A cost-effective voice coil motor-based portable micro-indentation device for in situ testing
作者： Guangjian Peng , Fenglei Xu , Jianfeng Chen , Yahao Hu , Huadong Wang
DOI: 10.1016/J.MEASUREMENT.2020.108105
关键词: Eddy current 、 Mechanical engineering 、 Accuracy and precision 、 Indentation 、 Voice coil 、 Displacement (vector) 、 Micro indentation 、 Materials science 、 Load cell 、 Instrumentation (computer programming) 、 Electrical and Electronic Engineering 、 Applied mathematics 、 Condensed matter physics
摘要: Abstract To evaluate the mechanical properties of structures in service, a portable micro-indentation device was developed and built. The basic design principle indentation device, i.e. measurement depth force with sufficient accuracy, discussed. avoid using load cell to decrease machine compliance, new method that current through voice coil motor calculate proposed. After analyzing equivalent model an eddy displacement sensor installed on improve accuracy depth. Indentation tests were performed polymethylmethacrylate (PMMA) unplasticized polyvinyl chloride (UPVC) commercial ZHU2.5 demonstrate validity device.
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