Rotary encoder defination！

Rotary encoder makes angular position of the rotational movement to analog or digital signals for measurement or control system. They can be classified in several ways, absolute or incremental by the type of output.

It consists of two phase-shifted incremental signals, square wave signal. Phase shift need to identify the direction of rotation. Cautious absolute signal encoded by a binary value, may from 4-16 bits wide.

Universal magnetic encoder comprises a linear position Hall sensor

Magnetic rotary encoder to improve battery-driven design

Improves the encoder motion control industry to create new possibilities

In the application, the absolute encoder is required if a particular setting must be identified, the available system shutdown. All other applications can use an incremental encoder. Category encoder can also be used in sensor technology, you can use mechanical contact, or more likely these days, non-contact optical or magnetic sensors.

Encoder is widely used, including consumer, automotive, industrial and medical. Provides two functions essentially encoder, human machine interface (HMI) or machine-to-machine interface (MMI).

In the man-machine interface applications, the encoder often encountered in the control panel, they are usually treated as a digital potentiometer version. A less obvious but more and more popular to use the control lever or pedal assembly, replace the mechanical cable or rod contact. Cars throttle control.

In the MMI application, always use the encoder as part of a feedback control system, or they Spindle speed monitoring. Many characteristics of the encoder system, turn off the display unit input cycle. So in the automotive throttle control, a second encoder can measure engine speed (rpm) and fuel injection timing of the engine to achieve the desired acceleration. Or, it can measure the position of a rudder on the ship to ensure that it corresponds to the setting at the helm.

Previous：How do rotary encoder work？
Next：What is a optical encoder?