temperatuuriandurist

A temperature sensor, or temperatuuriandur in Estonian, is a device that measures temperature and converts it into a signal that can be read and understood. This signal can be electrical, digital, or even a simple visual display. Temperature sensors are fundamental components in a vast array of applications, from everyday consumer electronics to complex industrial processes.

There are several common types of temperature sensors. Thermocouples, for instance, generate a voltage proportional to the temperature difference between two dissimilar metals. Resistance Temperature Detectors (RTDs) use the principle that the electrical resistance of a metal changes with temperature. Thermistors are semiconductor devices whose resistance changes significantly with temperature, often in a non-linear way. Infrared sensors, on the other hand, measure the thermal radiation emitted by an object to determine its temperature without physical contact.

The output of a temperature sensor is typically processed by other electronic components. This processing can involve amplification, linearization, or analog-to-digital conversion to provide a usable measurement. The accuracy and range of a temperature sensor depend on its type and construction, making it crucial to select the appropriate sensor for a given task. Applications range from weather monitoring and medical devices to automotive systems and industrial automation, highlighting their widespread importance in modern technology.