Peel from the case to the element. Follow the readout through this conceptual model.
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Drag to rotate; pinch to zoom. With the view focused: arrow keys rotate, + / − zoom, 1–3 choose a layer, Home resets rotation and zoom. Step advances to the next layer; Reset returns to the case and default view. Layer buttons select a view directly. The page does not move on its own.
The view shows a metal beam with strain gauges and output wires.
Teaching view: The metal beam carries strain gauges and short colored wires. Peel away the surface markings to see the gauges that connect to the resistance-measuring circuit.
The metal beam carries strain gauges and wires that connect them to the readout.
Teaching view: The metal beam carries strain gauges and short colored wires. Peel away the surface markings to see the gauges that connect to the resistance-measuring circuit.
A Wheatstone bridge detects small resistance changes by comparing two voltage dividers. [Wheatstone Bridge]
An amplifier enlarges the small difference between the bridge midpoint voltages. [Wheatstone Bridge]
Teaching view: The gauges and output wires connect to an external bridge readout. The bridge compares two voltage dividers, and an amplifier increases the small voltage difference between them.
Wheatstone bridges are used with strain gauges and load cells. [Wheatstone Bridge]
A change in the sensing resistor unbalances the bridge and produces a voltage difference between its outputs. [Wheatstone Bridge]
Teaching view: Gold folded gauge paths sit on pale backings bonded to the beam. A load bends the beam slightly, stretching or compressing the attached gauges and changing their resistance. With a voltage supplied to the bridge, these resistance changes create a small voltage difference that the readout amplifies.
Explode separates the proposed layers; X-ray makes the case translucent. These are teaching views. No commercial sensor construction or wiring is specified.