How to choose a satisfactory temperature and humidity sensor |
Posted: August 9, 2022 |
Temperature and humidity sensor refers to the temperature and humidity values in the air through the detection device, and the measured temperature and humidity values are transformed into electrical signals or other required forms of signal output according to certain rules, which are used to meet the needs of users. The temperature and humidity sensors on the market generally measure the temperature value and relative humidity value. So thousands of good temperature and humidity sensors, how can you pick your favorite temperature and humidity sensor?The choice of temperature and humidity sensor considerations. 1.according to their own field to determine the temperature and humidity sensor measurement range. Each industry because of the use of the environment, the process is different so the temperature and humidity measurement range are different. Generally speaking, the meteorological or scientific research temperature and humidity departments for temperature and humidity range requirements are more extensive. If not involved in the above two areas, you can choose a universal temperature and humidity sensor, but of course, according to their own actual situation to the temperature and humidity sensor manufacturers to propose the measurement range for customization. Jianda Renke temperature and humidity sensor general default range is -40 ~ 80 ?, humidity range 0 ~ 100% RH. 2.According to their needs to determine the temperature and humidity sensor measurement accuracy. Measurement accuracy is also an important indicator of the sensor, you can choose the right accuracy according to your field and needs. For example, hospitals, refrigerated transport and other industries to the temperature and humidity accuracy is relatively high, while factories, manufacturing, etc. may not require as high a measurement accuracy. Of course, for each percentage point increase in measurement accuracy, its requirements and grade will rise significantly, and the price will be different. Jianda Renke equipment default temperature accuracy is ± 0.5 ?, humidity default accuracy is ± 3% RH, if you want higher accuracy can also do temperature ± 0.4, humidity ± 2% RH, there are professional institutes issued by the test report, the accuracy is reliable. 3.Also take into account the temperature and humidity sensor time drift and temperature drift of the impact. Because the temperature and humidity sensor needs to be measured in contact with the water vapor in the atmosphere, so the equipment is not sealed. This causes its life and stability will vary according to the environment, resulting in time drift is also the service life of floating, in general, temperature and humidity sensor service life of one year to two years. Temperature drift refers to the application of temperature changes in the range, whether the sensor can work properly, the measurement data is normal, which is also very important indicators. 4.According to the specific environment of their own equipment use, determine the equipment.
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