Torque sensors have a wide range of uses, but the data for the final measurement is twofold. Torque sensors can be used to measure torque sensor forces. This includes both dynamic and static types of sensors. The torque sensor can also be used to measure the speed. The torque sensor converts the physical changes in torque into precise electrical signals. It is mainly used in power applications. It has the advantages of long service life and high reliability.
Torque sensors are not common in our daily life, but its application is very important. At present, the mature detection method of torque sensor torque test is strain gauge technology. The dedicated torsional strain gage is glued on the elastic shaft to be measured with the strain gage, and a strain bridge is formed. If the strain bridge is supplied with the working power, the torsion electric signal of the elastic shaft can be tested. This is the basic torque sensor. mode. A very important application of torque sensors in the car. The torque sensor on the car checks the torsional deformation of the torsion bar and converts it into an electronic signal to the electric power steering system under the battery. The sensor comprises a phase splitter unit 1 and 2 and a torsion bar. The sensor 1 is located in the steering spindle and the sensor 2 is located in the pinion shaft. After the torsion bar rotates, the two phase splitter units generate a relative angle and the converted voltage signal is transmitted to the sensor. Electric power steering system, electric power steering system based on the relative position of the two units to determine the EPS steering motor to provide the appropriate operating voltage, of course, this also uses the angle sensor. The electric power steering system starts the motor to generate power only when the steering is required, and can reduce the fuel consumption of the engine; it can provide the best assistance under various driving conditions and reduce the output torque of the motor caused by the uneven road surface through the transmission. Helps to perturb the steering system, improves the steering characteristics of the car, and improves the vehicle's active safety. Without hydraulic circuits, adjustments and inspections are easier, assembly automation is higher, and different programs can be used to quickly match different models. , shorten the production and development cycle; there is no oil leakage problem, reduce pollution to the environment.
Electric power steering system is mainly through the cooperation of the torque sensor, through the torque sensor to detect the driver's steering wheel steering torque torque or rotation angle and direction, and the required information into a digital signal input control unit, and then by the control unit After these signals are calculated, a torque that is compatible with the driving conditions is obtained. Finally, instructions are issued to drive the motor. The output torque of the motor is assisted by the action of the transmission. It is not difficult to see that the torque sensor is quite important. The damage of the torque sensor on the car will directly lead to the loss of the steering assist function during the driving of the car, which makes the steering failure become rigid. This torque sensor is very important in the safety of the car, and the quality of the torque sensor will directly determine the safety factor of driving.
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