2023-02

Detailed explanation of the working principle of optical encoder

The optical encoder, a sensor that converts the mechanical geometric displacement on the output shaft into a pulse or digital quantity by means of photoelectric conversion, is the most used sensor at present. The general optical encoder mainly consists of a grating disk and a photoelectric detection device. In the servo system, because the photoelectric code disk and the motor coaxial, when the motor rotates, the grating disk and the motor rotate at the same speed. By the light-emitting diode and other electronic components composed of detection device detection output a number of pulse signal, its principle as shown in the figure. By calculating the number of pulses output by the photoelectric encoder per second can reflect the current speed of the motor. In addition, in order to judge the direction of rotation, the code plate can also provide two channels of optical code output with 90° phase difference, and determine the motor's steering according to the state change of the dual-channel optical code. According to the detection principle, encoders can be divided into optical, magnetic, inductive and capacitive types. According to its scaling method and signal output form, it can be divided into 3 types: incremental type, absolute type and hybrid type.

2023-02-27

Detailed explanation of the working principle of optical encoder

2013-05

Guangzhou Automation Fair 2013

2013-05-15

2023-02

What does the sensor do?

Sensors have a wide range of technologies, perceive a wide range of properties, and have a wide range of applications. As a result, sensors play a vital and ubiquitous role in almost every industry. The ability of sensors is to measure a wide range of data about the activities that occur within a system.

2023-02-27

2023-02

Smart greenhouse, growing vegetables with high-tech

At one time, traditional agriculture was an industry that depended on the weather, and farmers, who worked hard all year, sometimes did not get a good harvest. Nowadays, more and more new technologies are changing the face of traditional agriculture. With the development of intelligent greenhouse greenhouses, now it is winter but many greenhouses are ushering in the harvesting season.

2023-02-27

Smart greenhouse, growing vegetables with high-tech

2023-02

Gas sensor application scenarios

Gas sensors are widely used in civil, industrial and agricultural applications, and different types of sensors are classified according to different usage scenarios.

2023-02-27