加速度谐波失真度对速度型地震计振动台标定的影响
详细信息 本馆镜像全文    |  推荐本文 | | 获取馆网全文
摘要
本文对加速度和速度谐波失真度进行了理论计算,并基于美国国家仪器公司研发的实验室虚拟仪器工程平台(Labview),设计出低频振动信号数字化测量系统,实现了振动台面对加速度波形、速度波形及其失真度的测量.基于该系统的实验数据与中国计量科学研究院设定的参考值偏差较小.对地震计的测试结果表明,加速度波形及其失真度对振动波形的精度描述更为严格,能有效提高地震计振动测试的准确程度.
Acceleration and velocity harmonic distortion are theoretically analyzed,and then based on laboratory virtual instrument engineering workbench(Labview for short)digital measuring system is designed for the low-frequency vibration signals.Deviation between testing data from this system and the reference value provided by National Institute of Metrology is minor.Seismometer calibration results indicate that acceleration waveform and its distortion reflect the actual condition of the shake table in a much harsher way,providing more precise information for the seismometer test on the shake table.
引文
马月辉,石彦从,王颜芳.2001.基于FFT的低频谐波失真度测试仪[J].自动化与仪器仪表,(6):30-32.
    Ma Y H,Shi Y C,Wang Y F.2001.The design of instrument of distortion measuring[J].Automation and Instrumentation,(6):30-32(in Chinese).
    魏燕定.2000.超低频标准振动台波形失真度近似解析解[J].振动与冲击,19(3):49-51.
    Wei Y D.2000.Approximate analytical solution of waveform distortion of ultra-low frequency standard vibrator[J].Journal of Vibration and Shock,19(3):49-51(in Chinese).
    魏燕定.2001.激光干涉仪测量失真正弦波形位移误差估计式[J].仪器仪表学报,22(2):199-202.
    Wei Y D.2001.Error evaluation formula of measuring harmonic distortional sine wave’s amplitude with laser interferometer[J].Chinese Journal of Scientific Instrument,22(2):199-202(in Chinese).
    杨巧玉,舒毓龙.2011.低频标准振动台失真度及测量[J].世界地震工程,27(2):185-189.
    Yang Q Y,Shu Y L.2011.Distortion of low frequency standard vibration table and measurement methods[J].WorldEarthquake Engineering,27(2):185-189(in Chinese).
    于梅.2007.低频超低频振动计量技术的研究与展望[J].振动与冲击,26(11):83-86.
    Yu M.2007.Research prospects of metrology technology for low-frequency and super low-frequency vibration[J].Journal of Vibration and Shock,26(11):83-86(in Chinese).
    于梅,刘爱东,何闻,杨丽峰,胡红波,左爱斌,马明德.2011.石英挠性加速度计在超低频振动国家基准研制中的应用研究[J].计量学报,32(3):253-257.
    Yu M,Liu A D,Hen W,Yang L F,Hu H B,Zuo A B,Ma M D.2011.Application of the quartz-flexure accelerometerto the development of ultra-low frequency vibration national primary standard device[J].Acta Metrologica Sinica,32(3):253-257(in Chinese).
    中国地震局监测预报司.2003.数字地震观测技术[M].北京:地震出版社:51-53.
    Department of Earthquake Monitoring and Prediction,China Earthquake Administration.2003.Technical Specificationfor Digital Observation of Earthquakes[M].Beijing:Seismological Press:51-53(in Chinese).
    中国计量科学研究院.1995.GB/T13823.11—1995.振动与冲击传感器的校准方法:激光干涉法低频振动一次校准[S].北京:中国计量出版社:1-3.
    National Institute of Metrology.1995.GB/T13823.11—1995.Methods for the Calibration of Vibration and ShockPick-ups:Primary Vibration Calibration by Laser Interferometry at Low Frequencies[S].Beijing:China Metrology Publishing House:1-3(in Chinese).
    International Organization for Standardization of Switzerland.1999.ISO 16063.11—1999.Methods for the Calibrationof Vibration and Shock Transducers.PartⅡ:Primary Vibration Calibration by Laser Interferometry[S].Geneva:Internationel Organization for Standardization:1-2.

版权所有:© 2023 中国地质图书馆 中国地质调查局地学文献中心