Resistance Thermometer


A Resistance Thermometer, also known as a Resistance Temperature Detector (RTD), is a temperature-sensing device that measures temperature based on the predictable change in electrical resistance of a metal with temperature. It is widely used for industrial and laboratory temperature measurements due to its accuracy, stability, and repeatability.

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To determine the temperature coefficient of resistance for platinum, using a platinum resistance thermometer & Callender & Griffith`s Bridge.

Setup Contains:– 1. Callender & Griffiths Apparatus. 2. Power Supply, 3. Platinum Thermometer. 4. Boiler with heating Arrangement. 5. Temperature Sensor. 6. DCC Wire. 7. Galvanometer 30-0-30. 8. Rheostat. 9. Instruction Manual.

Advantages of Resistance Thermometer

  • High accuracy (±0.1°C to ±0.5°C)
  • Excellent stability and repeatability
  • Wide temperature range (-200°C to 850°C for platinum RTDs)
  • More linear response compared to thermocouples

Applications

  • Industrial process monitoring
  • Medical devices (e.g., patient temperature monitoring)
  • Aerospace and automotive industries
  • Food processing and HVAC systems

 

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