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Strain Gage

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Strain gages have another spelling that is commonly known; strain gauges. This load cell sensor type may vary in construction and measurement method. The most popular type is foil that is adhered to the object. Other kinds include semiconductor, bonded metallic wire, and carbon resistive. Read More…

Strain Gage A strain gage is a simple measuring system that determines the amount of strain, which is the displacement and deformation that results from an object under stress. It measures mechanical quantities by converting tension, force and pressure into an electrical signal.
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Leading Manufacturers

West Conshohocken, PA  |  610-825-3310

Our load cells are manufactured with the highest attention to detail at all stages. Whether it is through the design stage, engineering stage, or through hundreds of tests run daily, we ensure that our products outshine all competitor products.

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Strainsert Company $$$

Apex, NC  |  919-772-0115

We supply Multi-Axis Force/Torque Sensors. Our F/T Sensors measure all six components of force and torque. ATI F/T transducers use silicon strain gauges for low-noise and high overload protection.

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ATI Industrial Automation, Inc. $$$

Shelby Township, MI  |  586-739-4254

Founded in 1992, SensorData Technologies, Inc. is a manufacturer of custom designed Torque and Force Sensors. SD was founded to re-address the marketplace need for applying the measurement device to the engineer's test. SensorData has provided a number of measurement products to a wide variety of industries ranging from multi-axis sensors to measure tire geometry, to multi-component sensors.

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SensorData Technologies, Inc. $$$

Cincinnati, OH  |  513-874-7326

At TyTek Industries we manufacture load cells to suit all capabilities. Our expertise has provided insight and load cell solutions for a range of customers and industries. Our engineering team’s philosophy ensures we do everything humanly and technologically possible to match your requirements with quality, cost and delivery. We’re here to help you carry the load.

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TyTek Industries $$$

Hampton, VA  |  800-522-6752

Measurement Specialties’ broad range of industrial load cells and force sensors feature Microfused™ technology, offering OEMs low cost and high reliability, plus packaged load cells for high performance or unique packaging, and Piezo Film for a reliable way to measure dynamic impact force up to thousands of pounds. Customization is offered for high volume OEM applications.

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Measurement Specialties, Inc. $$$

South Boston, MA  |  800-248-3669

Tekscan is a designer and manufacturer of force sensors. Our basic force sensor can be used for an array of applications. We also design load cell systems for specific needs. We offer a large selection of shapes and sizes of force sensors and complete load cell systems.

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Tekscan, Inc. $$$

Norwood, MA  |  781-298-2200

We offer standard tension, standard compression, hollow tension/compression and many other types of load cells for your convenience of choice. Each of our load cells is designed to meet ASTM specifications and our customers' requirements to further ensure the exact product for you! All of our products are put through extensive testing before leaving our state of the art facilities to ensure the best products possible. To learn more visit our website today!

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BLH Nobel $$$
placeholder image Strainsert Company ATI Industrial Automation, Inc. SensorData Technologies, Inc. TyTek Industries Measurement Specialties, Inc. Tekscan, Inc. BLH Nobel

When measuring the strain of an object, the temperature, material properties, the type of adhesive that bonds the gage to the object's surface and the stability of the metal all affect the resistance.

Strain gages are used to detect cracking in machinery parts, as crack propagation, as an extensometer, to measure temperature, to measure residual stress, to gage shear modulus and as a transducer. It is a vital part of a load cell, which is a measuring device concerned with identifying and measuring compression, tension, and shear forces.

Another product that does the same thing and also makes use of strain gages is the force transducer, which is like a load cell except a more complicated system that is able to do the same thing plus measure a couple other aspects of an object as well. Industries that utilize these products include construction, general manufacturing, automotive, aerospace, and robotics.

There are three main types of strains that are measured by strain gages. Poisson strain is the thinning and elongation that occurs when a bar is strained. Bending strain is determined by measuring the relationship between the force and the amount of bending, which results from a twisting action. Shearing strain occurs when stress causes angular distortion of the object being measured.

The most common type of strain gage, made of foil and adhesive, has an insulating and flexible backing, which supports the metallic foil pattern. It is attached to an object by adhesives. As the object deforms, so does the flexible foil. The deformation of the foil causes the electrical resistance of the foil to change which then alters the signal output of the gage. The electrical output is measured and used to quantify the strains on the object.

When a strain gage is working as part of another system, like the load cells and force transducers mentioned above, multiple strain gages are used, connected by circuits. The formation of the strain gages is called the Wheatstone bridge equation, which was developed in the early eighteen hundreds.

Strain Gage Informational Video