GS8819

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Position Sensors - Angle, Linear Position Measuring

The GS8819 is a precision absolute multi-turn angular position transducer capable of measuring a wide range of rotary motion. Developed by Geneva Logic, it provides a measuring range of up to 20 revolutions (or 400 turns) and is suitable for applications in industry, aerospace, and automotive, among other areas. The GS8819 is a single-chip device that uses principles of radial capacitance to determine the angular position. The device produces an analog voltage output proportional to the angular displacement. This output can be interpreted by analog-to-digital converters for further processing in a system.

The difference between absolute and incremental encoders is that the absolute encoder can detect its position without being referenced to a specified starting point, while an incremental encoder needs to be zeroed out at the beginning of travel. This makes the GS8819 preferable when accuracy and repeatability are key factors since z-indexing is eliminated from the startup process.

The device contains two electrode plates that are encased within a chamber that can house a variety of fluids, including oil and silicone. As the rotary shaft is turned, the radial capacitance between the two plates alters, and the resulting capacitance is sensed. This is then calculated to provide a linear output voltage that corresponds to the angular displacement.

The GS8819 provides an analog voltage output proportional to the angular position and can accurately measure up to 400 full turns without loss in accuracy. This makes it ideal for applications requiring extreme accuracy, such as motion control, encoders, accelerometers, and robotics. In addition, the device has a long life and can be packaged with an optional integrated temperature sensor for applications that require thermal compensation for greater accuracy. In addition, the device is shielded with a durable epoxy casing to protect the internal components from dust and other environmental elements.

The GS8819 is a flexible and reliable device that is well suited for a variety of applications in motion control, encoders, accelerometers, and robotics. Its high accuracy and long life make it ideal for use in harsh environments, and its ability to measure up to 400 full turns without loss in accuracy make it an attractive choice for applications requiring extreme accuracy and repeatability.

The GS8819 is an excellent choice for applications in which absolute positioning and long life are key factors. With its robust design and ability to work in a variety of environmental conditions, the GS8819 is an excellent choice for applications where accuracy and repeatability are paramount. No matter the application, the GS8819 can offer an accurate and reliable solution for measuring angular displacement. Its long life and its ability to accurately measure up to 400 full turns without loss of accuracy make it a great choice for applications in which absolute positioning and long-term stability are critical.

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