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    Temperature Sensors: Compare and Contrast Between Thermocouples and RTDs

    In simple words, temperature sensors are devices that collect data temperature from a specific source. These devices transform the information to data that can be easily deciphered by another device. Temperature sensors come in a variety of types and are used for a wide range of medical, industrial, defense, and Aerospace applications. These sensors are needed in applications where a specific temperature is required for a range of reasons from avoiding ice buildup to ensuring chemical and blood tests are run at optimal temperatures.

    Variations in temperatures during certain processing applications, such as medical testing and industrial reactions, bring about significant changes in profits, quality, and safety. Several applications in industries like oil and gas, refining, petrochemical, power, pharmaceutical, etc. are affected by changes in temperature. Hence, it is important to keep a check on the temperature and monitor its changes to support smooth operations. Choosing the right temperature sensor depends upon the specific application. Please call Birk to discuss your application with one of our experienced engineers so we can guide you to the perfect sensor for your application.

    RTD Vs Thermocouple Temperature Sensor

    Before calling RTD (Resistance Temperature Detector) a better temperature sensor than thermocouple temperature sensor (TCs) or vice versa, it is important to first understand their respective field of features and applications. For a layman, TCs typically offer a faster response than RTD. This faster response can help keep tighter control of the process temperature.


    There are advantages to RTD’s as well. Over time TCs have a tendency to “drift” which means their feedback becomes less accurate the longer they are in service. Due to this “drift” many engineers choose to use an RTD to ensure accurate feedback over time. RTD’s also offer a more precise reading and have multiple accuracy ranges to choose from and are relatively inexpensive.

    Choosing the right sensor type can be a daunting challenge and choosing the wrong type can lead to a multitude of issues down the road. Birk’s experienced engineers will be happy to help in the choice of the perfect type of sensor for any of your applications.

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