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摘要: 地震仪是地震监测中最关键的仪器,负责对地震信息进行采集和记录,其性能的好坏直接影响监测结果的可靠与否.因此,了解不同原理地震仪的性能和适用环境,对于地震数据采集和分析工作都有重要意义.本文从不同类型地震仪的原理出发,简要概括了其优缺点,以及当前的研究进展和使用现状,以便为相关科学研究和工程应用提供参考.此外,本文还简要介绍了目前本课题组正在研究的一款激光多普勒地震仪的设计原理.Abstract: Seismograph is the most key instrument for seismic monitoring responsible for acquiring and recording seismic signals so that its performance will affect the reliability of monitoring results directly. Therefor, it is extremely significant for acquisition and analysis of seismic data to master the performance and suitable environment of various seismometers with different principle. Since different seismometer is suitable for different environment, and shows various performance. By reviewing a large number of references at home and abroad, we briefly summarize the advantages and disadvantages of different types of seismographs from their principle, as well as the research progress and use actuality, which is supposed to to facilitate the reference for relevant researches and engineering application. In addition, this paper also presents the principle of a laser Doppler seismograph that we are studying currently. Laser measuring technology has the advantage of resolution and antinoise compared with other electromagnetic measuring technology. Hence, designing seismograph with laser measuring technology will improve instrument performance in terms of resolution and environmental adaptability.
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Key words:
- seismograph /
- present situation /
- laser doppler
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