【摘要】 研究了用PVDF压电薄膜进行动态应变测量的原理和方法,在单向应变块上对两种PVDF应变片的应变电荷常数进行了标定,并对一维应力杆中的应变波形进行了测量。实验给出了较好的测量精度。研究结果表明,PVDF应变片在动态应变测量中具有很好的应用潜力。更多还原

【Abstract】 The principle and the method of dynamic strain measurement with PVDF piezoelectric film were investigated. The straincharge constants of two PVDF strain gauges were calibrated with a unidirectional strain block. The strain waves in a uniaxial stress bar were measured with these gauges. Experimental results of good precision were obtained.更多还原