Classification and differences of infrared thermometers
Infrared thermometers are broadly divided into two categories. Contact and contactless. Non-contact infrared temperature measurement products include three categories: portable, online and scanning. In addition, there are some other categories, such as economical infrared thermometers, precision infrared thermometers, etc.
The temperature measurement distance is also an important aspect that affects user choice. Sometimes due to some special reasons, if the required measurement distance is longer and the volume of the object to be measured is relatively small, a thermometer with high optical resolution must be selected. Optical resolution is the ratio of the distance between the thermometer and the target to the diameter of the measurement spot. The higher the optical resolution, the greater the accuracy!
The choice of infrared thermometer/infrared thermometer can be divided into three aspects:
1. In terms of performance indicators, such as temperature range, spot size, working wavelength, measurement accuracy, response time, etc.;
2. Environmental and working conditions, such as ambient temperature, windows, display and output, protective accessories, etc.;
3. Other aspects of selection, such as ease of use, maintenance and calibration performance, and price, also have a certain impact on the choice of infrared thermometer/infrared thermometer.
The difference between contact infrared thermometer and non-contact infrared thermometer:
Non-contact infrared thermometer temperature measurement has no impact on the object; while contact infrared thermometer has an impact on the temperature field of the measured object.
Non-contact infrared thermometers detect the surface temperature of objects, have fast response times, and can measure moving objects and transient temperatures; while contact infrared thermometers are not suitable for measuring transient temperatures.
Non-contact infrared thermometers have a wide measuring range; contact infrared thermometers have a wide measuring range and require consumables
The non-contact infrared thermometer has high measurement accuracy and small resolution. It can measure the temperature of a small area, and can measure the temperature of points, lines, and surfaces at the same time. It can measure the absolute temperature and the relative temperature; contact infrared temperature measurement The instrument is not suitable for measuring toxic, high-pressure and other dangerous situations.
