基于测量加速度微分量的传感器
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摘要
在工程振动和强地震动测量中,一般测量加速度、速度或位移。近几年的研究表明,加速度的微分量(即加加速度,单位为m/s3)与力的变化率成正比,与物理破坏过程有密切关系,在现代技术的发展中有着很多应用,如高动态运动飞行器的跟踪测量、结构抗震新机理研究、高速机械加工的自动控制、高速列车和电梯舒适度的测量、通信设备的抗震性能检测均需要加加速度参量的测量,加加速度的精确测量和加加速度计的研制愈来愈引起工程界的重视。介绍了能测量加速度微分量传感器(又称加加速度计)的结构原理、技术性能、校准结果和地震波实测比对结果,实验结果证明,传感器具有良好的性能。该传感器已在结构抗震实验中得到了应用,取得了理想的结果。
In recent years,researches indicate that the derivative of acceleration(jerk,m/s3),which is directly proportional to the force changing rate,has close relation with the physical destruction process and can be applied to many fields of modern development.The precise measurement of the jerk and research on its sensor has gained more and more attention in engineering fields.The paper introduces the principle,technical performance,calibration result and actual earthquake wave measurement results for comparision of the jerk sensor,and the experimental results prove that the sensor has good performances.The sensor has been applied in the structural earthquake resistance experiment and ideal results are obtained.
In recent years,researches indicate that the derivative of acceleration(jerk,m/s3),which is directly proportional to the force changing rate,has close relation with the physical destruction process and can be applied to many fields of modern development.The precise measurement of the jerk and research on its sensor has gained more and more attention in engineering fields.The paper introduces the principle,technical performance,calibration result and actual earthquake wave measurement results for comparision of the jerk sensor,and the experimental results prove that the sensor has good performances.The sensor has been applied in the structural earthquake resistance experiment and ideal results are obtained.
引文
[1]Tadanobu Sato et al.Enhancement of Earthquake Performance of Infrastructures Based on Investigation into Fracturing Process,EEPI,Kyoto University,March2002.
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[3]Lee G C,Tong M,Tao R.Temporal Characteristics of Chi-Chi Earthquake Ground Motions and Their Possible Implications on Structural Damages.In C.H.Loh and W.I.Liao(eds.)[J].Proceedings of International Workshop on Annual Commemora-tion of Chi-Chi Earthquake,Volume II.Technology Aspect,September18—20,2000.Taipei,Taiwan,R.O.C.
[4]张庙康,胡海岩.车辆悬架振动控制系统研究的进展[J].振动、测试与诊断,1997,17(1):7—15.
[5]朱庆和.用于机动目标跟踪和预测的闭环统的设计[J].情报指挥系统与仿真技术,2003(1),37—46.
[6]杨学山.工程振动测量仪器和测试技术[M].北京:中国计量出版社,2001.
[2]Tong M,Lee G C.3D Temporal Characteristics of Earthquake Ground Motion at a Single Point[J].Journal of Engineering Mechanics,ASCE,.1999,125(10).
[3]Lee G C,Tong M,Tao R.Temporal Characteristics of Chi-Chi Earthquake Ground Motions and Their Possible Implications on Structural Damages.In C.H.Loh and W.I.Liao(eds.)[J].Proceedings of International Workshop on Annual Commemora-tion of Chi-Chi Earthquake,Volume II.Technology Aspect,September18—20,2000.Taipei,Taiwan,R.O.C.
[4]张庙康,胡海岩.车辆悬架振动控制系统研究的进展[J].振动、测试与诊断,1997,17(1):7—15.
[5]朱庆和.用于机动目标跟踪和预测的闭环统的设计[J].情报指挥系统与仿真技术,2003(1),37—46.
[6]杨学山.工程振动测量仪器和测试技术[M].北京:中国计量出版社,2001.
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