AMR Sensors FAQ

Characteristics

What is Temperature characteristic? 

AMR sensors contain permalloy, a material whose sensitivity varies with a change in outside temperature. Generally permalloys exhibit higher sensitivity at lower temperatures. 
Some AMR sensors integrate temperature compensation circuits that work to give the sensors higher sensitivity with an increase in temperature. In these sensors, the permalloy and temperature compensation circuit have the opposite effects on sensitivity to minimize fluctuations with changes in temperature.

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