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Load Cell Millivolt (mV) Output Calculator

Measurement Input Parameters
Unit [?]
Reading [?]
Full Range [?]
Millivolt Output Parameters
Supply Voltage (V) [?]
Span Sensitivity (mV/V) [?]
Zero Offset (mV) [?]
Full Range Output (mV) [?]
Output Reading (mV) [?]

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Contents

  • Related Tools
  • User Guide
    • Load Measurement Parameters
      • Unit
      • Reading
      • Full Range
    • Millivolt Output Parameters
      • Supply Voltage (V)
      • Span Sensitivity (mV/V)
      • Zero Offset (mV)
      • Full Range Output (mV)
      • Output Reading (mV)
  • Help
    • V+in and V-in meaning

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User Guide

This load cell millivolt output calculator provides a way to determine the output reading and range from the applied load, load cell range and strain gauge output characteristics. A conversion scale graphic for each load and millivolt output range combination entered is also displayed below the calculated values.

Load Measurement Parameters

Unit

Enter the unit used for measuring load, e.g. N, kgf, lbf etc…

Reading

This is the applied force measured by the load cell that you wish to convert to a millivolt output reading.

Full Range

Enter the maximum force that the load cell will measure.

Millivolt Output Parameters

Supply Voltage (V)

This is the excitation voltage in volts applied to the load cell wheatstone bridge strain gauge circuit. The millivolt output of a non-amplified load cell is linearly proportional to the excitation voltage.

Span Sensitivity (mV/V)

This is the full span output per supply volt characteristic for the load cell wheatstone bridge circuit.

Zero Offset (mV)

This is the measured output of the load cell, powered by the specified supply voltage, with no load applied.

Full Range Output (mV)

This the full range output of the load cell in millivolts, powered by the specified supply voltage, with the maximum measurable force applied.

Output Reading (mV)

This is the expected ideal load cell output in millivolts for the applied force specified.

Help

V+in and V-in meaning

I am using force sensor and I want to calculate the Vout of the force sensor.  The formula given is Vout = G·(V+in – V-in) + Vref , but I can’t find the V+in and V-in in the product datasheet?

V+in and V-in represent the voltage applied to each side of load cell strain gauge bridge circuit of the force sensor.  This is typically V+in = +10 volts and V-in = 0 volts, but it could be other positive and/or negative voltage values.  The difference between the two values is what powers the sensor and controls the amplitude of the output signal.

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