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3.10 A diaphragm pressure gauge employs four strain gauges to monitor the displacement of the diaphragm. The four active gauges form the arms of a Wheatstone bridge, in the way shown in Figure 3.23. The gauges have a gauge factor of 2.1 and resistance 120 2. A differential pressure applied to the diaphragm results in two of the gauges on one side of the diaphragm being subject to a tensile strain of 1.0x 10-5 and the two on the other side a compressive strain of 1.0x 10-5. The supply voltage for the bridge is 10 V. What will be the voltage output from the bridge?

3.10 A diaphragm pressure gauge employs four strain gauges to monitor the displacement of the diaphragm. The four active gauges form the arms of a Wheatstone bridge, in the way shown in Figure 3.23. The gauges have a gauge factor of 2.1 and resistance 120 2. A differential pressure applied to the diaphragm results in two of the gauges on one side of the diaphragm being subject to a tensile strain of 1.0x 10-5 and the two on the other side a compressive strain of 1.0x 10-5. The supply voltage for the bridge is 10 V. What will be the voltage output from the bridge?

Introductory Circuit Analysis (13th Edition)
Introductory Circuit Analysis (13th Edition)
13th Edition
ISBN:9780133923605
Author:Robert L. Boylestad
Publisher:Robert L. Boylestad
Chapter1: Introduction
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3.10 A diaphragm pressure gauge employs four strain gauges to monitor the displacement of the diaphragm. The four active gauges form the arms of a Wheatstone bridge, in the way shown in Figure 3.23. The gauges have a gauge factor of 2.1 and resistance 120 2. A differential pressure applied to the diaphragm results in two of the gauges on one side of the diaphragm being subject to a tensile strain of 1.0× 10-5 and the two on the other side a compressive strain of 1.0x 10-5. The supply voltage for the bridge is 10 V. What will be the voltage output from the bridge? In In Figure 3.23 Compensation with strain gauges: (a) use of dummy gauge, (b) four active arm bridge. Active tension compression gauge R, R2 R1 R2 Output V. Output R R4 R3 Dummy In In gauge compression tension In In tension compression (a) (b)
Transcribed Image Text:3.10 A diaphragm pressure gauge employs four strain gauges to monitor the displacement of the diaphragm. The four active gauges form the arms of a Wheatstone bridge, in the way shown in Figure 3.23. The gauges have a gauge factor of 2.1 and resistance 120 2. A differential pressure applied to the diaphragm results in two of the gauges on one side of the diaphragm being subject to a tensile strain of 1.0× 10-5 and the two on the other side a compressive strain of 1.0x 10-5. The supply voltage for the bridge is 10 V. What will be the voltage output from the bridge? In In Figure 3.23 Compensation with strain gauges: (a) use of dummy gauge, (b) four active arm bridge. Active tension compression gauge R, R2 R1 R2 Output V. Output R R4 R3 Dummy In In gauge compression tension In In tension compression (a) (b)
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