Physical Measurement Type Reference - FlexLogger 2021 R4 Manual - National Instruments

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Last Modified: September 27, 2021

This topic lists the physical measurement types FlexLogger supports.

The physical measurement types available in your system depend on your specific hardware configuration.

Physical Measurement Type	Compatible Sensors	Description
Voltage	Voltage	Find the difference of electric potential between two points of a circuit, using a ground-referenced or differential reference point.
Current	Current Current Shunt Voltage	Find the flow rate of an electric charge in a circuit.
Temperature	Current RTD Thermocouple Voltage	The expression of cold and heat of an environment.
Pressure	Bridge Current Current Shunt Voltage	Measure the force applied to an area by a fluid
Force	Bridge Current Current Shunt Voltage IEPE	Determine the rate of acceleration or resistance on an object against another object.
Torque	Bridge Current Current Shunt Voltage	Determine the amount of force causing an object to rotate.
Strain	Bridge	Measure an object's tension or compression as expressed by small changes in resistance.
Acceleration	Current Voltage IEPE	Determine the change of the velocity of an object as demonstrated by static forces (gravity) or dynamic forces (vibrations and movement), with the accelerations conveyed as varying voltage or current levels.
Sound Pressure	Current Voltage IEPE	Measure the pressure difference of the ambient atmospheric pressure caused by a sound wave.
Linear Position	Current Voltage LVDT	Determine the linear movement of an object on a single plane as demonstrated by change in distance.
Linear Velocity	Current Voltage Encoder Frequency Counter IEPE	Measure the velocity of an object on a single plane over a time period.
Angular Position	Current Voltage RVDT	Determine the circular movement of a rotating object as demonstrated by change in rotational distance.
Angular Velocity	Current Voltage Encoder Frequency Counter	Measure the velocity of an object's circular rotation over time.
Frequency	Frequency Counter	Count the number of cycles that occur over a period of time, specifically waveform intervals.
Pulse	Pulse Counter	Count the number of amplitude changes (pulses) in the signal.
Pulse Width	Frequency Counter	The length of one cycle over a period of time, specifically a waveform interval.
Resistance	Resistance	Measure the opposition to passage of an electric current.
Custom	All	Configure a voltage, current, or bridge sensor using custom units.

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