AS37-H39B-K21S

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Encoders

Encoders are devices that convert variation in physical input to digital output to measure changes in position, velocity, or acceleration. AS37-H39B-K21S encoders offer an improved level of performance with an excellent combination of digital control and torque measurement capabilities.

Application Field

AS37-H39B-K21S encoders are specifically designed for use in industrial automation and instrumentation applications, such as motor control systems, factory automation, robotics, machine tools, and packaging machines. The encoders also have applications in motion control, machine vision, and feedback systems where accurate position, velocity, or acceleration information is necessary.

Working Principle

AS37-H39B-K21S encoders convert motion into digital signals via a set of two-dimensional arrays of detectors. The detector array contains devices that sense the presence of a rotating surface pattern that encodes information about the motions and speed of that surface. The signal generated is compared against a reference signal and changes the digital output in response to any variation in the motion. This digital output can then be used to control the operation of the device.

The AS37-H39B-K21S encoders utilize a technology called Magnetic Residual Imaging (MRI) to determine motion. This is done by magnetizing the edge of the rotary pattern to create a magnetic stripe code that is read by use of a Hall Effect sensor. The MRI technology allows the encoder to determine the motion by the relative position of the magnetized edge and a diagonally alternating magnetic field created by a fixed magnet.

As the encoder moves, the Hall Effect sensor reads the passing magnetic field and produces a signal indicating position relative to the edge. This signal is then compared to a reference signal and the difference is used to determine the velocity and direction of the motion. This information is then encoded into a digital signal that can be used to control the equipment.

AS37-H39B-K21S encoders offer a high level of accuracy and stability thanks to their advanced magnetic sensing technology. This makes them well suited for applications requiring precise control and measurement, such as industrial automation and instrumentation.

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