GB301034A - Apparatus for the communication of signals by means of acoustic high frequency oscillations - Google Patents

Apparatus for the communication of signals by means of acoustic high frequency oscillations

Info

Publication number
GB301034A
GB301034A GB34272/28A GB3427228A GB301034A GB 301034 A GB301034 A GB 301034A GB 34272/28 A GB34272/28 A GB 34272/28A GB 3427228 A GB3427228 A GB 3427228A GB 301034 A GB301034 A GB 301034A
Authority
GB
United Kingdom
Prior art keywords
length
wave
signals
communication
length equal
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
GB34272/28A
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.)
ELFCTROACUSTIC GES MIT BESCHRA
Original Assignee
ELFCTROACUSTIC GES MIT BESCHRA
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 ELFCTROACUSTIC GES MIT BESCHRA filed Critical ELFCTROACUSTIC GES MIT BESCHRA
Publication of GB301034A publication Critical patent/GB301034A/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)
  • Transducers For Ultrasonic Waves (AREA)

Abstract

301,034. Electroacustic Ges. Nov. 23, 1927, [Convention date]. Subaqueous audible signals.-In a high-fre. quency sound emitter, particuhrly one using a supersonic or high acoustic frequency, an elon. gated radiating surface 4 is arranged with its longer axis vertical so as to give substantially uniform distribution of sound over a horizontal plane, and is dimensioned so as to have a length equal to a multiple of the wave-length of the operating frequency and a width not greater than half this wave-length. The apparatus may have duplicate radiating surfaces 4 carried in a body 1 of stream-line section which is mounted in a ship's skin 3 in such a way that it can be moved out and in. The surfaces 4 may be excited electromagnetically by a series of elements of the kind shown in Fig. 3, or, alternatively, a single elongated electromagnetic unit may be used. Piezo-electric excitation may also be used, the operating potentials being supplied from a thermionic generator. The Specification as open to inspection under Sect. 91 (3) (a) comprises also radiators of a length equal to the wave length, and states that the apparatus may be used as a receiver. This subject-matter does not appear in the Specification as accepted.
GB34272/28A 1927-11-23 1928-11-21 Apparatus for the communication of signals by means of acoustic high frequency oscillations Expired GB301034A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE301034X 1927-11-23

Publications (1)

Publication Number Publication Date
GB301034A true GB301034A (en) 1930-02-21

Family

ID=6097542

Family Applications (1)

Application Number Title Priority Date Filing Date
GB34272/28A Expired GB301034A (en) 1927-11-23 1928-11-21 Apparatus for the communication of signals by means of acoustic high frequency oscillations

Country Status (1)

Country Link
GB (1) GB301034A (en)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2417829A (en) * 1942-12-31 1947-03-25 Bell Telephone Labor Inc Compressional wave signaling device
US2419196A (en) * 1940-05-03 1947-04-22 Submarine Signal Co Electroacoustic transducer
US2419197A (en) * 1940-05-03 1947-04-22 Submarine Signal Co Electroacoustic transducer
US2434648A (en) * 1943-06-02 1948-01-20 Bell Telephone Labor Inc Compressional wave translating device
US2452571A (en) * 1933-06-14 1948-11-02 Submarine Signal Co Sound signaling apparatus
US2466112A (en) * 1942-12-31 1949-04-05 Bell Telephone Labor Inc Compressional wave translating device
US2829361A (en) * 1945-10-01 1958-04-01 Gen Electric Electroacoustic transducer
US3005973A (en) * 1954-02-13 1961-10-24 Atlas Werke Ag Submarine locating system
US3067281A (en) * 1945-10-01 1962-12-04 Gen Electric Underwater object locator and viewer

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2452571A (en) * 1933-06-14 1948-11-02 Submarine Signal Co Sound signaling apparatus
US2419196A (en) * 1940-05-03 1947-04-22 Submarine Signal Co Electroacoustic transducer
US2419197A (en) * 1940-05-03 1947-04-22 Submarine Signal Co Electroacoustic transducer
US2417829A (en) * 1942-12-31 1947-03-25 Bell Telephone Labor Inc Compressional wave signaling device
US2466112A (en) * 1942-12-31 1949-04-05 Bell Telephone Labor Inc Compressional wave translating device
US2434648A (en) * 1943-06-02 1948-01-20 Bell Telephone Labor Inc Compressional wave translating device
US2829361A (en) * 1945-10-01 1958-04-01 Gen Electric Electroacoustic transducer
US3067281A (en) * 1945-10-01 1962-12-04 Gen Electric Underwater object locator and viewer
US3005973A (en) * 1954-02-13 1961-10-24 Atlas Werke Ag Submarine locating system

Similar Documents

Publication Publication Date Title
GB301034A (en) Apparatus for the communication of signals by means of acoustic high frequency oscillations
MY121247A (en) Apparatus and methods for cleaning and/or processing delicate parts
DE2541492A1 (en) ULTRASONIC CONVERTER
US3872421A (en) Standing wave acoustic parametric source
GB385255A (en) Improvements in or relating to reflector arrangements for use in ultra-short wave radio beam systems
GB655318A (en) Apparatus for examination of materials by means of ultra-sonic waves
US2893707A (en) Method of ultrasonic treatment and device
GB907060A (en)
JPS56147082A (en) Method and device for quantitative ultrasonic inspection using plural frequencies
JPS55120299A (en) Circular ultrasonic vibration element
GB542970A (en) Improvements in oscillation generation systems
SU85193A1 (en) The method of concentration of ultrasonic energy
GB417453A (en) Improvements in and relating to methods of producing photographic emulsions, and apparatus therefor
SU131181A1 (en) Etching method with the imposition of a sound floor
GB632286A (en) Improvements in or relating to apparatus for transmitting and receiving compressional wave energy
GB663625A (en) Improvements relating to methods and apparatus for modulating ultra-short waves
GB638368A (en) Improvements in and relating to methods of and apparatus for frequency modulation
GB494722A (en) Improvements in or relating to methods of generating ultra short electro-magnetic waves
JPS5382246A (en) Whip antenna with sleeve
AT236678B (en) Probe head device for material testing with ultrasonic waves
RU1796065C (en) Method of control over energy efficiency of parametric source of sound
GB641790A (en) Improvements in or relating to supersonic testing apparatus
US3035245A (en) Echo ranging system
SHEALY Parametric difference-frequency generation of sound in air(Parametric difference frequency generation of sound in air through interaction of two intense high frequency sound waves)[M. S. Thesis]
GB1258770A (en)