A strain gauge is a sensor that measures strain on an object by converting mechanical deformation into electrical resistance changes.
| Parameter | Typical range | Notes & selection driver |
|---|---|---|
| Accuracy | ±0.5% | |
| Resistance | 120 Ω, 350 Ω, 1000 Ω | |
| Gauge Factor | 2.0 ± 0.5 | |
| Strain Range | ±5000 με | |
| Temperature Range | -30°C to +80°C | |
| Excitation Voltage | 5-10 V DC |
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This component is used in the following industrial products
A transducer that converts force or weight into an electrical signal for measurement.
A transducer that converts force or weight into an electrical signal for measurement.
The core component within a pressure sensor/transmitter that directly converts applied pressure into a measurable physical change.
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In a load cell, strain gauges are bonded to a deformable element (like a beam or diaphragm). When force is applied, the element deforms, causing strain gauges to change resistance. This is measured via a Wheatstone bridge to calculate the applied force.
Common applications include load cells for weighing systems, pressure transducers, torque sensors, structural health monitoring, and material testing in manufacturing, aerospace, and automotive industries.
Calibration involves applying known forces or strains to the gauge and measuring output signals. It requires controlled environments, reference standards, and often follows ISO 376 or similar protocols for load cells.
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