Q1) The strain measurement device uses the circuit shown in Figure 1. The strain gauges G1 and G2 both have (10000) and gauge factor (2). The feedback resistance between the node A and B should be 70kn. Compute the output voltage at node B when the strain at G1 have the following values (50, 100, 250, 400, 60) ɛ and plot the computed voltage against the strain. 6.79 Balance 100k 22% Gain 10k G2 47K Figure 1 22% 10 0 8 00100 E Analogue output Ov

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Q1) The strain measurement device uses the circuit shown in Figure 1. The strain gauges G1 and G2
both have (10000) and gauge factor (2). The feedback resistance between the node A and B should be
70kn. Compute the output voltage at node B when the strain at G1 have the following values (50, 100,
250, 400, 60) ɛ and plot the computed voltage against the strain.
6.79
Balance
100k
22%
Gain
10k
G2
47K
Figure 1
22%
10
0
8
00100
E
Analogue
output
Ov
Transcribed Image Text:Q1) The strain measurement device uses the circuit shown in Figure 1. The strain gauges G1 and G2 both have (10000) and gauge factor (2). The feedback resistance between the node A and B should be 70kn. Compute the output voltage at node B when the strain at G1 have the following values (50, 100, 250, 400, 60) ɛ and plot the computed voltage against the strain. 6.79 Balance 100k 22% Gain 10k G2 47K Figure 1 22% 10 0 8 00100 E Analogue output Ov
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