Skip to content
English
More support
Go to me-systeme.de
  • There are no suggestions because the search field is empty.

What does "characteristic value" mean?

Explanation of the term "characteristic value" in the technical data of sensors with Wheatstone bridge

The characteristic value of a sensor is the change of the output signal at 100% load (at nominal force).

The term is defined in the VDI guideline 2638: output signal at rated force, decreased by the zero signal ...

The output signal is expressed in mV per volt bridge voltage (mV/V).

Typical characteristic values of sensors are 2 mV/V, or 1 mV/V, or 0.5 mV/V, partly also 3 mV/V. A sensor with sensitivity 2 mV/V (at nominal force) therefore provides 10mV output signal with an amplifier of 5V bridge supply voltage  (as differential voltage between + bridge output and - bridge output)

The characteristic value thus corresponds to the slope of the sensor. The denominator is missing, it is in the definition "at nominal force".