The general parameters of the force sensor are the technical parameters of the sensor, including the most important range, sensitivity, accuracy index, excitation voltage, input and output resistance, wiring definition and so on. For a user who has never used a force transducer, how to do post signal processing?

In general, the principle of strain type sensor is wheatstone bridge. From the wiring definition on the factory calibration certificate of the sensor, it can be known how the bridge needs to supply power and how much output corresponds to the full scale.

For example, the parameters of a sensor are as follows:

Range: 1000N

Sensitivity: 2.0mV/V

Output definition: incentive positive: red line; Incentive negative: black line; Signal positive: green line; Signal negative: white line.

Maximum supply voltage: 15Vdc (10Vdc recommended)

First, we make a simple calculation. If the power supply to the sensor is 10V, then its corresponding full-scale output is; 10V * 2.0 mV/V = 20 mV. Sensor full scale 1000N under 10V power supply, if the green and white output signal is 20mV, it means that the load cell itself is forced 1000N, which is the linear correspondence between the output signal of the sensor and the force value.

Now we're going to use the force transducer, how do we use it?

First we need to power the sensors. According to the recommended 10V, we supply power to the red and black wires, and the red wire is 10V and the black wire is 0V. A DC regulated power supply is provided here, which is recommended to be between 5V and 15V.

The problem is that in many cases, we do not have such a weak current power module. At this time, we need to introduce the signal conditioning equipment at the back end of the sensor, which generally includes signal amplifiers, instruments and acquisition boards with bridge power supply terminals.

The above situation shows the way of signal processing of the sensor back-end. There will be other problems in the use of the sensor. If necessary, we will provide various technical support and services! Welcome to consult!