计量学报Issue(4)：397-402,6.DOI:10.3969/j.issn.1000-1158.2015.04.14
激光干涉法冲击绝对校准的研究
lnvestigation of Shock Calibration Using Laser lnterferometry
摘要
Abstract
The primary shock calibration method using laser interferometry is presented,the method is based on the standard of ISO 16063-13. The characteristics of two typical shock ezciters are introduced,including generated shock waveform. After digitizing of the phase-modulated signals at the output of a homodyne or heterodyne interferometer,the time-dependent displacement is reconstructed on the basis of the principle coherent demodulation. The data processing steps can efficiently suppress deterministic and stochastic disturbing quantities. Computer simulations and ezperimental investigations proved that the peak value and the spectral components of shock pulse can be measured with ezpanded uncertainties of less than 1%(k = 2).关键词
计量学/冲击校准/绝对法/激光干涉仪/加速度计Key words
Metrology/Shock calibration/Primary method/Laser interferometry/Accelerometer分类
通用工业技术引用本文复制引用
胡红波,于梅..激光干涉法冲击绝对校准的研究[J].计量学报,2015,(4):397-402,6.
