大地震波预报用重力场传感器

Proceedings 1992 International Carnahan Conference on Security Technology: Crime Countermeasures Pub Date : 1992-10-14 DOI:10.1109/CCST.1992.253730

J. Chiba, T. Obata

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引用次数: 3

摘要

作者概述了用于大地震波预报的重力场传感器。他们研究了由大地震波引起的牛顿引力场的湍流，以及用干涉引力波天线探测湍流场。紊流场产生的原因是地面的质量密度随波的变化。使用天线的预警系统优于地震仪的预警系统。当地震仪和天线设置在同一地点时，例如，距离M/ S/约7级强地震的震中100公里，地震仪在p波到达之前没有响应，但天线在到达前7秒就会以约20 db的灵敏度对引力场做出响应。

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Gravitational field sensor for prediction of big seismic waves

The authors outline the gravitational field sensor for prediction of large seismic waves. They studied the turbulence of a Newtonian gravitational field due to large seismic waves and the detection of the turbulent field by an interferometric gravitational wave antenna. The cause of the turbulent field is the variation of the mass density in the ground by the waves. The warning system using the antenna is superior to that of a seismograph. When the seismograph and the antenna are set at the same place, for instance, 100 km away from the epicenter of a strong earthquake of M/sub S/ approximately 7, the seismograph does not respond until the arrival of the P-wave, but the antenna will respond to the gravitational field with about a 20-dB sensitivity 7 s before the arrival.<>

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Proceedings 1992 International Carnahan Conference on Security Technology: Crime Countermeasures

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