JPS5633578A - Measuring system for propagation of oscillation wave - Google Patents

Measuring system for propagation of oscillation wave

Info

Publication number
JPS5633578A
JPS5633578A JP10860279A JP10860279A JPS5633578A JP S5633578 A JPS5633578 A JP S5633578A JP 10860279 A JP10860279 A JP 10860279A JP 10860279 A JP10860279 A JP 10860279A JP S5633578 A JPS5633578 A JP S5633578A
Authority
JP
Japan
Prior art keywords
wave
oscillation
vibrator
ground
detectors
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP10860279A
Other languages
Japanese (ja)
Inventor
Naganori Sato
Masao Sawada
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to JP10860279A priority Critical patent/JPS5633578A/en
Publication of JPS5633578A publication Critical patent/JPS5633578A/en
Pending legal-status Critical Current

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  • Geophysics And Detection Of Objects (AREA)

Abstract

PURPOSE: To measure the propagation velocity of the oscillation wave on the ground, etc., by setting on the ground, etc. a vibrator and two oscillation detectors keeping a known distance between them, and by driving the vibrator in such a manner as to overlap a high-frequency wave onto a low-frequency wave.
CONSTITUTION: The vibrator 1 is set on the ground G and two oscillation detectors 2 and 3 are also set on the ground in such a position that they are kept away from the vibrator 1 by an appropriate distance and that the oscillation detectors are kept away from each other by a distance S which is the maximum wave length value or less of an anticipated propagating wave. The vibrator 1 is driven in such a manner as to overlap the wave of higher frequency fb onto the wave of lower frequency fa selected in conjuction with the maximum wave length of the propagating wave to be measured, and by detecting the propagating wave by the oscillation detectors 2 and 3, the cross correlation is sought through the cross correlation calculation by a calculator and a counter. And therefore, it is possible to obtain the propagation velocity of the oscillation in a stratum while keeping a fixed distance between the two oscillation detectors without requiring much time and manpower.
COPYRIGHT: (C)1981,JPO&Japio
JP10860279A 1979-08-28 1979-08-28 Measuring system for propagation of oscillation wave Pending JPS5633578A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10860279A JPS5633578A (en) 1979-08-28 1979-08-28 Measuring system for propagation of oscillation wave

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10860279A JPS5633578A (en) 1979-08-28 1979-08-28 Measuring system for propagation of oscillation wave

Publications (1)

Publication Number Publication Date
JPS5633578A true JPS5633578A (en) 1981-04-04

Family

ID=14488952

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10860279A Pending JPS5633578A (en) 1979-08-28 1979-08-28 Measuring system for propagation of oscillation wave

Country Status (1)

Country Link
JP (1) JPS5633578A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1993004385A1 (en) * 1991-08-14 1993-03-04 Vibration Instruments Co., Ltd. Method of deciding bed structure and apparatus for investigating bed structure

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1993004385A1 (en) * 1991-08-14 1993-03-04 Vibration Instruments Co., Ltd. Method of deciding bed structure and apparatus for investigating bed structure

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