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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