AMR Sensors FAQQTemperature characteristics

  • AMR sensors contain permalloy (nickel-iron alloy), which is a material whose sensitivity varies based on the outside temperature. Generally, permalloys exhibit higher sensitivity at low temperatures and lower sensitivity at high temperatures.
  • Some AMR sensors include temperature compensation circuits that give the sensors lower sensitivity at low temperatures and higher sensitivity at high temperatures for canceling out the temperature characteristics of permalloys and reducing the variation in sensitivity for the sensor.

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