地震传感器的量值溯源方法
|
摘要
地震传感器在地震学研究与防震减灾领域应用广泛,数量众多,将其测量量值溯源到国际单位,能够保证测量结果准确和统一。文中对地震传感器测量量值进行量值溯源的必要性进行了叙述,说明了地震传感器的量值单位与国际标准单位的关系。对地震传感器量值溯源的途径以及与校准之间的联系进行了阐述。以力平衡加速度计为例对地震传感器的工作原理进行了说明。参照有关的国际标准,研究了基于正弦逼近法的地震传感器绝对法校准的技术要求,并给出了量值溯源框图,为建立地震传感器的量值溯源体系提供了技术依据。最后对低频振动校准的技术发展方向也作了阐述。
Large number of seismic sensors are applied and used widely in seismology research and earthquake disaster prevention.In order to ensure the precieness and unity of measurement results,the measuring value shall be traced to international system of units(SI).The necessity of traceability for measurement result of seismic meters is described in this paper.The relationships between value units of seismic meters and international system of units are explained.The connections of traceability approach for seismic meters and calibrations are elaborated.Working principle of seismic meters was described in example of force balance accelerometer.Refering to the concerning inernation standards,technical requirements for absolute calibration of seismic meters based on sine-approximation method are researched.A traceability block diagram is given in this paper.All the research provides a technology basis for seismic sensors value traceability system.In the final,the direction for technical development of low frequency vibration calibration is elaborated also.
Large number of seismic sensors are applied and used widely in seismology research and earthquake disaster prevention.In order to ensure the precieness and unity of measurement results,the measuring value shall be traced to international system of units(SI).The necessity of traceability for measurement result of seismic meters is described in this paper.The relationships between value units of seismic meters and international system of units are explained.The connections of traceability approach for seismic meters and calibrations are elaborated.Working principle of seismic meters was described in example of force balance accelerometer.Refering to the concerning inernation standards,technical requirements for absolute calibration of seismic meters based on sine-approximation method are researched.A traceability block diagram is given in this paper.All the research provides a technology basis for seismic sensors value traceability system.In the final,the direction for technical development of low frequency vibration calibration is elaborated also.
引文
[1]ISO/IEC 17025:2005 General Requirements for the Competence of Testing and Calibration Laboratories[S].
[2]DB/T 3-2003地震及地震前兆测项分类与代码[S].DB/T 3-2003 Earthquake and Earthquake Precursor Test Items and Codes[S].
[3]ISO 16063-11:1999.Methods for the Calibration of Vibration and Shock Transducers-Part 11:Primary Vibration Calibration by Laser Interferom-etry[S].
[4]于梅,孙桥.正弦逼近法振动传感器幅相特性测量技术的研究[J].北京:计量学报,2004,25(4):344-348.YU Mei,SUN Qiao.A Study of application of the sine-approximation method to the prima vibration calibration[J].Acta Metrologica Sinica,2004,25(4):344-348.
[5]于梅.0.1Hz～50kHz直线振动幅值和相位国家计量基准系统的研究[J].振动与冲击,2007,25(7):54-58.YU Mei.Research on national metrology standard of attitude and phase of 0.1Hz～50kHz linear vibration[J].Vibration and Shock,2007,25(7):54-58.
[2]DB/T 3-2003地震及地震前兆测项分类与代码[S].DB/T 3-2003 Earthquake and Earthquake Precursor Test Items and Codes[S].
[3]ISO 16063-11:1999.Methods for the Calibration of Vibration and Shock Transducers-Part 11:Primary Vibration Calibration by Laser Interferom-etry[S].
[4]于梅,孙桥.正弦逼近法振动传感器幅相特性测量技术的研究[J].北京:计量学报,2004,25(4):344-348.YU Mei,SUN Qiao.A Study of application of the sine-approximation method to the prima vibration calibration[J].Acta Metrologica Sinica,2004,25(4):344-348.
[5]于梅.0.1Hz～50kHz直线振动幅值和相位国家计量基准系统的研究[J].振动与冲击,2007,25(7):54-58.YU Mei.Research on national metrology standard of attitude and phase of 0.1Hz～50kHz linear vibration[J].Vibration and Shock,2007,25(7):54-58.
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