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Magnetoresistive Angle and Linear Position Measurements (CN0368)

The compact two-chip circuit shown in Figure 1 provides a contactless anisotropic magnetoresistive (AMR) measurement solution ideal for either angle or linear position measurements. The two-chip system is capable of providing better than 0.2° angular accuracy over 180°, and linear accuracy of 2 mil (0.002 inch) over a 0.5 inch range, depending on the size of the magnet used.

The circuit is ideal for applications where high speed, accurate, noncontact angle and length measurements are critical, such as machine tool speed control, crane angle control, brushless dc motors, and other industrial or automotive applications.


Figure 1. Magnetoresistive Angle and Linear Detection System (Simplified Schematic: Decoupling and All Connections Not Shown)

Возможности

  • MR Angular and Linear Position Measurement
  • Single Supply
  • Small Footprint

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Magnetoresistive Angle and Linear Position Measurements  CN0368

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