The temperature sensor generalization

Abstract: according to the use of temperature sensors, temperature measuring method is usually divided into two categories, contact and non-contact method. Overview of 1

temperature sensor, temperature measurement method based on the use of temperature sensor, usually divided into two categories, contact and non-contact method. 1) Temperature sensor contact method: by the heat balance principle, the two objects after contact, after a long enough to reach thermal equilibrium, the temperature must be equal. If one of them as the thermometer, you can use it to another object to realize temperature measurement, this way of measuring temperature is called the contact method. Its characteristic is that the thermometer will contact with good thermal object to be tested, to achieve heat balance in both. Therefore, temperature measurement accuracy is higher. The commonly used temperature sensor with thermocouple, heat resistance, etc. Using contact method of temperature measurement, temperature sensing element to contact with the object being measured, often derail the thermal equilibrium state of the object to be tested, and the measured medium corrosion effect. As a result, the structure of temperature sensing element and demanding performance. 2) Temperature sensor non-contact method: using the object's thermal radiation can be the principle of determination of the object temperature with the temperature, the temperature measuring method called non-contact method. The characteristics of the temperature sensor is: no contact with the object being measured, also don't change the temperature distribution of the object to be tested, small thermal inertia. From the point of view of principle, in this way a high temperature limit. Is often used to determine the move, rotate or above 1000 ℃ responsive surface temperature of high temperature object. I company production, thermocouple, heat resistance, compensation wire, temperature instruments, infrared thermometer, temperature sensors, temperature measuring probe, molten steel temperature measuring instrument, such as the game to contact me 13505123780 url:

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