Title :
Detection technology of large seismic waves
Author :
Chiba, Jiro ; Nemoto, Yosiaki
Author_Institution :
Tohoku Inst. of Technol., Sendai, Japan
Abstract :
We investigate the detection technology of large seismic waves. Particular attention is paid to output signal patterns of an interferometric gravitational field detector when seismic waves are approaching. Observing the turbulence of the gravitational field due to the approach of seismic waves enables to predict the attack of the P wave. Detection of the turbulence of the gravitational field is performed by measuring the relative displacements of several nearly free masses which carry the mirrors defining the interferometer
Keywords :
displacement measurement; geophysical equipment; gravity; light interferometers; mirrors; seismic waves; turbulence; displacements; interferometer; interferometric gravitational field detector; large seismic wave detection technology; mirrors; output signal patterns; turbulence; Arm; Detectors; Electron tubes; Laser beams; Mirrors; Optical interferometry; Performance evaluation; Seismic waves; Signal to noise ratio; Structural beams;
Conference_Titel :
Security Technology, 1998. Proceedings., 32nd Annual 1998 International Carnahan Conference on
Conference_Location :
Alexandria, VA
Print_ISBN :
0-7803-4535-5
DOI :
10.1109/CCST.1998.723800
