JPS5754882A - Observing system for submarine crust - Google Patents

Observing system for submarine crust

Info

Publication number
JPS5754882A
JPS5754882A JP55130516A JP13051680A JPS5754882A JP S5754882 A JPS5754882 A JP S5754882A JP 55130516 A JP55130516 A JP 55130516A JP 13051680 A JP13051680 A JP 13051680A JP S5754882 A JPS5754882 A JP S5754882A
Authority
JP
Japan
Prior art keywords
spots
spot
cable
processing device
ultrasonic wave
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
JP55130516A
Other languages
Japanese (ja)
Other versions
JPS6256992B2 (en
Inventor
Haruo Tabata
Tadayoshi Matsuzaki
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.)
NEC Corp
Original Assignee
NEC Corp
Nippon Electric Co Ltd
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 NEC Corp, Nippon Electric Co Ltd filed Critical NEC Corp
Priority to JP55130516A priority Critical patent/JPS5754882A/en
Publication of JPS5754882A publication Critical patent/JPS5754882A/en
Publication of JPS6256992B2 publication Critical patent/JPS6256992B2/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

Landscapes

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

Abstract

PURPOSE:To observe components of coordinates of a relative displacement vector of the other spot when one spot is taken as a reference, by a method wherein ultrasonic wave transmitting and receiving devices, etc., are installed at a plurality of spots set on the bottom of the sea, and distances between respective two spots and the depths of water at several spots are measured. CONSTITUTION:Observing devices 20 are installed on the bottom of the sea 10, and they are connected each other using cables 25-29. One end of the cable 29 is terminated at the observing devices 20, and one end of the cable 25 is connected to a processing device 6 installed on the land 5. In the observing devices 20, a pulse from the processing device 6 is inputted via the cable 25 to a hybrid circuit 161, and one component of the pulse is inputted to the cable 26, further the other component is inputted through a hybrid circuit 162 and an amplifier 17 to an ultrasonic wave transmitter 121 and a velocimeter 14. Outputs from the velocimeter 14, an ultrasonic wave receiver 131 and a water-pressure gate 15 are frequency-multiplexed, transmitted to the processing device 6 and demodulated there, thereby allowing the depths of water at several spots 20 and distances between respective spots to be obtained. And, by taking one spot as a reference, components of coordinates of a relative displacement vector at the other spot is calculated and indicated.
JP55130516A 1980-09-19 1980-09-19 Observing system for submarine crust Granted JPS5754882A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55130516A JPS5754882A (en) 1980-09-19 1980-09-19 Observing system for submarine crust

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55130516A JPS5754882A (en) 1980-09-19 1980-09-19 Observing system for submarine crust

Publications (2)

Publication Number Publication Date
JPS5754882A true JPS5754882A (en) 1982-04-01
JPS6256992B2 JPS6256992B2 (en) 1987-11-28

Family

ID=15036157

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55130516A Granted JPS5754882A (en) 1980-09-19 1980-09-19 Observing system for submarine crust

Country Status (1)

Country Link
JP (1) JPS5754882A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60214289A (en) * 1984-04-10 1985-10-26 アンスチチユ　フランセ　ドユ　ペトロル Device for determining underwater position of slender body
JPS62118287A (en) * 1985-11-14 1987-05-29 アンタル　ア−ダ−ム Method of previewing or observing earthquake induced naturally and/or artificially and protecting facility

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60214289A (en) * 1984-04-10 1985-10-26 アンスチチユ　フランセ　ドユ　ペトロル Device for determining underwater position of slender body
JPH0417398B2 (en) * 1984-04-10 1992-03-25 Ansuchi* Furanse Deyu Petorooru
JPS62118287A (en) * 1985-11-14 1987-05-29 アンタル　ア−ダ−ム Method of previewing or observing earthquake induced naturally and/or artificially and protecting facility

Also Published As

Publication number Publication date
JPS6256992B2 (en) 1987-11-28

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