An Infrared Thermometer for Measuring the Temqerature of a Small Target Area

An apparatus was designed to measure the temperature of the grnding spot in a grinding process. The dimension of the target area is about 0.4 × 0.6mm8 Its measuring temperature range is from 600℃ to 1700℃.Thus,this apparatus can be used for many other purposes.
The principle and structure of this infrared thermometer were briefly stated. The situations of it's application in the grinding experiments were also mentioned.