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📏 Strain Gauge Sensing via Wheatstone Bridge

Explore how a bonded metal-foil strain gauge converts microscopic structural deformation into a measurable electrical signal, and how the Wheatstone bridge circuit turns a tiny resistance change into a real, calculable output voltage.

Engineering & Materials3DModerate60 FPS

The simulator demonstrates how a strain gauge's real, calculable resistance change unbalances a Wheatstone bridge to produce a proportional output voltage, and how adding active gauges in half-bridge and full-bridge arrangements improves both sensitivity and rejection of temperature drift.

🔬 What It Demonstrates

🎮 How to Use

Select a bridge configuration (quarter, half, or full), apply simulated strain with the slider, and watch the bridge arms, output voltage, and computed strain update in real time. Toggle a simulated temperature change to see how each configuration handles thermal drift differently, and use the balance control to zero the bridge before loading.

💡 Did You Know?

A full-bridge configuration with four active gauges can produce roughly four times the output voltage of a single-gauge quarter-bridge for the exact same applied strain, while also giving the strongest built-in cancellation of temperature-induced errors, which is why precision load cells almost always use a full-bridge design.

⚙ Under the hood

strain gaugewheatstone bridgesensorsmechanical engineeringelectrical engineeringgauge factorinstrumentationstructural testing

3D · Three.js / WebGL renderer · 60 FPS target · runs fully client-side, no install