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Study of the development of high resolution sub-surface fluid monitoring system using Accurately Controlled Routine Operated Seismic Sources (ACROSS); Seimitsu seigyo shingen ni yoru chika ryutai koseido monitoring no kenkyu

Abstract

Fourier seismology capable of determining quantities related to elastic wave velocity dispersibility and non-elastic damping is under development, and studies are under way for the development of a sub-surface probing technology utilizing this seismology. It is deemed that the above-said quantities are related to the occurrence of earthquakes, behavior of sub-surface water, and migration of magma. In this method, precisely controlled sinusoidal waves are radiated and the received spectral data is subjected to cepstrum analysis, advantageous over other methods in that it achieves a high S/N ratio in a non-destructive way, facilitates deep structure analysis, and capable of monitoring changes with the elapse of time in such a structure. A newly-developed high-mobility transportable quake generator is described, which covers a wider frequency range and aims at the short-distance exploration of sub-surface conditions. Important components of the quake generator include an eccentric mass bearing capable of dealing with high-speed rotation enabling high frequency oscillation, variable mechanism for the primary moment of inertia, exciter and ground surface coupler allowing operations on a soft ground, and torque cancelling mechanism for the excitation of SH waves only. 3 figs.
Authors:
Kumazawa, M; Ogawa, K; Fujii, N; Yamaoka, K; Kumagai, H; Takei, Y; [1]  Ishihara, K; Nakaya, m [2] 
  1. Nagoya University, Nagoya (Japan). Faculty of Science
  2. New Energy and Industrial Technology Development Organization, Tokyo, (Japan)
Publication Date:
Feb 01, 1997
Product Type:
Conference
Report Number:
CONF-970283-
Reference Number:
SCA: 422000; 440700; PA: NEDO-97:820047; EDB-97:108499; SN: 97001821141
Resource Relation:
Conference: Report meeting for the results of `the publicly applied proposal type and hi-tech (emphasized) field research and development in fiscal 1995`, 1995 nendo teian kobogata saisentan (juten) bun`ya kenkyu kaihatsu seika hokokukai, Tokyo (Japan), 12-14 Feb 1997; Other Information: PBD: Feb 1997; Related Information: Is Part Of Preprint of the results of `the publicly applied proposal type and hi-tech (emphasized) field research and development in fiscal 1995`; PB: 469 p.; `1995 nendo teian kobogata saisentan (juten) bun`ya kenkyu kaihatsu` seika hokokukai yokoshu
Subject:
42 ENGINEERING NOT INCLUDED IN OTHER CATEGORIES; 44 INSTRUMENTATION, INCLUDING NUCLEAR AND PARTICLE DETECTORS; SEISMIC SOURCES; GROUND MOTION; FLUIDS; UNDERGROUND; MONITORING; FOURIER ANALYSIS; SEISMOLOGY; EARTHQUAKES; UNDERWATER; MAGMA; SPECTRA; DATA ANALYSIS; ACOUSTIC MEASUREMENTS; SIGNAL-TO-NOISE RATIO; MOMENT OF INERTIA
OSTI ID:
506685
Research Organizations:
New Energy and Industrial Technology Development Organization, Tokyo (Japan)
Country of Origin:
Japan
Language:
Japanese
Other Identifying Numbers:
Other: ON: DE97757283; TRN: 97:820047
Availability:
Available from New Energy and Industrial Technology Development Organization, Sunshine 60, 30F 1-1, 3-chome, Higashi-Ikebukuro, Toshima-ku, Tokyo, Japan; OSTI as DE97757283
Submitting Site:
NEDO
Size:
pp. 412-413
Announcement Date:

Citation Formats

Kumazawa, M, Ogawa, K, Fujii, N, Yamaoka, K, Kumagai, H, Takei, Y, Ishihara, K, and Nakaya, m. Study of the development of high resolution sub-surface fluid monitoring system using Accurately Controlled Routine Operated Seismic Sources (ACROSS); Seimitsu seigyo shingen ni yoru chika ryutai koseido monitoring no kenkyu. Japan: N. p., 1997. Web.
Kumazawa, M, Ogawa, K, Fujii, N, Yamaoka, K, Kumagai, H, Takei, Y, Ishihara, K, & Nakaya, m. Study of the development of high resolution sub-surface fluid monitoring system using Accurately Controlled Routine Operated Seismic Sources (ACROSS); Seimitsu seigyo shingen ni yoru chika ryutai koseido monitoring no kenkyu. Japan.
Kumazawa, M, Ogawa, K, Fujii, N, Yamaoka, K, Kumagai, H, Takei, Y, Ishihara, K, and Nakaya, m. 1997. "Study of the development of high resolution sub-surface fluid monitoring system using Accurately Controlled Routine Operated Seismic Sources (ACROSS); Seimitsu seigyo shingen ni yoru chika ryutai koseido monitoring no kenkyu." Japan.
@misc{etde_506685,
title = {Study of the development of high resolution sub-surface fluid monitoring system using Accurately Controlled Routine Operated Seismic Sources (ACROSS); Seimitsu seigyo shingen ni yoru chika ryutai koseido monitoring no kenkyu}
author = {Kumazawa, M, Ogawa, K, Fujii, N, Yamaoka, K, Kumagai, H, Takei, Y, Ishihara, K, and Nakaya, m}
abstractNote = {Fourier seismology capable of determining quantities related to elastic wave velocity dispersibility and non-elastic damping is under development, and studies are under way for the development of a sub-surface probing technology utilizing this seismology. It is deemed that the above-said quantities are related to the occurrence of earthquakes, behavior of sub-surface water, and migration of magma. In this method, precisely controlled sinusoidal waves are radiated and the received spectral data is subjected to cepstrum analysis, advantageous over other methods in that it achieves a high S/N ratio in a non-destructive way, facilitates deep structure analysis, and capable of monitoring changes with the elapse of time in such a structure. A newly-developed high-mobility transportable quake generator is described, which covers a wider frequency range and aims at the short-distance exploration of sub-surface conditions. Important components of the quake generator include an eccentric mass bearing capable of dealing with high-speed rotation enabling high frequency oscillation, variable mechanism for the primary moment of inertia, exciter and ground surface coupler allowing operations on a soft ground, and torque cancelling mechanism for the excitation of SH waves only. 3 figs.}
place = {Japan}
year = {1997}
month = {Feb}
}