What is an RTD?
An RTD or resistance thermometer stands for resistance temperature detector that is used for measuring the change in temperature by measuring the variation in resistance over the temperature range. It can be described as a temperature transducer that converts heat energy into some other form of energy.
Resistance temperature detectors are usually detectors of wire resistance temperature that are made up of platinum, nickel, or resistance wire elements. The flexibility of choosing their configuration and shape makes them an easy-to-use device. It shows good linear characteristics over a range of temperatures which makes it predictable and useful. There are some other transducers as well like a thermocouple or a thermistor. Each can be used depending on the need.
Resistance Temperature Detector or RTD
In the electronics industry, we often need to deal with measuring certain quantities with precision and accuracy. One such quantity is temperature. There are different methods that can be used for measuring temperature depending on the operation range, sensitivity, frequency response, ruggedness, and other electrical parameters. In this article we will study what is an RTD, and how it works. We will also study the characteristics of an RTD.
In addition to that, we will study the advantages and disadvantages of an RTD. To study the real-life use of RTDs, we will study the applications of an RTD. In the end, some solved examples and some practice questions are provided for a better understanding of concepts. The article concludes with a summary in the end and some frequently asked questions.
Table of Content
- RTD
- Construction
- Working
- Signal Conditioning
- Mathematical Equations
- Graph
- Characteristics
- Advantages of an RTD
- Disadvantages of an RTD
- Applications of an RTD