What is the definition of pt100 temperature sensor?

The pt100 temperature sensor is a commonly used temperature measuring instrument that is designed to detect temperatures in the industry. Temperature is a basic physical quantity, and all processes in nature are closely related to temperature. The definition of the PT100 temperature sensor is important to the user.
    Temperature sensors are the earliest developed and most widely used sensors. The market share of temperature sensors far exceeds that of other sensors. From the beginning of the 17th century, people began to use temperature to measure. With the support of semiconductor technology, semiconductor thermocouple sensors, pn junction temperature sensors and integrated temperature sensors have been developed in this century. Correspondingly, acoustic temperature sensors, infrared sensors and microwave sensors have been developed according to the interaction law between waves and matter.

    Conductors of two different materials, such as being connected to each other at a certain point, heat the connection point, and a potential difference occurs in a portion where they are not heated. The value of this potential difference is related to the temperature of the measuring point of the unheated part, and is related to the material of the two conductors. This phenomenon can occur over a wide temperature range. If the potential difference is accurately measured and the ambient temperature of the unheated portion is measured, the temperature of the heating point can be accurately known. Because it must have two conductors of different materials, it is called a "thermocouple." Thermocouples made from different materials are used in different temperature ranges and their sensitivity varies. The sensitivity of the thermocouple refers to the amount of change in the output potential difference when the heating point temperature changes by 1 °C. For most metal-supported thermocouples, this value is between 5 and 40 microvolts/°C.
    The thermocouple sensor has its own advantages and disadvantages. It has low sensitivity, is susceptible to environmental interference signals, and is susceptible to temperature drift of the preamplifier. Therefore, it is not suitable for measuring small temperature changes. Since the sensitivity of the thermocouple temperature sensor is independent of the thickness of the material, a very thin material can also be used to make the pt temperature sensor. Also due to the excellent ductility of the metal materials used to make the thermocouples, this subtle temperature measuring element has a very high response speed and can measure the rapidly changing process.
    Temperature sensors are the most commonly used of all kinds of sensors. The modern temperature sensor is very small in size, which makes it widely used in various fields of production practice, and provides countless conveniences and functions for our lives.

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