AEDT-9811-N00

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Encoders: AEDT-9811-N00 Application Field and Working Principle

Encoders are commonly used for position feedback and velocity control in motion control systems. The AEDT-9811-N00 is an incremental optical encoder designed to provide high resolution feedback for positioning and velocity control. This encoder and many other encoders offer a variety of features for a range of applications, including industrial, automotive and medical applications. With their ability to provide accurate position and speed feedback, these encoders are becoming indispensable for the control of robots, servomotors and other motion control systems.

Application Fields

The AEDT-9811-N00 is designed for a range of rotary and linear applications, and is able to provide accurate and reliable feedback about motor position and speed. This encoder is used in a variety of industrial, automotive, and medical applications, such as robots, medical instrumentation, and other industrial machinery. Its features and capabilities make it suitable for positioning of axes and for velocity control. The encoder can also be used in optical measurement equipment, such as bar code readers and scanners.

Working Principle

To understand the operation of the AEDT-9811-N00, it’s important to understand the principle behind the component. This encoder uses an incremental optical detection scheme, in which a disk is attached to a shaft and a photointerrupter arrangement is used to detect its rotations. Two light emitting diodes (LEDs) are mounted adjacent to each other at a fixed distance and a code wheel is mounted on the shaft in between them. As the shaft rotates, the code wheel interrupts the passage of light between the two LEDs, producing pulses for each rotation. These are then interpreted by the electronics to produce a signal which can be used to determine the instantaneous rotational position and speed of the shaft.

The AEDT-9811-N00 has a resolution of up to 1024 pulse counts per revolution, making this encoder suitable for precise position and speed feedback. This resolution is obtained by virtue of the number of slots in the code wheel mounted on the shaft. Every time the slot passes the optical gap between the two LEDs, a pulse will be transmitted and these are counted by the receiving electronics to give an understanding of the rotational position.

The AEDT-9811-N00 is a low noise encoder and offers high accuracy repeated over many revolutions, making it an ideal solution for high precision applications. The encoder can also be used for single revolution applications. In such cases, the internal counter is preset with a certain value and the encoder counts down to measure the rotary motion. A digital interface is provided in the form of outputs, including TTL, RS-422, RS-485 or Optical Coupling, allowing for communication with the external device. This makes it easy to integrate the encoder into existing control systems.

Conclusion

The AEDT-9811-N00 encoder is designed to provide accurate position and velocity feedback in a range of applications. Its incremental optical detection scheme allows for high resolution feedback, making it suitable for high precision and velocity control applications in industrial, automotive and medical applications. The encoder also provides a digital interface in the form of various output signals, making it easy to integrate into existing control systems.

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