- 3) A WB is used with a sensor located 100 m away. The bridge is not lead compensated, and the cable to the sensor has a resistance of 0.45 2/ ft. The bridge nulls with R₁ = 3400 £2, R2 = 3445 92, and R3 1560 2. What is the sensor resistance? (1 ft = 0.3048 m)

Electricity for Refrigeration, Heating, and Air Conditioning (MindTap Course List)
10th Edition
ISBN:9781337399128
Author:Russell E. Smith
Publisher:Russell E. Smith
Chapter17: Commercial And Industrial Air-conditioning Control Systems
Section: Chapter Questions
Problem 24RQ
Question
-
3) A WB is used with a sensor located 100 m away. The bridge is
not lead compensated, and the cable to the sensor has a resistance
of 0.45 2/ ft. The bridge nulls with R₁ = 3400 £2, R2 = 3445 92, and
R3 1560 2. What is the sensor resistance? (1 ft = 0.3048 m)
Transcribed Image Text:- 3) A WB is used with a sensor located 100 m away. The bridge is not lead compensated, and the cable to the sensor has a resistance of 0.45 2/ ft. The bridge nulls with R₁ = 3400 £2, R2 = 3445 92, and R3 1560 2. What is the sensor resistance? (1 ft = 0.3048 m)
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