The unknown resistance Ru of a resistance thermometer is to be measured by a bridge circuit of the form shown figure The nominal thermometer resistance at temperature of 20 °C is 1000 and the sensitivity of the thermometer is 400m2 per °C. Part A Calculate the temperature measurement sensitivity in bridge output volts (i.e., Vout) per oC that occurs when there is a small change in the resistance of the thermometer. Part B Calculate the error of measurement sensitivity in bridge output volts (i.e., Vou) per C when there is a small change in the resistance of the thermometer and the internal resistance of the voltmeter is neglected. R, 1002 V =10V IKO IKO 10KΩ

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The unknown resistance Ru of a resistance thermometer is to be measured by a
bridge circuit of the form shown figure The nominal thermometer resistance at
temperature of 20 °C, is 1000 and the sensitivity of the thermometer is 400m2
per C.
Part A. Calculate the temperature measurement sensitivity in bridge output volts
(i.e., Vout) per C that occurs when there is a small change in the resistance of the
thermometer.
Part B
Calculate the error of measurement sensitivity in bridge output volts (i.e., Vout) per C
when| there is a small change in the resistance of the thermometer and the internal
resistance of the voltmeter is neglected.
R,
1002
Vin =10 V
IKO
IKO
10KΩ
out
Transcribed Image Text:The unknown resistance Ru of a resistance thermometer is to be measured by a bridge circuit of the form shown figure The nominal thermometer resistance at temperature of 20 °C, is 1000 and the sensitivity of the thermometer is 400m2 per C. Part A. Calculate the temperature measurement sensitivity in bridge output volts (i.e., Vout) per C that occurs when there is a small change in the resistance of the thermometer. Part B Calculate the error of measurement sensitivity in bridge output volts (i.e., Vout) per C when| there is a small change in the resistance of the thermometer and the internal resistance of the voltmeter is neglected. R, 1002 Vin =10 V IKO IKO 10KΩ out
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