GB190921394A - Improvements in and relating to the Production of Sound Waves by Means of Forced Vibrations. - Google Patents

Improvements in and relating to the Production of Sound Waves by Means of Forced Vibrations.

Info

Publication number
GB190921394A
GB190921394A GB190921394DA GB190921394A GB 190921394 A GB190921394 A GB 190921394A GB 190921394D A GB190921394D A GB 190921394DA GB 190921394 A GB190921394 A GB 190921394A
Authority
GB
United Kingdom
Prior art keywords
vibrated
relating
production
sound waves
supplied
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
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.)
Evershed and Vignoles Ltd
Original Assignee
Evershed and Vignoles 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 Evershed and Vignoles Ltd filed Critical Evershed and Vignoles Ltd
Application granted granted Critical
Publication of GB190921394A publication Critical patent/GB190921394A/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)

Abstract

21,394. Pearce, H., and Evershed & Vignoles. Sept. 18. Subaqueous sound signalling.-In apparatus for producing sound-waves for submarine signalling &c., a hollow body is vibrated by rotating magnetic fields so that emission is effected in all directions. The pole-pieces c are supplied from the three-phase generator e as shown. The laminated armatures b are attached to the hollow cylindrical vibrating body a. In a modification, the vibrating body is itself magnetic, and is vibrated uniformly round its circumference at any moment. The body may also be vibrated by means of rotating magnets supplied with alternating current.
GB190921394D 1909-09-18 1909-09-18 Improvements in and relating to the Production of Sound Waves by Means of Forced Vibrations. Expired GB190921394A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB190921394T 1909-09-18

Publications (1)

Publication Number Publication Date
GB190921394A true GB190921394A (en) 1910-09-19

Family

ID=32557535

Family Applications (1)

Application Number Title Priority Date Filing Date
GB190921394D Expired GB190921394A (en) 1909-09-18 1909-09-18 Improvements in and relating to the Production of Sound Waves by Means of Forced Vibrations.

Country Status (1)

Country Link
GB (1) GB190921394A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0684085A1 (en) * 1994-05-26 1995-11-29 ETAT FRANCAIS Représenté par le Délégué Général pour l'Armement Open sonar array comprising electroacoustic transducers
FR2720587A1 (en) * 1994-05-26 1995-12-01 France Etat Armement Sonar aerial for multi-directional transmission and reception
FR2720586A1 (en) * 1994-05-26 1995-12-01 France Etat Armement Sonar aerial for multi-directional transmission and reception

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0684085A1 (en) * 1994-05-26 1995-11-29 ETAT FRANCAIS Représenté par le Délégué Général pour l'Armement Open sonar array comprising electroacoustic transducers
FR2720587A1 (en) * 1994-05-26 1995-12-01 France Etat Armement Sonar aerial for multi-directional transmission and reception
FR2720586A1 (en) * 1994-05-26 1995-12-01 France Etat Armement Sonar aerial for multi-directional transmission and reception

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