In the adjacent figure R1 = 56kΩ, R2 = 45kΩ, R3 = 138 kΩ and V supply = 12V. If the bridge is in balance (VA=VB) at 20°C, calculate, 1) the resistance of the RTD at 20°C; 2) the resistance of the RTD at 70°C; 3) the voltage difference on the inputs of the differential amplifier if the RTD is at 70°C. (α20 = 0.00392Ω/°C
In the adjacent figure R1 = 56kΩ, R2 = 45kΩ, R3 = 138 kΩ and V supply = 12V. If the bridge is in balance (VA=VB) at 20°C, calculate, 1) the resistance of the RTD at 20°C; 2) the resistance of the RTD at 70°C; 3) the voltage difference on the inputs of the differential amplifier if the RTD is at 70°C. (α20 = 0.00392Ω/°C
Introductory Circuit Analysis (13th Edition)
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ISBN:9780133923605
Author:Robert L. Boylestad
Publisher:Robert L. Boylestad
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In the adjacent figure R1 = 56kΩ, R2 = 45kΩ, R3 = 138 kΩ and
V supply = 12V. If the bridge is in balance (VA=VB) at 20°C,
calculate,
1) the resistance of the RTD at 20°C;
2) the resistance of the RTD at 70°C;
3) the voltage difference on the inputs of the differential
amplifier if the RTD is at 70°C.
(α20 = 0.00392Ω/°C)
Transcribed Image Text:Vout
Differential
amplifier
R2
в
Vsupply
RS
RTD
(10)
B.
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