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)
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Author:Robert L. Boylestad
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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.
||](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Ff28d83e6-55a2-4780-9c9f-6528ecbd6505%2F11ca2194-897e-41dd-afbb-546b61d51320%2F2385fz_processed.jpeg&w=3840&q=75)
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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