JPS573065A - Exciting source for s wave detecting layer - Google Patents

Exciting source for s wave detecting layer

Info

Publication number
JPS573065A
JPS573065A JP7623580A JP7623580A JPS573065A JP S573065 A JPS573065 A JP S573065A JP 7623580 A JP7623580 A JP 7623580A JP 7623580 A JP7623580 A JP 7623580A JP S573065 A JPS573065 A JP S573065A
Authority
JP
Japan
Prior art keywords
exciting source
hole
fluid
force
ring
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.)
Granted
Application number
JP7623580A
Other languages
Japanese (ja)
Other versions
JPS6214791B2 (en
Inventor
Sumio Nakanishi
Kimio Ogura
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.)
OYO CHISHITSU KK
Original Assignee
OYO CHISHITSU KK
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 OYO CHISHITSU KK filed Critical OYO CHISHITSU KK
Priority to JP7623580A priority Critical patent/JPS573065A/en
Publication of JPS573065A publication Critical patent/JPS573065A/en
Publication of JPS6214791B2 publication Critical patent/JPS6214791B2/ja
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
    • G01V1/00—Seismology; Seismic or acoustic prospecting or detecting
    • G01V1/02—Generating seismic energy
    • G01V1/143—Generating seismic energy using mechanical driving means, e.g. motor driven shaft
    • G01V1/155—Generating seismic energy using mechanical driving means, e.g. motor driven shaft using reciprocating masses

Landscapes

  • Engineering & Computer Science (AREA)
  • Remote Sensing (AREA)
  • Physics & Mathematics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Acoustics & Sound (AREA)
  • Environmental & Geological Engineering (AREA)
  • Geology (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Geophysics (AREA)
  • Geophysics And Detection Of Objects (AREA)

Abstract

PURPOSE:To act exciting source force without using any mechanical mechanism by acting the electromagnetic force of coils upon the magnetic fluid sealed by a rubber sheet. CONSTITUTION:An outer case 10 of a cylindrical shape is mounted to a probe 1, and an exciting source body is put therein. The exciting source body consists of a thick-walled nonmagnetic cylindrical block 11, a rubber sheet 2 which is press-fixed thereto by way of an O-ring 12, a retaining member 13 with a cylindrical collar, an inner magnetic yoke 14, coil rings 4a, 4b wound to a bobbin 15 and an outer yoke 16. Magnetic fluid 3 is filled in the area encircled by the sheet 2 and the block 11. If electricity is conducted to the coil ring 4a, the entire part of the fluid 3 can be moved in an X direction and if it is conducted to the coil ring 4b, the fluid can be moved in -X direction. The water 5 in hole, too, moves in the X direction or -X direction without receiving any volume change. Hence, force is applied in the X or -X direction to the wall 6 in hole and only the S waves are radiated to the axial direction of the hole.
JP7623580A 1980-06-06 1980-06-06 Exciting source for s wave detecting layer Granted JPS573065A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7623580A JPS573065A (en) 1980-06-06 1980-06-06 Exciting source for s wave detecting layer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7623580A JPS573065A (en) 1980-06-06 1980-06-06 Exciting source for s wave detecting layer

Publications (2)

Publication Number Publication Date
JPS573065A true JPS573065A (en) 1982-01-08
JPS6214791B2 JPS6214791B2 (en) 1987-04-03

Family

ID=13599498

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7623580A Granted JPS573065A (en) 1980-06-06 1980-06-06 Exciting source for s wave detecting layer

Country Status (1)

Country Link
JP (1) JPS573065A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58210585A (en) * 1982-05-19 1983-12-07 エクソン・プロダクシヨン・リサ−チ・コムパニ− Measurement method by acoustic four pole shear wave and its device
JPS5923274A (en) * 1982-07-06 1984-02-06 エクソン・プロダクシヨン・リサ−チ・コムパニ− Acoustic bipolar shear wave measuring device
JP2008209391A (en) * 2007-01-30 2008-09-11 National Institute Of Advanced Industrial & Technology Stationary earthquake source using electromagnetic coil

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54107401A (en) * 1978-02-09 1979-08-23 Nagarou Kozaki Vibrating method for s wave detecting layer

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54107401A (en) * 1978-02-09 1979-08-23 Nagarou Kozaki Vibrating method for s wave detecting layer

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58210585A (en) * 1982-05-19 1983-12-07 エクソン・プロダクシヨン・リサ−チ・コムパニ− Measurement method by acoustic four pole shear wave and its device
JPS5923274A (en) * 1982-07-06 1984-02-06 エクソン・プロダクシヨン・リサ−チ・コムパニ− Acoustic bipolar shear wave measuring device
JP2008209391A (en) * 2007-01-30 2008-09-11 National Institute Of Advanced Industrial & Technology Stationary earthquake source using electromagnetic coil

Also Published As

Publication number Publication date
JPS6214791B2 (en) 1987-04-03

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