lämpömittausvastuksesta
Lämpömittausvastus, commonly known as a resistance temperature detector (RTD), is a type of temperature sensor. It works by measuring the change in electrical resistance of a metal wire as its temperature changes. As the temperature of the RTD increases, its electrical resistance also increases. Conversely, as the temperature decreases, the resistance decreases. This predictable relationship between resistance and temperature allows for accurate temperature measurement.
The most common material used for RTDs is platinum, due to its stability and linearity over a
To measure the temperature, an electric current is passed through the RTD, and its resistance is measured.