| Research on bulging plate of scaler for horizontal pendulum tiltmeter |
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| 作者姓名： | 张志中 朱虎 吴健 |
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| 作者单位： | Institute of Geophysics，China Earthquake Administration Beijing 100081，China，Institute of Geophysics，China Earthquake Administration Beijing 100081，China，Institute of Geophysics，China Earthquake Administration Beijing 100081，China |
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| 摘 要： | After the horizontal pendulum is used in ground-tilt measurement, its scaling has drawn great attentions from the people, because without a correct calibration of scale value, the observation is of little application sig- nificance. From the 1920′s, quite a few scholars were engaged in the researches in this respect. And this question was satisfactorily solved until 1962 when Verbaandert (1962) invented the bulging plate, i.e., mercury-cup scaler. After further improvement, the V-M quartz ho…
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Research on bulging plate of scaler for horizontal pendulum tiltmeter |
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| ZHANG Zhi-zhong,ZHU Hu,WU Jian.Research on bulging plate of scaler for horizontal pendulum tiltmeter[J].Acta Seismologica Sinica(English Edition),2005,18(5):618-623. |
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| Authors: | ZHANG Zhi-zhong ZHU Hu WU Jian |
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| Institution: | Institute of Geophysics, China Earthquake Administration, Beijing 100081, China |
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| Abstract: | After the horizontal pendulum is used in ground-tilt measurement, its scaling has drawn great attentions from the people, because without a correct calibration of scale value, the observation is of little application significance. From the 1920's, quite a few scholars were engaged in the researches in this respect. And this question was satisfactorily solved until 1962 when Verbaandert (1962) invented the bulging plate, i.e., mercury-cup scaler.After further improvement, the V-M quartz horizontal pendulum tiltmeter was used globally in observation and great success was achieved (Melchior, 1966, 1978). In China, the quartz horizontal pendulum tiltmeter as well as the bulging-plate scaler were developed at the beginning of 1970's and then put into use after some improvements (ZHU and FENG, 1980). The successful observation by SQ quartz horizontal pendulum tiltmeter should be related not only to the excellent performance of horizontal pendulum, but also to its accurate calibration. The bulging plate plays an important role in calibration, because it is the critical component of scaler. |
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| Keywords: | bulging-plate scaler mercury bulging plate constants innocuous high-density liquid |
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