With the rapid development of science and technology, it is one of the goals pursued to achieve multi-function and automation in many fields, and the convenience brought by these is undoubted, and the temperature and humidity transmitter is one of the typical examples. A temperature and humidity transmitter is a transmitter device equipped with a heat and moisture sensitive element that can measure temperature and humidity.
The temperature in the temperature and humidity transmitter is measured by the characteristics of the diode temperature sensing P-N junction, and the forward voltage decrease varies with temperature under constant current.
The humidity in the temperature and humidity transmitter is measured by moisture-sensitive capacitors, which are generally made of polymer film capacitors, and the commonly used polymer materials are polystyrene, polyimide, cool acid acetate, etc. When the ambient humidity changes, the dielectric constant of the moisture-sensitive capacitor changes, and its capacitance also changes, and its capacitance changes proportional to the relative humidity. The main advantages of moisture-sensitive capacitors are high sensitivity, good product interchangeability, fast response, low hysteresis of humidity, ease of manufacturing, and easy miniaturization and integration.
The temperature and humidity transmitter uses a highly integrated chip that compensates for the temperature and humidity, which is then amplified into a standard digital or analog signal of relative humidity and temperature by an amplifier circuit.
In industrial and agricultural production, meteorology, environmental protection, national defense, scientific research and other departments and daily life, it is often necessary to measure the ambient temperature and humidity, and the measurement of temperature and humidity transmitter is very important for biopharmaceutical, food processing, papermaking, textile and other industries.
If you have any questions about product consultation, product customization, agency, technical inquiry, quotation, etc., please contact Xingyi, 400-600-4496!
Click on the image to see the details>>