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9.16 Figure Prob. 16 shows a four-lead bridge circuit; R. is the resistance of the leads connecting the sensor to the bridge circuit. Show that E, = V5(Ro/R3)aT, i.e. the bridge output voltage is unaffected by changes in R..

9.16 Figure Prob. 16 shows a four-lead bridge circuit; R. is the resistance of the leads connecting the sensor to the bridge circuit. Show that E, = V5(Ro/R3)aT, i.e. the bridge output voltage is unaffected by changes in R..

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Figure Prob. 16 shows a four-lead bridge circuit; R̟ is the resistance of the leads connecting the sensor to the bridge circuit. Show that E, = Vs(Ro/R3)aT, i.e. the bridge output voltage is unaffected by changes in R. 9.16 R. Figure Prob. 16. R3 R. ww Dummy leads R. ww R7= Ro(1 + aT') Ro R3 = R4 ETh R3, R4 > Ro + 2RC RT Re R4 Sensor leads Bridge circuit Resistance sensor in control room Vs on plant
Transcribed Image Text:Figure Prob. 16 shows a four-lead bridge circuit; R̟ is the resistance of the leads connecting the sensor to the bridge circuit. Show that E, = Vs(Ro/R3)aT, i.e. the bridge output voltage is unaffected by changes in R. 9.16 R. Figure Prob. 16. R3 R. ww Dummy leads R. ww R7= Ro(1 + aT') Ro R3 = R4 ETh R3, R4 > Ro + 2RC RT Re R4 Sensor leads Bridge circuit Resistance sensor in control room Vs on plant
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