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The Resistance Strain Gauge
MEMORANDUM
Date: 09/18/2019
To:
From:
Subject: Strain Gage
Summary
This lab will perform the calculation of value of strain from the deflection obtained during
the experiment. This experiment utilized the metallic strain gauge and a strain indicator together
with a beam. The strain gauges were assembled on a certain location. The digital was associated
with the switcher with the strain measured on the specimen. The voltage values were recorded and it
would be used to calculate the strain. Evaluating the graphs outputs if the experiment is accurately
done and providing future recommendation for better accuracy of the experiment. The gauge factor,
is the change in resistance for a given value of strain (ε), as gauge factor is assumed to be equal to
the experiment.
Page 1 of 13
The Resistance Strain Gauge
Nomenclature
Symbols
Name
σ
stress
p
Load
A
area
ε
strain
δ
defledction
E
Young Modulus of Elasticity
L
Original length
m
Suspended mass
g
Accelaration due to gravity
d
Load to gauge distabce
Page 2 of 13
The Resistance Strain Gauge
Table of Contents
Nomenclature ........................................................................................................................................ 2
List of tables.......................................................................................................................................... 3
List of figures ........................................................................................................................................ 3
Introduction ........................................................................................................................................... 4
Experimental Setup ............................................................................................................................... 5
Results and calculations ........................................................................................................................ 8
Results .............................................................................................................................................. 8
Calculations.................................................................................................................................... 10
Conclusion and recommendation .............................