HEDS-9700#H52

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Encoders are devices that are used to detect motion or position over a range of variables. They are found in a variety of applications including industrial automation control and robotics. HEDS-9700#H52 is an encoder from the Hybrid Encoder Series made by Avago Technologies, designed for use in position and velocity sensing applications. This article will discuss the application fields and working principles of HEDS-9700#H52 encoder.

Application Fields

Avago HEDS-9700#H52 encoders are used in a variety of applications that require high-accuracy position and/or velocity sensing, including:

• Industrial Automation and Control: The encoder can typically be found in servo motors and stepper motors, and is useful in applications such as material handling systems, pick-and-place robots, and semiconductor wafer sorting.
• Robotics: Robots use the encoder to configure their initial conditions, track movement, and detect positional and velocity data for path planning and other motion control applications.
• Monitoring and Testing Equipment: The encoder is often utilized in dynamic testing and monitoring systems such as vibration and noise testing equipment.
• Medical Equipment: HEDS-9700#H52 encoders are used in medical imaging devices, medical robots, and endoscopic imaging systems.

Working Principles

The HEDS-9700#H52 encoder uses an optical sensing system to measure various input parameters and convert them into digital signals. This encoder utilizes a Hybrid Encoder Scheme with two independent optical disks, each comprised of two code arms. One disk has 21 "marks", or lines, and the other contains 24, resulting in a total of 900 unique positions or states. It is this hybrid scheme that allows it to sense positions over a range of 0-900 counts.

When the disks are rotating, the encoder creates pulses at regular intervals. Each pulse corresponds to one of the 900 unique positions and is received by the encoder circuitry. This circuitry then counts and stores the number of positions that have been received. By calculating the rotation direction and rate, the position of the disk can be accurately determined. The position data is then transmitted to a host computer or other device in a digital format.

The encoder can also measure changes in velocity. By tracking the frequency of pulses, the encoder can determine the rate at which the disks are rotating. This data is also transmitted to a host computer or other device in a digital format. The advantage of this system is that it is low cost, compact and simple to implement.

Conclusion

The Avago HEDS-9700#H52 encoder is a robust optical encoder designed for use in position and velocity sensing applications. It has a wide range of application fields, including industrial automation and control, robotics, monitoring and testing equipment, and medical equipment. This encoder uses a hybrid encoder scheme which consists of two independent disks, each with 21 and 24 \'marks\', or lines, respectively. When the disks rotate, pulses are sent to the encoder circuitry which then count and store the number of positions received. The encoder can determine the position and velocity and transmit the data in a digital format to a host computer or other device.

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