A strain gauge is a sensor made of a conductive element whose resistance or more rarely capacitance or inductance varies with the applied forceMore precisely their resistance is affected by the strain

应变计是一种传感器，由一个导电元件制成，其电阻（或更少见的电容或电感）随着施加力的变化而变化。更准确地说，它们的电阻受应力（机械变形）的影响，这种现象也称为压阻效应。

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