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FR926761A - Improvements to vibrators emitting high frequency acoustic waves - Google Patents

Improvements to vibrators emitting high frequency acoustic waves

Info

Publication number
FR926761A
FR926761A FR926761DA FR926761A FR 926761 A FR926761 A FR 926761A FR 926761D A FR926761D A FR 926761DA FR 926761 A FR926761 A FR 926761A
Authority
FR
France
Prior art keywords
high frequency
acoustic waves
frequency acoustic
emitting high
vibrators
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.)
Submarine Signal Co
Original Assignee
Submarine Signal 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 Submarine Signal Co filed Critical Submarine Signal Co
Application granted granted Critical
Publication of FR926761A publication Critical patent/FR926761A/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

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Apparatuses For Generation Of Mechanical Vibrations (AREA)
FR926761D 1938-05-18 1946-05-10 Improvements to vibrators emitting high frequency acoustic waves Expired FR926761A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US208568A US2402697A (en) 1938-05-18 1938-05-18 High-frequency vibrator

Publications (1)

Publication Number Publication Date
FR926761A true FR926761A (en) 1947-10-10

Family

ID=22775076

Family Applications (1)

Application Number Title Priority Date Filing Date
FR926761D Expired FR926761A (en) 1938-05-18 1946-05-10 Improvements to vibrators emitting high frequency acoustic waves

Country Status (2)

Country Link
US (1) US2402697A (en)
FR (1) FR926761A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2462203A1 (en) * 1979-07-27 1981-02-13 Kratysh Georgy Electro-acoustic radiator plate - has magnetostrictive elements giving high efficiency by avoiding bending oscillations

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2517565A (en) * 1939-01-21 1950-08-08 Harvey C Hayes Electrodynamic transceiver for transmission and reception of sound
US2561368A (en) * 1946-01-09 1951-07-24 Harvey C Hayes Electromagnetic underwater sound projector and receiver
US3022487A (en) * 1951-08-11 1962-02-20 Harris Transducer Corp Electromagnetic transducer
US4013846A (en) * 1975-08-28 1977-03-22 Minnesota Mining And Manufacturing Company Piston loudspeaker

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2462203A1 (en) * 1979-07-27 1981-02-13 Kratysh Georgy Electro-acoustic radiator plate - has magnetostrictive elements giving high efficiency by avoiding bending oscillations

Also Published As

Publication number Publication date
US2402697A (en) 1946-06-25

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