Assuming that r1 r2 show that the ratio of input to output


A) With the aid of well labeled schematic diagrams, differentiate between the bridge completion using connection of half-bridge and bridge balancing using offset-nulling strain gauge circuits for signal conditioning

B) For bending beam application with one bridge mounted in tension (RG + ΔR) and the other mounted in compression (RG - ΔR) as shown in Fig.1: Question 1A. Assuming that R1 = R2; show that the ratio of input to output strain gauge voltages is directly proportional to gauge factor (GF).

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       Fig.1: Question 1A          

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