| 941B型超低频测振仪的研究 |
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| 引用本文： | 杨巧玉,娄良琼,杨立志. 941B型超低频测振仪的研究[J]. 地震工程与工程振动, 2005, 25(4): 174-179 |
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| 作者姓名： | 杨巧玉 娄良琼 杨立志 |
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| 作者单位： | 中国地震局工程力学研究所,黑龙江,哈尔滨,150080 |
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| 基金项目： | 哈尔滨市重点科技攻关项目（0014211044）;科技部技术开发研究专项基金项目（217） |
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| 摘 要： | 本文介绍了941B型超低频测振仪的原理和技术性能.将无源电路补偿技术应用于优化设计的往复式小质量摆上,实现了测量量程和低频特性的扩展,克服了回转摆式低频测振仪簧片易损、需要调零、频带较窄的缺点.该仪器不仅可用来测量地面和工程结构的超低频振动的加速度、速度和位移,而且可用于爆破、冲击等较高频的振动测量.
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| 关 键 词： | 拾振器 超低频 大位移 |
| 文章编号： | 1000-1301（2005）04-0174-06 |
| 收稿时间： | 2005-06-06 |
| 修稿时间： | 2005-06-062005-07-11 |
Model 941B ultra-low frequency vibration gauge |
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| Yang Qiaoyu,Lou Liangqiong,Yang Lizhi. Model 941B ultra-low frequency vibration gauge[J]. Earthquake Engineering and Engineering Vibration, 2005, 25(4): 174-179 |
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| Authors: | Yang Qiaoyu Lou Liangqiong Yang Lizhi |
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| Affiliation: | Institute of Engineering Mechanics, China Earthquake Administration, Harbin 150080, China |
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| Abstract: | The principle and technical capability is introduced in the paper. The passive circuitry compensation technology is applied to optimize the small mass to-and-fro pendulum, enlarge the measuring range and the low-frequency characteristic, and some shortcomings in the rotating-pendulum low-frequency sensor, such as reed being prone to damage, zero adjustment, and narrow frequency range, are overcome. The instrument not only can measure the ultra-low frequency acceleration, velocity and displacement of the ground and structures, but also can be used to measure the high frequency vibration of explosion and impact. |
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| Keywords: | vibration sensor ultra-low frequency large displacement |
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