Strain Gauge Theory – Types, formulas and applications
Fig. 1. Block system measuring the load cell amplifier powered by AC voltage. Where: G – voltage generator, R1, R2, R3, R4 – foil strain gauge, R5 – bridge balancing resistor, WS – selector signal amplifier, PF – phaser, rectifier, FD – low pass filter, W – resistance measurement.. Electrical strain gauges are based on the principle of …
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