【摘要】 波形失真度是衡量标准振动台技术性能的一个重要指标,为了规范它的测量方法及所用仪器,对低频标准振动台的低频失真度进行了分析,对失真度测量方法进行了实验研究,提出了低频失真度的表述方法及合格界限。经大量的实验验证,提供了失真度的测量方法及所用仪器。为低频标准振动台技术指标检定规程的制定、规范失真度的测试方法提供了参考依据。更多还原

【Abstract】 Waveform distortion is an important performance index of the standard vibration table.For standardizing measurement methods and instruments used in the testing,low-frequency distortion of the low-frequency vibration table is analyzed and distortion measurement methods are studied in experiment.The qualified limit description of the low-frequency distortion is proposed,and many experiments were done for testing the distortion measurement methods and the used instruments.The results provide reference for the low-frequency standard vibration table technical specifications,testing procedures and normalising distortion test method.更多还原