Disadvantages of Resistance Temperature Detectors
Resistance Temperature Detectors (RTDs), are sensors used to measure temperature. Many RTD elements consist of a length of fine wire wrapped around a ceramic or glass core but other constructions...
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Resistance Temperature Detectors (RTD) Construction
The RTD incorporates pure metals or certain alloys that increase in resistance as temperature increases and, conversely, decrease in resistance as temperature decreases. RTDs act somewhat like an electrical transducer,...
Resistance Temperature Detectors (RTD) Sources of Error
Resistance Temperature Detectors (RTD) Sources of Error Immersion Error – Stem Conduction With the calibration of industrial platinum resistance thermometers (RTD) stem conduction is likely to be the main source...
Effect of Lead Wire Resistance on RTD
RTDs generally use copper leads bonded to the platinum element. These leads normally connect close to the element and close to each other (so that both junctions will be at...
Difference Between RTD, Thermocouple and Thermistor
Difference Between RTD, Thermocouple and Thermistor Resistance temperature detectors (RTDs) An RTD sensing element consists of a wire coil or deposited film of pure metal. The element’s resistance increases with...