Industry Case
Industry case
Home - Industry case - Automated Industry
Industry Background
Application of rotary encoder in the field of automation
Application of rotary encoder in the field of automation

The development of industrialization, from mechanization to automation, has now developed in intelligence, softening, informationization and safe production. Encoders are essential sensors for this de


The development of industrialization, from mechanization to automation, has now developed in intelligence, softening, informationization and safe production. Encoders are essential sensors for this development. From the point of view of the encoder's application, it can be used as an angle sensor, indirectly as a length sensor, or as a speed sensor. In industrial control, encoders focus on speed control applications, and are widely used in variable frequency motors, servo motors, synchronous elevators, etc., and rotary encoders are used as high-speed, high-precision speed control applications.


1. The elevator field. Both elevator speed adjustment and car position control require very precise signals. Rotary encoders can provide reliable and accurate position signals and speed signals in elevator control to complete the normal operation of the elevator.

When users choose elevators, the advantages of compact structure, high power density, maintenance-free and high power efficiency are playing an important role. For passengers to feel more comfortable and continuously improve quality, innovative and efficient drive systems are needed, including motors and control systems. The technical basis of this innovative system is to provide a position value feedback system, so that the actual shaft speed of the motor can be determined in the control unit and the motor coils can be commutated in the correct phase.

A rotary encoder is such a position feedback unit. During the operation of the elevator, the following signals are calculated in real time through the detection of the rotary encoder and the software: the position of the elevator floor, the position of the speed change point, and the position of the leveling point, so as to count the floors, send out the speed change signal and the leveling signal.

2. The field of vector motors and servo motors. Vector motors and servo motors can perform speed, torque and position control in a wide range, all relying on the encoder on the motor output shaft;

I believe that all engineers who do mechanical equipment know that servo motors, stepper motors and brushless motors are the most common types of precision mechatronic motors. These motors have a common feature that they all use drivers to give numbers. The signal is given to the motor to make the motor operate in accordance with the established mode. Controllable, programmable, and high precision are the main features of these motors. However, some customers' equipment requires precise positioning, such as precise positioning of speed, precise positioning of displacement, etc. This cannot be achieved by motors and drivers alone. At this time, you need to install an encoder.

Servo motor encoder is a high-precision electromechanical component that monitors and feeds back the direction and position of the motor. If you want to achieve basic synchronization between servo and frequency conversion, a control interface is needed to control.

Rotary encoder signal measurement and processing is an important issue in servo motor control. The position, speed, and acceleration of the motor rotor all come from the encoder signal. After the pulse signal of the rotary encoder is measured and processed, accurate information will be obtained, which is the basis of control. Otherwise it will mislead control.


3. The field of construction machinery. Large construction machinery has an increasing demand for reliable speed and position detection, especially in the heavy-duty vehicle industry. Rotary encoders are widely used in electronic power steering systems, vehicle speed detectors and hybrid vehicles;

4. The field of industrial automation control production line. The factory's automated production line requires accurate speed and direction information to ensure the normal operation of the motor;

5. The field of industrial robots. Each joint of the robot needs precise control to ensure the coordinated movement or walking of the entire robot, so each joint needs a rotary encoder for coordinated control.

6. Oil and gas industry. The petroleum and natural gas industry is a high-risk industry that requires high-standard encoders with higher reliability and better sealing. They are mainly used for speed measurement of drill floor motors, turntables and sludge pumps. For example, the encoders on fuel dispensers are used for flow measurement and refueling. the amount;

Recommended Products