Temperature Measurement Sensor Types

The sensors used for measurement can vary from capillary bulb thermometers and bi metal sensors to sensors that use varying voltage signals or resistance values.

Temperature measurement sensor types.

These sensors are effectively two identical diodes with temperature sensitive voltage vs current characteristics that can be used to monitor changes in temperature. Each sensor option thermocouple rtd and thermistor is unique in its design and theory of operation. A temperature sensor as the name suggests senses the temperature i e. It measures the changes in the temperature.

Widest type j is 210 to 1200 c type k is 95 to 1260 c other types can range as low as 270 c or as high as 3100 c. There are different types of temperature sensors used in the market today including resistance temperature detectors rtds thermocouples thermistors infrared sensor and semiconductor sensors. Most commonly temperature sensors are used to measure temperature in circuits which control a variety of equipment s. They can be used to detect solids liquids or gases over a wide range of temperatures.

Sensor thermistor thermocouple rtd pt100 temperature range. This document goes into detail about the theory of operation types and considerations surrounding three types of temperature measurement sensors. These sensors use bi metallic strips which have different expansion rates at a particular temperature. Further each sensor option comes in a variety of styles suited for different application needs.

They all measure temperature by sensing some change in a physical characteristic. In a temperature sensor the changes in the temperature correspond to change in its physical property like resistance or voltage. There are different types of temperature sensors like temperature sensor ics like lm35. This document provides context and information to help you select the best temperature sensor for your application needs.

Contact temperature sensor types these types of temperature sensor are required to be in physical contact with the object being sensed and use conduction to monitor changes in temperature. Temperature measuring sensors come in a wide variety and have one thing in common. They offer a linear response but have the lowest accuracy of the basic sensor types at 1 c to 5 c.