A brief description of the industry standard thermocouple thermometer calibration method Humidity calibration The standard hygrometer is placed in the geometric center of the humidity chamber, and the temperature and humidity meter to be tested is placed near the standard hygrometer. At (20-25) °C, select three calibration humidity points (such as 30% RH) in the high, medium and low humidity zones.
With the development of modern science and technology and glass technology and the improvement of people's living standards, the function of building glass is no longer just to meet the lighting requirements, but to have the characteristics of light adjustment, thermal insulation, safety (bulletproof, anti-theft, fire prevention, anti radiation, anti electromagnetic interference), art decoration and so on. With the continuous development of demand, the molding and processing methods of glass have also made new development. New High-tech Vacuum Glass have been developed, which has rapidly increased the consumption of vacuum glass for buildings and become the important part of building materials after cement and steel. ICESUN vacuum glass has released a series of Safety Vacuum Glass products including tempered vacuum glass, vacuum composite glass, and low-e vacuum glass for various applications, such as vacuum glass for passive house, for greenhouse, for sunroom, for transportation and so on.
Vacuum Glass For Buildings,Insulating Glass For Building,Vacuum Seal Glass For Building,Tempered Glass For Building ICESUN VACUUM GLASS LTD. , https://www.icesunvacuumglass.com
50% RH, 80% RH). Adjust the humidity of the humidity chamber. Generally, it is adjusted from low humidity to high humidity. Each calibration point is stable for 30 min after the humidity of the humidity chamber reaches the set value. The relative humidity value of the standard hygrometer and the relative humidity value of the tested hygrometer are recorded every 2 min. Three data are recorded for each, and the average of the three data is taken as the standard relative humidity indication value of the calibration point and the relative humidity indication value of the detected temperature and humidity meter. Then follow the same steps to make a calibration point for the next bar applicator until all calibration points have been tested. Calculated according to formula (1), the relative humidity indication error of each calibration point is given.
â–³
U = Uib-Uis( 1 )
Where: AU—the relative humidity indication error of the i-th calibration point;
Uib—the relative humidity indication of the temperature and humidity meter of the i-th calibration point;
Uis—The relative humidity indication of the standard hygrometer at the i-th calibration point.
Temperature calibration places the standard thermometer in the geometric center of the temperature box. The temperature and humidity meter is placed near the standard thermometer to select the upper, lower and intermediate points of the temperature measurement range. (You can also select three or three vibration sensors according to the user's needs. Above the temperature point of the instrument). Adjust the temperature of the temperature box, generally from low temperature to high temperature. The calibration point of each calibration bar applicator is stable for 30 min after the temperature of the temperature box reaches the set value. The temperature value of the standard thermometer is recorded separately every 2 min. Check the temperature value of the hygrometer, record three data each, and take the average of the three data as the standard temperature indication of the calibration point and the temperature agitator value of the temperature and humidity meter. Then follow the same steps to make the next calibration point, calculate according to formula (2), and give the indication error of each temperature point.
â–³T =Tib-Tis
Where: △T tinplate i—the temperature indication error of the i-th calibration point;
Tib — the temperature indication of the temperature and humidity meter of the i-th calibration point;
Tis—The temperature indication of the standard thermometer for the i-th calibration point.
For information on the thermocouple thermometer, please refer to it: http://
Http://news.chinawj.com.cn Editor: (Hardware Business Network Information Center) http://news.chinawj.com.cn