Full (Wheatstone) Bridge – Bending.

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Compensates for thermal output.
Sensitive to bending loads.
Cancels axial, side and torsion loads.
Number of active arms →N=4.
Indicated output is 4x greater.

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Great video! I'm currently working on a respiratory rate sensor and the idea of a full bridge of commercial strain gauges sensor is being attempted. Do you think it is possible to detect the variation of thoraxic volume of breathing with 2 or 4 strain gauges in bridge? Also considering whether the gauges are going to be fixed on a thin metal or plastic beam for using in a chest strap.

stolfjr