Problem 1 (10 points) An RTD forms one arm of a Wheatstone bridge, as shown in Figure 8.46. The RTD is used to measure a constant temperature with the bridge operated in a balanced mode. The RTD has a resistance of 100? at a temperature of 0?C, and a thermal coefficient of resistance, ?=0.003925?C?1. The value of the variable resistance R1? must

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Problem 1 (10 points) An RTD forms one arm of a Wheatstone bridge, as shown in Figure 8.46. The RTD is used to measure a constant temperature with the bridge operated in a balanced mode. The RTD has a resistance of 100? at a temperature of 0?C, and a thermal coefficient of resistance, ?=0.003925?C?1. The value of the variable resistance R1? must be set to 171? to balance the bridge circuit. a. Determine the temperature of the RTD. b. Compare this circuit to the equal-arm bridge in Example 8.1 of the reference textbook. Which circuit provides the greater static sensitivity?

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