Lämpömittausvastus

Lämpömittausvastus, often abbreviated as LMV, is a Finnish term referring to a temperature-sensitive resistor. These components are crucial in many electronic circuits designed for temperature measurement or control. The fundamental principle behind an LMV is that its electrical resistance changes predictably with variations in its temperature. There are two main types of LMV: negative temperature coefficient (NTC) thermistors and positive temperature coefficient (PTC) thermistors. In NTC thermistors, resistance decreases as temperature increases, while in PTC thermistors, resistance increases with rising temperature. The specific material composition and manufacturing process determine the resistance-temperature characteristic of a particular LMV. LMVs are widely used in applications such as household appliances like ovens and refrigerators, automotive systems for engine temperature monitoring, and in industrial process control. Their simplicity, cost-effectiveness, and relatively good accuracy make them a popular choice for many temperature sensing tasks. The precise calibration of an LMV is essential for accurate temperature readings in its intended application.