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现在应用的测力机构测量精度是低的,特别是在较高的变形速度(至500毫米/分)和大延伸率时(至300%)。如摆锤测力机构在大变形速度时,由于摆锤惯性引起的测量误差达到15%[1]。此
The force measurement mechanism currently used is low in measurement accuracy, especially at high deformation speeds (up to 500 mm / min) and large elongations (up to 300%). Such as pendulum force measurement mechanism at large deformation speed, due to pendulum inertial measurement error caused by 15% [1]. this