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a) Explain the principle of operation of an electrical resistance strain guage

a) Explain the principle of operation of an electrical resistance strain guage

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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a) Explain the principle of operation of an electrical resistance strain guage b) As an engineer in a factory, you are supposed to construct a strain guage. List ten (10) desirable factors that your selection of grid materials will be based on. c) Show that for a balanced Wheatstone bridge circuit R1 R4 R2 R3 d) Also the output voltage of an unloaded symmetrical resistance bridge is given by the equation: V AR Vo 4 R Show that, Vo V ΔL =-X K e) A single 100V resistance strain guage having a guage factor of 2 is mounted on a steel bar and is connected into a circuit. When the steel bar is subjected to a tensile force the output voltage of unloaded bridge is 5mV. If the recommended operating current of the guage is 15mA, determine the value of the mechanical strain. ||
Transcribed Image Text:a) Explain the principle of operation of an electrical resistance strain guage b) As an engineer in a factory, you are supposed to construct a strain guage. List ten (10) desirable factors that your selection of grid materials will be based on. c) Show that for a balanced Wheatstone bridge circuit R1 R4 R2 R3 d) Also the output voltage of an unloaded symmetrical resistance bridge is given by the equation: V AR Vo 4 R Show that, Vo V ΔL =-X K e) A single 100V resistance strain guage having a guage factor of 2 is mounted on a steel bar and is connected into a circuit. When the steel bar is subjected to a tensile force the output voltage of unloaded bridge is 5mV. If the recommended operating current of the guage is 15mA, determine the value of the mechanical strain. ||
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