If you choose to be a reliable method for temperature measurement, first you need to select the correct temperature instruments, which is a temperature sensor. Wherein thermocouples, thermistors, platinum resistance (RTD) and temperature tests are the most commonly used IC temperature sensor. Thermocouple temperature measurement is the most commonly used temperature sensor. Its main advantage is the wide temperature range and adapt to the atmosphere, hydraulic temperature sensor, and the strong, low price, no power, but also the cheapest. Thermocouple consists of two different metal wires connected at one end (the metal A and metal B) constituted thermocouple end when heated, wall-mounted temperature sensors, thermocouples circuits have potential difference. Available potential difference measurements to calculate the temperature. However, Sichuan temperature sensor, and the voltage between the non-linear relationship between temperature, temperature due to the non-linear relationship between voltage and temperature, and therefore the need for the reference temperature (Tref) for the second measurement, proof temperature sensor, and the use of test equipment software or hardware in the instrument Internal processing voltage - temperature conversion, to finally obtain thermocouple temperature (Tx). Agilent34970A and 34980A data acquisition system has a built-in measuring the computing power. In short, the thermocouple is the simplest and most common temperature sensors, but not suitable for thermocouple measurements and application of precision. The temperature sensor is a temperature variation is converted to electric quantity varying means (1) is a thermocouple temperature change into an electrical potential change; (2) Thermal resistance is the temperature change is converted to a resistance value change. Sichuan digital temperature sensor temperature sensor _ _ Xinfeng (certified merchants) are provided by Xinxiang City, Xinfeng Sensing Technology Co., Ltd. purification. Xinxiang City, Xinfeng purification Sensing Technology Co., Ltd. (www.xfcgq.com) (www.xfcgjh.com) is specialized in "sensors, filters, automotive sensors," the business, the company adhering to the "honesty, hard service" philosophy, to provide you with the highest quality products and services. Welcome to inquire! Contact: Li.