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A strain gauge (also spelled strain gage) is a device used to measure strain on an object. Invented by Edward E. Simmons and Arthur C. Ruge in 1938, the most common type of strain gauge consists of an insulating flexible backing which supports a metallic foil pattern.
A Strain gauge is a sensor whose resistance varies with applied force; It converts force, pressure, tension, weight, etc., into a change in electrical resistance which can then be measured. When external forces are applied to a stationary object, stress and strain are the result.
Strain Gauge Definition: A strain gauge is a device that measures the deformation (strain) of an object when force is applied, through changes in electrical resistance. Working Principle: The strain gauge detects minute geometrical changes as resistance changes, which indicate the level of stress on the material.
Strain gauges are devices that are commonly used by engineers to measure the effect of external forces on an object. They measure strain directly, which can be used to indirectly determine stress, torque, pressure, deflection, and many other measurements.
Strain gauges range from the immensely simple to the fiendishly complex, but all of them are superbly useful to scientists and engineers. Let's take a closer look at how they work! Photo: This spring dynamometer measures force using strain: the more force you apply, the more the spring stretches.
Measure and transmit flow rate, pressure, and temperature of industrial gases, such as air, argon, CO2, and nitrogen, flowing through your system. Choose from our selection of strain gauges, including over 900 products in a wide range of styles and sizes. In stock and ready to ship.
Strain is commonly measured by a strain gage (sometimes written as “strain gauge”). A strain gage works by measuring its electrical resistance on the object subjected to an axial, bending, shear, or torsional force.
A strain gauge is designed to measure the strain amount by using the principle that the resistance changes with the expansion/contraction of the strain gauge. Then, how does the gauge detect that change in the resistance? Here, let’s dig a little deeper into strain measurement.
A strain gauge is a sensor whose measured electrical resistance varies with changes in strain. Strain is the deformation or displacement of material that results from an applied stress. Stress is the force applied to a material, divided by the material’s cross-sectional area.
This article describes the basic principles of strain measurement by means of strain gauges, from the strain itself via the variation in resistance to the eventual electrical signal, and compares the magnitude of error of the voltage-fed bridge circuit and the current-fed circuit.