The important position of angle sensor in intelligent control

With the advancement of Industry 4.0 and my country’s 2025 national development strategy for smart manufacturing, in the field of automation control technology, repetitive motion control, precise position control, multi-posture, multi-function, and intelligent control represented by intelligent robots have reached an unprecedented scale. The speed is booming. Angle sensors, also called angular displacement sensors, are in a very important basic position among various actuators.

The basic form of motion of an object is translation and rotation. The translation of linear motion can also be turned into a form of rotation through a rack and pinion or a connecting rod. In particular, most of the power sources we currently use are driving methods represented by rotating motors, so the angle sensor is in a very important basic position in automatic control. If the precise control from the rotation of the motor can be achieved, it will undoubtedly be of great significance to the field of automatic control technology.

According to the application field angle measurement is roughly divided into the following situations:

1) Accurate measurement of local area: such as rudder wing feedback control, pendulum recorder servo control, textile cable tension measurement, precision zero calibration control, etc.; generally require high resolution angle sensor, good reset accuracy, and large original output signal , High response frequency.

2) Measurement of given range area: such as accelerator brake pedal, valve opening and closing, parking gear lever, stage lighting, turntable rotation, copy control, sports fitness equipment, conventional 0~90°, 0~180°, or ±90° , ±120°, etc. Generally, angle sensors are required to have strong environmental applicability, long service life, and stable and reliable sensor performance.

3) 360° full range rotation: such as construction machinery rotation, solar panels, wind power generation, telecommunication receiving antenna rotation, robot spatial positioning, etc.; the angle sensor digital output is required for full range measurement, and the analog output signal jumps less than 1° Below; the sensor can be applied to harsh conditions such as high and low temperature, water and gas, corrosive environment.

4) Multi-turn angle measurement: CNC machine tool positioning, elevator floor positioning, crane hoisting and moving multi-turn position measurement, etc. The incremental encoder is conventionally used, and the absolute position multi-turn encoder is used in special cases. But the cost is generally higher. Beijing Tianhaike Co., Ltd. uses MEMS to develop an incremental magnetic encoder with a resolution of 1 to 16 bits and a 12bits single-turn resolution × 12bits turn-off rotation measurement effective absolute position magnetic encoder.

5) Spatial attitude angle measurement: refers to the measurement of the spatial rotation angle of the measured object relative to the horizontal or vertical position. There are deadweight pendulum tilt angle sensors and MEMS acceleration tilt angle sensors.

okplazas.com's series of DWQT magnetic angle sensors, QXJ tilt angle sensors, high-precision digital angle sensors, CB magnetic encoders and other products are widely used in more than 500 enterprises and scientific research institutes in dozens of technical fields in the national economy And national key projects. The angle sensor has unique product characteristics in terms of high precision, high reliability, anti-interference, and harsh environment applicability. In the national pillar industries railways, textiles, petroleum, metallurgy, automobiles, machine tools, transportation, ships, automatic control, medical equipment, military industry and other fields, it has obtained quality recognition and obtained 9001 quality management system certification. Committed to the innovation and development of magnetic sensors for 30 years, condensed hundreds of application cases, can provide users with practical angle sensor selection programs, consulting guidance, special product customization, and provide cost-effective, timely delivery, reliable performance Products, enjoy the support of a complete after-sales service system.