Signal processing and environmental conditions of infrared thermometers and thermocouples
Infrared thermometer signal processing capabilities:
Measurement of discrete processes (such as parts production) and continuous processes are different, the infrared thermometer is required to have signal processing capabilities (such as peak hold, valley hold, average value). Such as temperature measurement conveyor belt on the glass, we must use the peak hold, the temperature of the output signal transmitted to the controller.
Infrared thermometer environmental conditions to consider:
Infrared thermometer is located in the environmental conditions have a great impact on the measurement results, should be considered, and appropriate solutions, otherwise it will affect the temperature measurement accuracy or even cause damage to the thermometer. When the ambient temperature is too high, the presence of dust, smoke and steam conditions, the manufacturer can choose to provide a protective cover, water cooling, air cooling system, air blowers and other accessories. These accessories can effectively address environmental effects and protect the pyrometer for accurate temperature measurement. When identifying accessories, standardised service should be required wherever possible to reduce installation costs. When smoke, dust or other particles degrade the measured energy signal, a two-colour pyrometer is the best choice. In noise, electromagnetic fields, vibration or difficult to access environmental conditions, or other harsh conditions, fibre-optic two-colour pyrometers are a good choice.
In sealed or hazardous material applications (e.g., containers or vacuum chambers), the pyrometer looks through a window. The material must be strong enough to pass through the operating wavelength range of the pyrometer used. It is also necessary to determine whether the operator also needs to see through the window, so it is important to choose a suitable mounting position and window material to avoid interfering with each other. In cryogenic applications, it is common to use Ge or Si materials as windows, which are impervious to visible light and through which the human eye cannot view the target. If the operator needs to pass through the window target, should be used both infrared radiation and through the visible light through the optical material, such as should be used both infrared radiation and through the visible light through the optical material, such as ZnSe or BaF2, etc. as the window material.
Infrared thermometer is simple and easy to use:
Infrared thermometer should be intuitive, simple to operate, easy to use staff, which portable infrared thermometer is a set of temperature measurement and display output as one of the small, lightweight, carried by the person to carry the temperature measurement of the instrument, in the display panel can display the temperature and the output of a variety of temperature information, some can be operated remotely or through a computer software programme.
In the case of harsh and complex environmental conditions, you can choose a separate system of temperature measurement head and display, in order to facilitate the installation and configuration. Can choose to match the current control equipment signal output form.
Infrared radiation thermometer calibration:
The infrared thermometer must be calibrated to enable it to correctly display the temperature of the target to be measured. If the pyrometer used is out of calibration in use, it must be returned to the manufacturer or service centre for recalibration.
