(Solved):
RTD An RTD forms one arm of a Wheatstone bridge as shown in FIGURE Q2b. The RTD is used to measure ...
RTD An RTD forms one arm of a Wheatstone bridge as shown in FIGURE Q2b. The RTD is used to measure a constant temperature, with the bridge operated in a balanced mode. The RTD has a resistance of \( 25 \Omega \) at a temperature of \( 0^{\circ} \mathrm{C} \) and the thermal coefficient of resistance, \( \alpha \) is \( 0.003925^{\circ} \mathrm{C}^{-1} \). The value of resistance \( R_{1} \) must be set to \( 41.485 \Omega \) to balance the bridge circuit. FIGURE Q2b Determine the temperature of the RTD.