FR817640A - Special underwater microphone for deep mooring, isolated or in directional groups - Google Patents

Special underwater microphone for deep mooring, isolated or in directional groups

Info

Publication number
FR817640A
FR817640A FR817640DA FR817640A FR 817640 A FR817640 A FR 817640A FR 817640D A FR817640D A FR 817640DA FR 817640 A FR817640 A FR 817640A
Authority
FR
France
Prior art keywords
mooring
deep
isolated
underwater microphone
special underwater
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.)
Expired
Application number
Other languages
French (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.)
J CARPENTIER ATEL
Original Assignee
J CARPENTIER ATEL
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 J CARPENTIER ATEL filed Critical J CARPENTIER ATEL
Application granted granted Critical
Publication of FR817640A publication Critical patent/FR817640A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S1/00—Beacons or beacon systems transmitting signals having a characteristic or characteristics capable of being detected by non-directional receivers and defining directions, positions, or position lines fixed relatively to the beacon transmitters; Receivers co-operating therewith
    • G01S1/72—Beacons or beacon systems transmitting signals having a characteristic or characteristics capable of being detected by non-directional receivers and defining directions, positions, or position lines fixed relatively to the beacon transmitters; Receivers co-operating therewith using ultrasonic, sonic or infrasonic waves
FR817640D 1936-05-14 1936-05-14 Special underwater microphone for deep mooring, isolated or in directional groups Expired FR817640A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR817640T 1936-05-14

Publications (1)

Publication Number Publication Date
FR817640A true FR817640A (en) 1937-09-07

Family

ID=9268442

Family Applications (1)

Application Number Title Priority Date Filing Date
FR817640D Expired FR817640A (en) 1936-05-14 1936-05-14 Special underwater microphone for deep mooring, isolated or in directional groups

Country Status (1)

Country Link
FR (1) FR817640A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2717369A (en) * 1952-07-31 1955-09-06 Gulf Research Development Co Pressure-sensitive deep well seismograph detector
US2765565A (en) * 1954-07-19 1956-10-09 Victor P Mussio Undersea detector
EP0583805A1 (en) * 1988-11-04 1994-02-23 Thomson-Csf Flextensional transducer

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2717369A (en) * 1952-07-31 1955-09-06 Gulf Research Development Co Pressure-sensitive deep well seismograph detector
US2765565A (en) * 1954-07-19 1956-10-09 Victor P Mussio Undersea detector
EP0583805A1 (en) * 1988-11-04 1994-02-23 Thomson-Csf Flextensional transducer

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