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As Universal Aids To Experimental Stress And StrainAnalysis, Strain Gauges Enable Mechanical Strain To Be Converted IntoElectrical Signals. The Signal Obtained Is Processed By A Strain MeasuringAmplifier To Give A Display Of The Resulting Strain. It Is Expected That TheQuantity Measured By A Measuring Device And The Readout Subsequently IndicatedAre Identical. Consequently, The Planning And Evaluation Of Measurements MakesAllowance For The Sensitivity To Elongation (Gauge Factor) Of Strain Gauges. AKey Character Value Of Strain Gauges. The Gauge Factor Indicates The Correlation Between The StrainAnd The Change In Resistance.