What Is The Difference Between Dynamic And Static Torque Sensors

In fact, the difference between the two lines is relatively large, which is mainly reflected in the sampling rate of the instrument panel. Dynamics are often used to detect strong changes in torque, so it is necessary to perform capture torque or torque estimation, which is usually common in electric wrenches, motor output torque, and diesel engine output torque.

The static data torque sensor is used to detect the slow change of torque. The sampling rate is generally lower than 50 times per second. It is often used to detect the static load torque of the manual torque wrench. This sensor is not widely used, and is only suitable for system testing software such as testing machines and static torque detection.

In contrast, dynamic torque sensors can be used in a wide range of applications, including large tractors, trolleys, airports, and various types of ships, as well as measuring torque in mining equipment. In addition, it can also be used in wastewater treatment system software. In industrial production, there are also various types of rotating electromechanical equipment output torque and power detection, such as motors, gas turbines and so on.

There are still obvious differences between static data and dynamic torque sensors, especially in terms of scope of application. Basically, dynamic products are better and more diverse in use. Of course, different sensors will naturally have their own characteristics, so the selection needs to be determined according to the actual use. With the development and continuous improvement of the automatic control system, there will be higher requirements for the accuracy requirements, corresponding speed and reliability of the torque sensor.

Torque sensors are typically used to measure the magnitude and direction of driver torque acting on the steering wheel and convert it into an electrical signal. The power steering ECU receives the signal and the vehicle speed signal to determine the direction and magnitude of the auxiliary power, so as to reduce the control steering torque at low speed and moderately increase the control steering torque at high speed. It is one of the important components of the electric power steering system. Note that more porridge's official account and email address can get free electronic data.

Torque sensors can be divided into contact and non-contact. Non-contact torque sensors are also known as sliding variable resistive torque sensors. A contact torque sensor is a torsion bar mounted between the steering shaft and the steering pinion. When the steering system is working, the deformation of the torsion bar is measured with a slip ring and a potentiometer and converted into a voltage signal. There are two pairs of pole rings in a non-contact torque sensor. When the input shaft and the output shaft are relatively twisted, the air gap between the magnetic pole rings changes, causing a change in the electromagnetic inductance. An induced voltage is generated in the coil, and the voltage signal is converted into a torque signal. Non-contact torque sensing has the advantages of small size and high precision. For example, the Toyota Corolla sedan uses a non-contact torque sensor.