Strain gauge-based force sensors are used in a wide range of applications and provide reliable and accurate measurements in harsh environments. In order to ensure measurement accuracy and accuracy, electrical connection force sensor electrical connection skills must be correctly performed.
Strain gauge based sensor
Strain gauge-based force sensors are used in a wide range of applications and provide reliable and accurate measurements in harsh environments. In order to ensure measurement accuracy and accuracy, electrical connections must be made correctly.
The strain gage-based sensor uses a Wheatstone bridge - including four resistors. An external power supply or bridge excitation voltage Ub must be required for power supply. The excitation voltage Ub is provided by the amplifier system and is typically between 2.5 and 10 V.
INFO:
If the bridge excitation voltage exceeds the upper limit of the operating range, the strain gauges and other resistors in the force sensor will overheat and multiple parameters (sensitivity, temperature coefficient of sensitivity) will change. If not out of range, these changes are negligible during the experimental or production process.
What is the exact value of the sensor output voltage?
The exact nominal sensitivity of the sensor is available from the test certificate. In most cases, the sensitivity is 2 mV/V in the case of rated force application. The excitation voltage is typically 5 V. If the force sensor is rated for 2 mV/V, the output of the amplifier will be 10 mV when the rated force is applied to the sensor.
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