MAGNETORESISTANCE TYPE DISPLACEMENT SENSOR

摘要

PROBLEM TO BE SOLVED: To provide a magnetoresistance type displacement sensor that no output change occurs even if the sensor is used in an environment that a temperature gradient might occur at the sensor itself. SOLUTION: A first magnetoresistive element 2 and a second magnetoresistive element 3 having the same constitution as that of the element 2 are disposed at the similar positions in terms of temperature gradients. A bias magnet 4 for giving a magnetic field only to the element 2 is provided, and the potential difference of the output terminals of the elements 2 and 3 is outputted.