Acting Italian Italian Ertron Optoelectronics encoder has some disadvantages

Advantages and disadvantages of Italian Italian optical encoder
An Ercheng encoder is a device that compiles and converts a signal (such as a bit stream) or data into a signal that can be used for communication, transmission, and storage. The encoder converts an angular displacement or a linear displacement into an electrical signal, the former being called a code wheel and the latter being called a code ruler. According to the readout mode, the encoder can be divided into contact type and non-contact type; according to the working principle, the encoder can be classified in the following manner.
Advantages and disadvantages of Italian Italian optical encoder
Photoelectric encoder
Advantages: small size, precision, high resolution, no contact and no wear; the same variety can detect angular displacement, and can detect linear displacement with the help of mechanical conversion device; multi-turn photoelectric absolute encoder can detect quite long range Linear displacement (such as 25-bit multi-turn). Long life, free installation, rich interface and reasonable price. Mature technology has been widely used at home and abroad many years ago.
Disadvantages: Precision but high protection requirements for outdoor and harsh environments; measuring linear displacement depends on mechanical device conversion, eliminating the error caused by mechanical clearance; detecting orbiting objects is difficult to overcome slip.
Magnetostatic grid absolute encoder
Advantages: moderate volume, direct measurement of linear displacement, absolute digital coding, theoretical range is not limited; no contact, no wear, anti-harsh environment, can be used underwater 1000 meters; interface form is rich, measurement methods are diverse; price is acceptable.
Disadvantages: resolution is not high 1mm; different types are used for measuring straight lines and angles; it is not suitable for displacement detection (more than 260 mm) in small places.