the difference in sensitivity is expressed as the slope of the best fit straight line between the data plotted as output (Voltage, IEPE, Current or Charge) vs Test amplitude. Ratio output of linearity expressed as the worst case voltage difference between the measured value and the best fit straight line divided by the full scale output (Voltage, IEPE, Current or Charge)*100 (expressed as a percentage). |
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| Source.Ratio.Acceleration.Delta.Frequency |
UUT is placed in a device, normally a shaker, which then moves in a single axis direction at a known acceleration at the reference frequency. Then the frequency is changed to the Test Frequency and difference in sensitivity is expressed as a ratio (Test Frequency / Ref Frequency). |
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| Source.Ratio.Humidity |
The generation of humidity as a ratio of the total mass of the water vapor divided by the total volume of air. This is also called volumetric humidity. |
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| Source.Ratio.Power.RF.Sinewave.Delta.Frequency |
A test process the sources 2 sinusoidal RF signals at different frequencies keeping the power levels constant between the two frequencies. The FrequencyRef signal is sourced and the voltage is measured by the UUT and saved as the Reference value. Then the signal is changed to the test Frequency signal and the test value is measured on the UUT. The two measured values are compared, the results can be expressed as dB or percent of change. These two sinusoidal signals are often used when calibrating bandwidth or frequency response on an Oscilloscope or similar device. |
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| Source.Ratio.Power.RF.Sinewave.Delte.Power |
None |
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| Source.Ratio.Voltage.AC.Sinewave.Delta.Frequency |
A test process the sources 2 sinusoidal AC Voltage signals at different frequencies keeping the voltage levels constant between the two frequencies. The FrequencyRef signal is sourced and the voltage is measured by the UUT and saved as the Reference value. Then the signal is changed to the test Frequency signal and the Test value is measured on the UUT. The two measured values are compared, the results can be expressed as Delta Volts, dB or percent of change. These two sinusoidal signals are often used when calibrating bandwidth or frequency response on an Oscilloscope or similar device. |
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| Source.Ratio.Voltage.AC.Sinewave.Delta.Voltage |
A test process that sources 2 sinusoidal AC Voltage signals at different voltage levels keeping the frequency constant. TheVoltageRef signal is sourced and the voltage is measured by the UUT and saved as the Reference value. Then the voltage level is changed and the Test value is measured on the UUT. The two measured values are compared, the results can be expressed as Delta Volts, dB or percent of change. These two sinusoidal signals are often used when calibrating linearity of a device. |
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| Source.Resistance |
The process of sourcing electrical Resistance of a device either fixed or simulated. |
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| Source.Temperature |
The process of generating a physical temperature to be measured by a device. |
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| Source.Temperature.FixedPoint |
The process of generating a physical temperature buy observing the triple point or melting point of a specified substance under a known pressure or atmosphere. Wiki - Triple Point Guide to the realization of the ITS-90 {Acetylene, Aluminum, Ammonia, Argon, Arsenic, Butane, Carbon, Carbon dioxide, Carbon monoxide, Chloroform, Coper, Deuterium, Ethane, Ethanol, Ethylene, Formic acid, Helium-4, Hexafluoroethane, Hydrogen, Hydrogen chloride, Indium, Iodine, Isobutane, Krypton, Mercury, Methane, Neon, Nitric oxide, Nitrogen, Nitrous oxide, Oxygen, Palladium, Platinum, Radon, Silver, Sulfur dioxide, Tin, Titanium, Uranium hexafluoride, Water, Xenon, Zinc} |
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| Source.Temperature.Radiometric |
The process of generating an infrared temperature on a block body to be measured by an infrared measuring device. |
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| Source.Temperature.Simulated.PRT |
The process of generating resistance simulating temperature to be measured by a PRT or SPRT temperature measuring device. |
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| Source.Temperature.Simulated.RTD |
The process of generating resistance simulating temperature to be measured by an RTD temperature measuring device. |
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| Source.Temperature.Simulated.Thermocouple |
The process of generating a simulated temperature in voltage representing a temperature to be measured by a device. |
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| Source.Time.Marker |
The process of generating a period-stable pulsed marker waveform. |
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| Source.Time.Squarewave |
The process of generating a period-stable square waveform. |
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| Source.Torque |
A test process of generating a known torque. |
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| Source.Voltage.AC.Sinewave |
The process of sourcing a sinusoidal AC Voltage signal from a device and measuring the value on the UUT. This test process can be used by any device that measures absolute AC Voltage. |
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| Source.Voltage.DC |
The process of sourcing a DC (Direct Current) voltage from a device and measuring the value on the UUT. |
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| Source.Voltage.DC.Delta.Voltage |
The process of sourcing 2 DC (Direct Current) voltage signals. First the VoltsRef signal is sourced and measured on the UUT, that value is stored as reference. Then the test Volts signal is sourced and measured on the UUT and stored as reading. The test result is returned as (reading – reference). These two voltage signals are often used when calibrating the DC gain of a device such as an Oscilloscope. |
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| Source.Voltage.Noise.Terminated |
This process connects a Termination to the input of a measurement device to measure the no signal applied voltage /noise at the inpu. The test process is typically used to measure the UUT’s internal noise and offsets. |
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| Source.Voltage.Shorted |
This process connects a Short to the input of a measurement device and measures the no signal applied Voltage. This is The test process is typically used to measure the UUT’s Zero Volts DC floor values. |
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