Encoder Is A Sensor That Has Wide Range Of Industrial Applications

 

Encoder 

An Encoder is a sensor that detects position. It is usually used in robotics to measure the rotational and linear motion of a motorized device. They can be an internal part of the device or externally attached to the device.

There are many types and they vary in size, type, and cost. They are used in a wide range of industries and applications.

They come in two main forms: an incremental and absolute encoders. Incremental one are designed to track position and provide a steady stream of output signals. They use a combination of optical and electrical interfaces to determine position.

The Encoder consists of a code disc connected to the shaft of the device, with clear and also opaque areas that are surrounded by a light-emitting diode (LED). A receiver mounted on the back of the disc transforms the obtained pulse signal into an electrical signal. A typical incremental has 2 output signals, "A" and also "B". Each signal is offset from the other by 90 degrees. The direction of rotation is figured out by comparing the two signals.

This is a simple method to determine the motion of an incremental one, and the input interface of this device should be compatible with this type of signal. Some have three signals, "A", "B", and "Z". The output of the third signal is used to identify the zero reference point of the machine. Unlike incremental, absolute one are not sensitive to noise or interference and can be counted without being memorized. These Encoders are also more durable because they do not require a direct connection between the sensor and the rotating axis of the device. They are mainly used in a variety of industrial and consumer electronics products. They are widely found in industrial robots, automobiles, computers, medical equipment, and even sports cars.

 

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