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The principle of operation of temperature sensors is mainly based on the resistance change of the conductor when the ambient temperature changes.

Temperature sensors of a wider range are based on thermocouples (contact between metals with different electronegativity makes a contact potential difference that depends on temperature).

The most accurate and stable in time are resistance thermometers based on platinum wire or platinum sputtering on ceramics. The most widespread are PT100 (resistance at 0 °C-100Ω) PT1000 (resistance at 0 °C-1000Ω) (IEC751). The dependence on temperature is almost linear and obeys the quadratic law at positive temperature and the equation of 4 degrees at negative ones (the corresponding constants are very small, and in the first approximation this dependence can be considered linear). The temperature range is -200 - +850 °C.

Temperature sensors can be conditionally divided into sensors with analog and digital output, which generally differ in their application, since sensors with digital output have a narrow range of measured temperatures ranging from -50 to +125°C

Analog sensors can operate in a wide temperature range from -250 to +2500 °C. Based on the requirements of the task assigned to you, the type of sensor that will be used for the selected temperature measurement, almost any sensor can be connected to our devices.