Analysis of temperature characteristics of eddy-current displacement sensor in which chromium molybdenum steel is assumed to be measuring object

The temperature characteristic of the eddy-current displacement sensor is important on the specification. There was an unsuitable and inconvenient point in the proposal of an analytical design approach though the technique with enough accuracy about the theoretical analysis was proposed. In this paper the sensor structure is modeled and it is analyzed on a condition near the real design. The influence given to the temperature characteristic of each element in designing EC displacement sensor became clear, and it proposed an analytical method that computational error becomes 5.3 %. © 2010 The Institute of Electrical Engineers of Japan.