What is Torque Accuracy of the Servo?

Servo torque accuracy refers to the torque control accuracy of the servo system in the working process. The level of torque accuracy directly affects the stability and control accuracy of the servo system. In many applications that require precise torque control, such as robotics, CNC machine tools and other fields, servo torque accuracy is an important technical indicator.

A servo system is a system that uses feedback control to achieve precise position, speed and torque control. In the servo system, the servo motor provides torque output through the drive device, adjusting the size and direction of the output torque according to the control signal. Torque accuracy refers to the deviation between the actual output torque of the servo system and the expected torque, which can also be understood as the accuracy of the servo system for torque control.


The servo torque accuracy is affected by many factors, including the performance of the servo motor itself, the characteristics of the drive, the accuracy of the sensor, the accuracy of the control algorithm, and so on. First of all, the performance of the servo motor is one of the key factors affecting the servo torque accuracy. The servo motor should have a high torque output capacity and low torque fluctuations to ensure that the system can provide stable and accurate torque output.

The characteristics of the drive also have an important impact on servo torque accuracy. The driver is the key device that converts the control signal into motor output torque, and its stability and accuracy directly affect the servo torque accuracy. The driver should have high control accuracy and response speed to ensure that the system can respond quickly and accurately to the control signal.

The accuracy of the sensor is also one of the most important factors affecting servo torque accuracy. The sensor is used to measure the torque output of the motor, and the accuracy of the sensor directly determines the accuracy of the system for torque measurement. The sensor should have high resolution and accuracy to ensure that the system can accurately measure the torque output.

The accuracy of the control algorithm also has an important impact on the servo torque accuracy. The control algorithm is the core part of the servo system, which adjusts the control signal output from the driver according to the torque signal fed back from the sensor and the desired torque signal to realize the precise control of torque. The control algorithm should have high precision and stability to ensure that the system can respond quickly and accurately to the control signal.

In order to improve the servo torque accuracy, the following measures can be taken. First, select servo motors and drives with high performance. These devices should have high output capacity and low torque fluctuations to ensure that the system can provide stable and accurate torque output. Second, select sensors with high accuracy. The transducers should have high resolution and accuracy to ensure that the system can accurately measure torque output. Finally, use a control algorithm with high precision and stability. The control algorithm should have high precision and stability to ensure that the system can respond quickly and accurately to the control signal.

Servo torque accuracy is an important technical indicator in servo systems. Improving the servo torque accuracy can improve the stability and control accuracy of the system, which is of great significance for many applications that require precise torque control. By selecting high-performance servo motors and drives, highly accurate sensors, and high-precision and stable control algorithms, the servo torque accuracy can be effectively improved to meet the application requirements.