低频标准振动台失真度及测量
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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。
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.
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.
引文
[1]ISO16063-11.1999,Methods for the Calibration of Vibration and Shock Transducers-Part11:Primary Vibration Calibration by Laser Interferome-ter[S].
[2]GB/T13823.2-92振动与冲击传感器的校准方法激光干涉法绝对校准(一次校准)[S].GB/T13823.2-92 Methods for the Calibration of Vibration and Shock Transducers-Part11:Primary Vibration Calibration by Laser Interferometer[S].
[3]JJG298-2005中频标准振动台[S].JJG298-2005 Standard Vibrator in Middle Frequency Band[S].
[4]JJG 233-2008压电加速度计[S].JJG 233-2008 Piezoelectric Accelerometer[S].
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[6]杨学山.工程振动测量和测试技术[M].北京:中国计量出版社,2001.YANG Xueshan.Engineering vibration measuring instruments and testing technology[M].Beijing:China Metrology Publishing House,2001.
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[10]JJG1059-1999测量不确定度评定与表示[S].JJG1059-1999 Evaluation and Expression of Uncertainty in Measurement[S].
[2]GB/T13823.2-92振动与冲击传感器的校准方法激光干涉法绝对校准(一次校准)[S].GB/T13823.2-92 Methods for the Calibration of Vibration and Shock Transducers-Part11:Primary Vibration Calibration by Laser Interferometer[S].
[3]JJG298-2005中频标准振动台[S].JJG298-2005 Standard Vibrator in Middle Frequency Band[S].
[4]JJG 233-2008压电加速度计[S].JJG 233-2008 Piezoelectric Accelerometer[S].
[5]杨巧玉,舒毓龙.低频标准振动台技术指标测试方法探讨[J].世界地震工程,2008,24(2):97-101.YANG Qiaoyu,SHUYulong.Discussion on measurement methods for specifications of low frequency calibration shaking table[J].World Earth-quake Engineering,2008,24(2):97-101.
[6]杨学山.工程振动测量和测试技术[M].北京:中国计量出版社,2001.YANG Xueshan.Engineering vibration measuring instruments and testing technology[M].Beijing:China Metrology Publishing House,2001.
[7]杨巧玉,舒毓龙.宽频带超低频标准振动台的研究[J].世界地震工程2009,25(3):140-144.YANG Qiaoyu,SHUYulong.Research and development on low-frequency standard vibration table with broad bank[J].World Earthquake Engi-neering.2009,25(3):140-144.
[8]应怀樵.振动测试与分析[M].北京:中国铁道出版社,1987.YING Huaiqiao.Vibration measurement and analysis[M].Beijing:China Railway Publishing House,1987.
[9]舒毓龙,孙耀东.高精度低频振动台和伺服隔振[J].地震工程与工程振动,1998,18(4):131-136.SHUYulong,SUNYaodong.Precise shaking table with lowfrequency and servo vibration isolation[J].Journal of Earthquake Engineering and En-gineering Vibration,1998,18(4):131-136.
[10]JJG1059-1999测量不确定度评定与表示[S].JJG1059-1999 Evaluation and Expression of Uncertainty in Measurement[S].
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