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Write 5 pages with APA style on Strain Gauge Calibration. When an electrical conductor is stretched to the limits of its elasticity ensuring that it does not break or deform on a permanent basis, it b
Write 5 pages with APA style on Strain Gauge Calibration. When an electrical conductor is stretched to the limits of its elasticity ensuring that it does not break or deform on a permanent basis, it becomes longer and narrower, changes that increase its electrical resistance end-to-end. Alternatively, when a conductor is compressed, but to an extent that it does not buckle, the effect will be only be broadening and shortening. This effect only decreases electrical resistance end-to-end. Out of the measured electrical resistance of the strain gauge, the amount of applied stress may be calculated. An ordinary strain gauge arranges a long, thin conductive strip in a zigzag pattern of parallel lines in a way that a small amount of stress in the direction of the orientation of the parallel lines results in a multiplicatively larger strain determination over the total effective length of the conductor surfaces and this is with respect to the conductive lines and therefore a multiplicatively more significant change in the resistance is noted compared to when observed with a single straight-line conductive wire. The strain gage is among the most widely used strain measurement sensors. The strain gauge is a resistive elastic unit whose change in resistance is termed as a function of applied strain (Northrop, 2005).
Among the several strain gauges, an electric resistance wire strain gage stands the privilege of lower cost and being an established product. This makes it a commonly used type of device. Other types of strain gages include the acoustic, the capacitive, the inductive, the mechanical, and the semi-conductive. A wire strain gage is constructed by a resistor, made in the metal foil form, and commonly bonded to an elastic backing. The principle of a strain gauge is based on the fact that the resistance of a wire increases with an increase in strain and decreases with a reduction in stress. The composition of the wire is a uniform conductor with parameters electric resistivity r, length l, and cross-section area A. the resistance R is a function of the geometry that is given by the formula.
