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ZHAO SONGNIAN, XIONG XIAOYUN. 1987: AN INTERFERENCE- IMMUNE TRIGGER CIRCUIT FOR STRONG-MOTION RECORDING IN EARTHQUAKE ENGINEERING. Acta Seismologica Sinica, 9(2): 217-224.
Citation: ZHAO SONGNIAN, XIONG XIAOYUN. 1987: AN INTERFERENCE- IMMUNE TRIGGER CIRCUIT FOR STRONG-MOTION RECORDING IN EARTHQUAKE ENGINEERING. Acta Seismologica Sinica, 9(2): 217-224.
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AN INTERFERENCE- IMMUNE TRIGGER CIRCUIT FOR STRONG-MOTION RECORDING IN EARTHQUAKE ENGINEERING

  • Seismological Instrument Works, State Seismological Bureau

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  • Published Date: September 01, 2011
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  • Strong-motion data are essential to earthquake engineering studies. Recorders for strong-motion usually work in the triggering mode. Various types of such recorders e.g., the PDR-1, PDR-2; PDR-100, PDR-200; GQ-Ⅱ, Ⅲ and the QZ-2A are now in use, and seismic displacement, velocity, or acceleration signals have been used as trigger signals. But the chief difficulty encountered is how to make the triggering action immune to various kinds of interference so as to keep missing triggers and false triggers to a minimum. This paper describes an interference-immune trigger circuit. It is now in use in the GQ-Ⅱ and QZ-2A strong-motion recorders which have been tested in the field. Simulation interference tests show that the rates of both missing triggers and false triggers are below one percent.
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  • [1] M·许华兹,L.肖,信号处理—离散频谱分析、检测和估计,169——174,科学出版社,1982.

    [2] 许树声,信号检测与估计,32——43,国防工业出版社,1985.

    [3] 赵松年、于允贤,信号分析与遥测技术,152——167地震出版社,1983.

    [4] 谢礼立、于双久,强震观测与分析原理,65——72}地震出版社,1982.

    [5] Iwan, W. D., Strong——motion earthquake instrument arrays, Proceedings of the International workshop on Strong——Motion Earthquake Instrument Arrays, 9——11 May 2——5, Honolulu, Hawaii, 1978.

    [6] Anstey, N. A. ed., Signal characteristics and instrument specifications, 2 edit, Seismic Prospecting Inrtruments, 1, 105——137. Gebriider, Borntraeger, 1981.

    [7] Evenden, B. S. and D. R. Stone, ed., Instrument Performance and Testing. Seismic Prospecting Instruments,2, 58——91, Gebruder, Borntraeger, 1981.

    [1] M·许华兹,L.肖,信号处理—离散频谱分析、检测和估计,169——174,科学出版社,1982.

    [2] 许树声,信号检测与估计,32——43,国防工业出版社,1985.

    [3] 赵松年、于允贤,信号分析与遥测技术,152——167地震出版社,1983.

    [4] 谢礼立、于双久,强震观测与分析原理,65——72}地震出版社,1982.

    [5] Iwan, W. D., Strong——motion earthquake instrument arrays, Proceedings of the International workshop on Strong——Motion Earthquake Instrument Arrays, 9——11 May 2——5, Honolulu, Hawaii, 1978.

    [6] Anstey, N. A. ed., Signal characteristics and instrument specifications, 2 edit, Seismic Prospecting Inrtruments, 1, 105——137. Gebriider, Borntraeger, 1981.

    [7] Evenden, B. S. and D. R. Stone, ed., Instrument Performance and Testing. Seismic Prospecting Instruments,2, 58——91, Gebruder, Borntraeger, 1981.
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