Method of generating seismic waves
阅读：240发布：2022-07-07
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1. THE METHOD OF SEISMIC SURVEYING, WHICH COMPRISES DISTRIBUTING A PLURALITY OF DETECTORS IN SPACED RELATION IN A LINEAR ARRAY ON THE GROUND SURFACE IN A CERTAIN DIRECTION, EACH OF SAID DETECTORS BEING IN CONTACT WITH THE GROUND FOR DETECTING SEISMIC WAVES TRAVELING THERETHROUGH AND BEING CONNECTED TO A RECORDING SYSTEM, CREATING IN THE GROUND SURFACE SEISMIC DISTURBANCES AS ORIGINS OF SEISMIC WAVES, SAID DISTURBANCES BEING CREATED AT POINTS WHICH FORM A PATTERN HAVING A LONGITUDINAL EXTENSION IN THE SAME DIRECTION AS SAID LINEAR ARRAY, EACH DISTURBANCE COMPRISING A PARTICULAR SPECTRUM OF FREQUENCIES, CONTROLLING EACH ONE OF SAID SPECTRA SO THAT FOR EACH FREQUENCY THE SPACING BETWEEN SAID SOURCES OF SAID PATTERN IS AT MOST EQUAL TO ONE HALF THE WAVE LENGTH OF A SEISMIC SIGNAL WAVE OF SAID FREQUENCY, SAID WAVE LENGTH BEING MEASURED IN THE DIRECTION OF SAID LINEAR ARRAY, WHEREBY DISTURBANCE CREATED AT THE END PORTIONS OF THE LONGITUDINAL EXTENSION OF SAID PATTERN COMPRISE SPECTRA OF LOWER FREQUENCIES AND DISTURBANCES CREATED AT THE CENTRAL PORTION OF THE LONGITUDINAL EXTENSION OF SAID PATTERN COMPRISE SPECTRA OF HIGHER FREQUENCIES, AND RECORDING THE ENERGIZATION OF SAID DETECTORS PRODUCED BY THE DETECTED SEISMIC WAVES.
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