What is the difference between a thermocouple and an infrared thermometer? When should I use an infrared thermometer?

Thermocouple is a contact method of temperature measurement, when the temperature probe and the temperature of the object to be measured, get a reading. Advantages: reliable readings, good accuracy

Disadvantages: slow response time, can not be measured at a distance

Infrared thermometer is a non-contact method of temperature measurement, the measurement of the surface temperature of the object to be measured, and its measurement accuracy is very high in the laboratory conditions, but in practice, because of the emissivity, the size of the area of the object, infrared wavelengths, and other factors, the measured temperature and the actual value of the deviation is large. Advantages: fast response time, stable measured value, good consistency, can be measured from a distance

With infrared thermometer occasions:

1, the measured temperature and the actual temperature is close to

2, the measured temperature and the actual temperature deviation, but this deviation is always stable, and therefore the measured value is only used as a process control

3, the requirements of the measurement of the accuracy of the not so high