Applications of an RTD

Let us now some applications of RTDs

  • Automotive industry uses RTDs largely for measuring the temperature change in case of engines and oil level sensors to ensure accurate functioning of these devices.
  • Food processing industry uses RTDs for the purpose of temperature change in various food processing devices like containers and instruments.
  • RTDs also find their application in electronics industry where they are used for sensing the temperature range of various amplifiers, transistors and stabilizers to ensure that they don’t exceed the limit and burn-out.
  • RTDs are also used in medical industry where it is used in medical surgical devices for measuring temperature of heated surgical trays to ensure accurate temperature is set.
  • Other places that use RTDs are power electronics industry, computer industry, consumer electronics, food handling industry and even military and aerospace.

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

Similar Reads

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....

Construction of Resistance Temperature Detector

The construction of RTD involves wrapping the resistance wire on mica base. The wire is wrapped in a way to minimize the inductance between each turn of the coil. The whole coil is encased by a stainless steel case in order to protect the wiring. The ending of the wire terminate into leads...

Working of an RTD

Let us understand how an RTD works....

Signal Conditioning of RTD

Since RTDs are passive devices, there is some signal conditioning requirement of RTDs .Let us see the circuit diagram for the same....

Mathematical Equations

It is known that RTD shows linear behaviour over a large range of temperature . The linear relation between resistance and temperature can be shown by...

Graph of Behaviour of RTD

Let us now study how will the graph of various metals that make RTD look like when draw. Here we will plot a graph with resistance on y axis and temperature on x axis for metals like Copper, Nickel and Platinum. This graph is called resistance-temperature characteristics graph....

Characteristics of an RTD

Let us now see some of the characteristics of an RTD...

Advantages of an RTD

Let us now some advantages of RTDs...

Disadvantages of an RTD

Let us now some disadvantages of RTDs...

Applications of an RTD

Let us now some applications of RTDs...

Conclusion

We have seen how resistance temperature detectors are an important kind of transducers that can help to predict the temperature variation by simply measuring resistance change .This is mainly possible because of their linear nature which makes predicting temperature over a large range possible with such high accuracy. We have also seen that although RTDs have various benefits yet there are some characteristics where other transducers work better than RTDs like in case where more sensitivity devices are needed. Discussing all this has helped us analyse what are the situations where it is best to choose RTDs for temperature measuring purpose an what are the situations where we need to search for an alternate. Some Frequently Asked Questions have been answered for readers and it is suggested that they go through them for better understanding....

FAQs on Resistance Temperature Detector

What are other temperature measurement devices?...