What are the requirements for metal materials used to make thermal resistance?

* Question

* Answer

1 The temperature coefficient of resistance is large, the resistance keeps a single value with temperature change and is preferably linear;

2 the heat capacity is small;

3 the resistivity is as large as possible, so that the component size can be made smaller under the same sensitivity;

4 in the working range, physical and chemical properties are stable;

5 easy to obtain purer materials, material replication,