FR2326712B1 - - Google Patents

Info

Publication number
FR2326712B1
FR2326712B1 FR7628664A FR7628664A FR2326712B1 FR 2326712 B1 FR2326712 B1 FR 2326712B1 FR 7628664 A FR7628664 A FR 7628664A FR 7628664 A FR7628664 A FR 7628664A FR 2326712 B1 FR2326712 B1 FR 2326712B1
Authority
FR
France
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.)
Expired
Application number
FR7628664A
Other versions
FR2326712A1 (fr
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.)
Chevron USA Inc
Original Assignee
Chevron Research and Technology Co
Chevron Research Co
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 Chevron Research and Technology Co, Chevron Research Co filed Critical Chevron Research and Technology Co
Publication of FR2326712A1 publication Critical patent/FR2326712A1/fr
Application granted granted Critical
Publication of FR2326712B1 publication Critical patent/FR2326712B1/fr
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
    • G01V13/00—Manufacturing, calibrating, cleaning, or repairing instruments or devices covered by groups G01V1/00 – G01V11/00
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01H—MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC OR INFRASONIC WAVES
    • G01H13/00—Measuring resonant frequency

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geophysics (AREA)
  • Geophysics And Detection Of Objects (AREA)
  • Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
  • Testing Electric Properties And Detecting Electric Faults (AREA)
  • Measurement Of Resistance Or Impedance (AREA)
FR7628664A 1975-10-01 1976-09-23 Circuit et procede pour la mesure et l'affichage automatiques de frequences de resonance d'elements de detection sismique Granted FR2326712A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/618,606 US4015202A (en) 1975-10-01 1975-10-01 Automatic measurement and display of resonance frequencies of seismic detection elements

Publications (2)

Publication Number Publication Date
FR2326712A1 FR2326712A1 (fr) 1977-04-29
FR2326712B1 true FR2326712B1 (fr) 1983-03-04

Family

ID=24478379

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7628664A Granted FR2326712A1 (fr) 1975-10-01 1976-09-23 Circuit et procede pour la mesure et l'affichage automatiques de frequences de resonance d'elements de detection sismique

Country Status (6)

Country Link
US (1) US4015202A (fr)
JP (2) JPS5255676A (fr)
CA (1) CA1054679A (fr)
DE (1) DE2644887C2 (fr)
FR (1) FR2326712A1 (fr)
GB (1) GB1557699A (fr)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4233677A (en) * 1978-02-21 1980-11-11 Chevron Research Company Automatic system and method for testing marine streamers of seismic exploration systems
US4298969A (en) * 1979-09-26 1981-11-03 Exxon Production Research Company Method and apparatus for testing the impedances of geophone channels
US4448057A (en) * 1982-05-21 1984-05-15 Geosource Inc. Apparatus and method for testing a geophone during assembly
US5095464A (en) * 1987-10-15 1992-03-10 Shell Oil Company Hydrophone checker
US5121362A (en) * 1987-10-15 1992-06-09 Shell Oil Company Geophone checker
US6308554B1 (en) 1994-03-12 2001-10-30 Robert Bosch Gmbh Electronic device having an acceleration-sensitive sensor
ITMI20112421A1 (it) * 2011-12-29 2013-06-30 St Microelectronics Srl Metodo e circuito per determinare frequenze di risonanza di un dispositivo risonante

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2031951A (en) * 1932-02-25 1936-02-25 Bell Telephone Labor Inc Burglar alarm system
US2288310A (en) * 1938-04-23 1942-06-30 Lundberg Exploration S A Apparatus for geoelectric and seismic investigations
US2318248A (en) * 1940-02-21 1943-05-04 Socony Vacuum Oil Co Inc Phase meter
US2648979A (en) * 1946-08-09 1953-08-18 Seismograph Service Corp Transducer testing apparatus
US2986696A (en) * 1954-11-23 1961-05-30 Reeves Instrument Corp Method and apparatus for analyzing phase shifting networks
US3501695A (en) * 1965-04-08 1970-03-17 Ericsson Telefon Ab L M Resonance measuring apparatus utilizing the sideband signals of an fm-test signal for feedback control
US3522529A (en) * 1967-12-14 1970-08-04 Phillips Petroleum Co Impedance measuring alternating current bridge having an automatically adjustable frequency oscillator
US3717810A (en) * 1971-07-15 1973-02-20 Gulf Research Development Co Abnormal impedance test for a string of geophones
FR2184442B1 (fr) * 1972-05-17 1974-12-20 Snecma
US3840804A (en) * 1973-05-21 1974-10-08 F Sauerland Crystal frequency monitor
US3984771A (en) * 1975-10-20 1976-10-05 Rca Corporation Accurate digital phase/frequency extractor

Also Published As

Publication number Publication date
JPS5255676A (en) 1977-05-07
DE2644887A1 (de) 1977-04-14
GB1557699A (en) 1979-12-12
JPS57203337U (fr) 1982-12-24
DE2644887C2 (de) 1986-09-18
FR2326712A1 (fr) 1977-04-29
CA1054679A (fr) 1979-05-15
US4015202A (en) 1977-03-29

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Legal Events

Date Code Title Description
ST Notification of lapse