An KID forms one arm (R4) of a Wheatstone bridge, as shown in Figure 8.8. The RTD is used to measure a constant temperature, with the bridge operated in deflection mode. The RTD has a resistance of 25 92 at a temperature of 0°C, and a thermal coefficient of resistance, a = 0.003925°C-¹.

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R₂ = R3 = 100 02
R₁= = 100 2 at
0°C and balanced
bridge conditions
R2
The
R₁
DER GRILL
till
R3
RRTD
G
E₁
FIGURE 8.46 Wheatstone bridge circuit for problem 8.6.
8.7 An RTD forms one arm (R4) of a Wheatstone bridge, as
shown in Figure 8.8. The RTD is used to measure a constant
temperature, with the bridge operated in deflection mode.
The RTD has a resistance of 25 S2 at a temperature of 0°C,
and a thermal coefficient of resistance, a = 0.003925°C-¹.
If the RTD is subjected to a temperature of 110°C and the
output voltage from the bridge is 0.66V, what is the input
voltage?
Transcribed Image Text:R₂ = R3 = 100 02 R₁= = 100 2 at 0°C and balanced bridge conditions R2 The R₁ DER GRILL till R3 RRTD G E₁ FIGURE 8.46 Wheatstone bridge circuit for problem 8.6. 8.7 An RTD forms one arm (R4) of a Wheatstone bridge, as shown in Figure 8.8. The RTD is used to measure a constant temperature, with the bridge operated in deflection mode. The RTD has a resistance of 25 S2 at a temperature of 0°C, and a thermal coefficient of resistance, a = 0.003925°C-¹. If the RTD is subjected to a temperature of 110°C and the output voltage from the bridge is 0.66V, what is the input voltage?
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