Torque sensor development has experienced for a long time, the performance of the torque sensor is becoming more and more good, in fact, torque sensor in general can be divided into three phases, respectively, the first rotary torque sensor measurement technology and the birth of modern torque sensor.

The historical evolution of the torque measuring technique, began in 1678. In that year, Robert hooke, describe the famous hooke's law of material related extension and the ratio between the material tension. Bridge circuit, then the Hunter - division, including the change of the minimum voltage can be measured. However, switching the second after the name of the inventor of hui stearns electricity, belong to the hunt family depending on actual reputation.

The first rotary torque sensor and sensor measurement system launched in the market in 1945 according to the principle of it is if the shaft axial torque load below, a torsion Angle, the torque is proportional to the. The Angle of the Angle measuring system can measure.

Modern sensors usually have analog signal output torque. In these interfaces, the adjacent interference power module and the drive is possible, especially in the case, in the past for this long feed pipe and high dynamic, increase the signal level sensor, signal level is + 5 v and/or normally + / - 10 v. In many applications, however, the anti-interference ability is not enough. The solution is a kind of digital electronic sensors. Modern torque sensor, integrated electronic area located on the shaft, the diameter of the above, to be applied to the rotation of the rotating part of the transformer and electron attachment on the axis of rotation.

Torque sensor technology is in rapid development, I believe that with the development of sensor technology, the performance of the torque sensor will be further improved. Its application scope will be further expanded.