There are several kinds of thermal resistance of the resistance measurement method? When installation should pay attention to?

Thermal resistance thermometer is used more and more, in life and how to measure? What is method? There are several ways to measure? The following will introduce: heat resistance of the resistance value measurement points two laboratory precision measuring and industrial measurement, including: ( 1) Laboratory of precision measurement commonly used there are two ways A. Bridge method measuring bridge method is commonly used in measurement of a bridge, miller Smith bridge, arm bridge transformer ratio, current comparator measuring bridge, etc. B。 Potentiometer to measure the potential measurement method is commonly used in the production of UJ type low resistance dc potentiometer. （ 2) There are two kinds of industrial measurement and A. Moving-coil instrument measurement method, also called unbalanced bridge measurement; B。 Automatic balance bridge measurement. Industrial heat resistance when installation should pay attention to the following: ( 1) Thermal resistance when installation should avoid to open next to the oven door or heated object, the environment temperature is not easy to over 100 c; （ 2) Installation objects should avoid strong vibration; （ 3) Protecting tube insertion depth general should not be less than 8 - of protecting tube diameter 10 times; （ 4) Measure the surface temperature, the measured surface should be clean, is a thermal components in contact with the object being measured is good; （ 5) For thermal resistance under pressure, good seal should ensure the installation place.