Design for a Contactless Temperature Sensor System with Thermosensitive Magnetic Material

Abstract

It is generally desirable that material properties should remain constant in magnetic materials used for transformers and other electrical machinery and apparatus. However, the relative permeability of thermosensitive magnetic material depends on the temperature. Recent years have seen the development of various thermosensitive magnetic materials, whose relative permeability changes linearly over a wide range of temperatures. We designed a contactless temperature sensor system using one of these thermosensitive magnetic materials.