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.

Temperature measuring sensors come in a wide variety and have one thing in common. In addition to the characteristics of the sensors themselves operating range sensitivity linearity response time and so on you must consider the requirements each sensor type imposes on the measurement hardware. 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.

A temperature sensor consists of two basic physical types. 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. It measures the changes in the temperature. This document goes into detail about the theory of operation types and considerations surrounding three types of temperature measurement sensors.

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. There are different types of temperature sensors used in the market today including resistance temperature detectors rtds thermocouples thermistors infrared sensor and semiconductor sensors. They all measure temperature by sensing some change in a physical characteristic. These sensors are effectively two identical diodes with temperature sensitive voltage vs current characteristics that can be used to monitor changes in temperature.

Sensor thermistor thermocouple rtd pt100 temperature range. The seven basic types of temperature measurement sensors discussed here are thermocouples resistive temperature devices rtds thermistors infrared radiators bimetallic devices. Further each sensor option comes in a variety of styles suited for different application needs. Most commonly temperature sensors are used to measure temperature in circuits which control a variety of equipment s.

A temperature sensor as the name suggests senses the temperature i e. They offer a linear response but have the lowest accuracy of the basic sensor types at 1 c to 5 c. Each sensor option thermocouple rtd and thermistor is unique in its design and theory of operation.