Temperature system analog circuit for Resistance temperature detector

Published:2011/9/9 2:59:00 Author:John | Keyword: Temperature system analog circuit, Resistance temperature detector | From:SeekIC

The resistance of resistance temperature detector changes as the temperature changes. Commonly used materials for resistance temperature detectors are nickel, copper and platinum. And the platinum resistance temperature detector of 100 Ω~1000 Ω is the most common type. Resistance temperature detectors are suitable for linear response of temperature measurement within -200 ° C to +800 ° C. A resistance temperature detector includes three or four wires. Figure 2 shows the connection diagram for 3-wire resistance temperature detector and the analog converter. And RL1, RL2 and RL3 respectively represent the wire’s resistance for resistance temperature detector.



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