temperatuurimõõtur

Temperatuurimõõtur is the Estonian word for thermometer. A thermometer is an instrument used for measuring temperature. They work on the principle that substances expand or contract with changes in temperature. Historically, thermometers have utilized various substances, such as mercury or alcohol, which change in volume predictably with temperature. As the substance heats up, it expands and rises in a calibrated tube, indicating a higher temperature. Conversely, when it cools, it contracts and falls, indicating a lower temperature.

Modern thermometers employ a wider range of technologies. Digital thermometers often use thermistors or thermocouples, which are electronic components whose electrical resistance or voltage output changes with temperature. These changes are then processed and displayed as a numerical reading on a digital screen. Infrared thermometers, on the other hand, measure the thermal radiation emitted by an object without physical contact. This makes them useful for measuring the temperature of distant or inaccessible objects, or in situations where contamination is a concern.

Temperatuurimõõturid are essential tools in many fields, including meteorology for weather forecasting, medicine for diagnosing illnesses, industry for process control, and in households for everyday temperature monitoring. The accuracy and range of a thermometer depend on its design and intended application, with specialized instruments available for extreme temperatures or highly precise measurements.