一种小型低频标准振动台的设计
|
摘要
本文介绍了一种低频标准振动台的设计。首先,根据国家标准和测振传感器的使用环境,确定了标准振动台的设计指标;之后,介绍了标准振动台中激振器的设计;根据设计指标,选择了相对速度反馈作为振动台的控制方法,并对该控制方法进行了详细的分析,并进行了仿真计算;最后,对振动台在开环和闭环状态下的幅频特性、失真度进行了测试,结果表明经过合理设计和控制,低频标准振动台低频运动信号质量得到了明显改善,可满足一般低频测振传感器的校准需要。
The design of a low frequency calibration shaking table is introduced in this paper. First,we confirm the design specification of low frequency calibration shaking table according to the national standard and the deployment environment of vibration sensor. Then,the design of a vibration exciter is introduced. According to the design specification,we choose the relative velocity feedback method as the control method of the shaking table. We analyze this method in detail and carry out the simulation calculation. Finally,we test the amplitude versus frequency response characteristics and distortion under the situation of open loop and closed loop. The results show that the low frequency movement signal of low frequency shaking table is improved and it can meet the requirement of the calibration of low frequency vibration sensor.
The design of a low frequency calibration shaking table is introduced in this paper. First,we confirm the design specification of low frequency calibration shaking table according to the national standard and the deployment environment of vibration sensor. Then,the design of a vibration exciter is introduced. According to the design specification,we choose the relative velocity feedback method as the control method of the shaking table. We analyze this method in detail and carry out the simulation calculation. Finally,we test the amplitude versus frequency response characteristics and distortion under the situation of open loop and closed loop. The results show that the low frequency movement signal of low frequency shaking table is improved and it can meet the requirement of the calibration of low frequency vibration sensor.
引文
[1]周朝晖.2008年四川汶川8.0级地震强震动台网观测记录[J].四川地震,2008,4(129):25-29.ZHOU Chaohui.The strong ground motion recordings of the Ms8.0 Wenchuan Earthquake in Sichuan Province[J].Earthquake Research in Sichuan,2008,4(129):25-29.(in Chinese)
[2]中国地震局震害防御司编.汶川8.0级地震未校正加速度记录[M].北京;地震出版社,2008.Department of Seismic Hazard Prevention,China Earthquake Administration.Uncorrected acceleration of the Ms8.0 wenchuan earthquake[M].Beijing:Seismological Press,2008.(in Chinese)
[3]田裕鹏,姚恩涛,李开宇.传感器原理[M].北京:科学出版社,2007,9:170-171.TIAN Yupeng,YAO Entao,LI Kaiyu.Principle of sensor[M].Beijing:Science Press,2007,9:170-171.(in Chinese)
[4]袁希光.传感器技术手册[M].北京:国防工业出版社,1986,12:650-663.YUAN Xiguang.Technical manual of sensor[M].Beijing:National Defense Industry Press,1986,12:650-663.(in Chinese)
[5]梁志国,朱济杰,孙璟宇.正弦信号源波形失真的一种精确评价方法[J].计量学报,2003,24(2):144-148.LIANG Zhiguo,ZHU Jijie,SUN Jingyu.A precise evaluation method for the distortion of sinusoidal sources[J].Acta Metrologica Sinica,2003,24(2):144-148.(in Chinese)
[6]袁晓峰,许化龙,陈淑红,等.正弦信号失真度测量方法评述[J].航空计测技术,2004,24(1):1-3,6.YUAN Xiaofeng,XU Hualong,CHEN Shuhong,et al.Comment on measurement methods of sinusoidal signal distorted degree[J].Aviation Metrology&Measurement Technology.2004,24(1):1-3,6.(in Chinese)
[7]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,SHU Yulong.Discussion on measurement methods for specification of low frequency calibration shaking table[J].World Earthquake Engineering,2008,24(2):97-101.(in Chinese)
[2]中国地震局震害防御司编.汶川8.0级地震未校正加速度记录[M].北京;地震出版社,2008.Department of Seismic Hazard Prevention,China Earthquake Administration.Uncorrected acceleration of the Ms8.0 wenchuan earthquake[M].Beijing:Seismological Press,2008.(in Chinese)
[3]田裕鹏,姚恩涛,李开宇.传感器原理[M].北京:科学出版社,2007,9:170-171.TIAN Yupeng,YAO Entao,LI Kaiyu.Principle of sensor[M].Beijing:Science Press,2007,9:170-171.(in Chinese)
[4]袁希光.传感器技术手册[M].北京:国防工业出版社,1986,12:650-663.YUAN Xiguang.Technical manual of sensor[M].Beijing:National Defense Industry Press,1986,12:650-663.(in Chinese)
[5]梁志国,朱济杰,孙璟宇.正弦信号源波形失真的一种精确评价方法[J].计量学报,2003,24(2):144-148.LIANG Zhiguo,ZHU Jijie,SUN Jingyu.A precise evaluation method for the distortion of sinusoidal sources[J].Acta Metrologica Sinica,2003,24(2):144-148.(in Chinese)
[6]袁晓峰,许化龙,陈淑红,等.正弦信号失真度测量方法评述[J].航空计测技术,2004,24(1):1-3,6.YUAN Xiaofeng,XU Hualong,CHEN Shuhong,et al.Comment on measurement methods of sinusoidal signal distorted degree[J].Aviation Metrology&Measurement Technology.2004,24(1):1-3,6.(in Chinese)
[7]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,SHU Yulong.Discussion on measurement methods for specification of low frequency calibration shaking table[J].World Earthquake Engineering,2008,24(2):97-101.(in Chinese)
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