GB344967A - Improvements in and relating to sound ranging devices - Google Patents

Improvements in and relating to sound ranging devices

Info

Publication number
GB344967A
GB344967A GB3940029A GB3940029A GB344967A GB 344967 A GB344967 A GB 344967A GB 3940029 A GB3940029 A GB 3940029A GB 3940029 A GB3940029 A GB 3940029A GB 344967 A GB344967 A GB 344967A
Authority
GB
United Kingdom
Prior art keywords
fixed
sound
moving
relating
ranging devices
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
GB3940029A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to GB3940029A priority Critical patent/GB344967A/en
Publication of GB344967A publication Critical patent/GB344967A/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)
  • Geophysics And Detection Of Objects (AREA)

Abstract

344,967. Current meters. FREEDMAN, P., 70, Durley Road, Stoke Newington, London. Dec. 24, 1929, No. 39400. [Class 37.] Apparatus for determining the direction of a sound comprises a group of four sound receivers 4 located as shown and adapted to convert the sound impulses into electric current which is supplied through amplifiers 8, transformers 7, and rectifiers 9 to the four fixed coils 6 of an indicator instrument having for its moving system a permanent magnet 5 actuating a pointer 10, which may be solid or a beam of light. The fixed and moving systems may be interchanged. A modified indicator is described employing four fixed and four moving coils spaced about a vertical axis.
GB3940029A 1929-12-24 1929-12-24 Improvements in and relating to sound ranging devices Expired GB344967A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3940029A GB344967A (en) 1929-12-24 1929-12-24 Improvements in and relating to sound ranging devices

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3940029A GB344967A (en) 1929-12-24 1929-12-24 Improvements in and relating to sound ranging devices

Publications (1)

Publication Number Publication Date
GB344967A true GB344967A (en) 1931-03-19

Family

ID=10409336

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3940029A Expired GB344967A (en) 1929-12-24 1929-12-24 Improvements in and relating to sound ranging devices

Country Status (1)

Country Link
GB (1) GB344967A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2422446A (en) * 1941-05-15 1947-06-17 Bendix Aviat Corp Sonic direction finding
US2498772A (en) * 1941-05-15 1950-02-28 Bendix Aviat Corp Aerial torpedo
US2529658A (en) * 1944-01-31 1950-11-14 Brush Dev Co Transducer and system
EP1737265A1 (en) * 2005-06-23 2006-12-27 AKG Acoustics GmbH Determination of the position of sound sources
US8345898B2 (en) 2008-02-26 2013-01-01 Akg Acoustics Gmbh Transducer assembly
US8472639B2 (en) 2007-11-13 2013-06-25 Akg Acoustics Gmbh Microphone arrangement having more than one pressure gradient transducer

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2422446A (en) * 1941-05-15 1947-06-17 Bendix Aviat Corp Sonic direction finding
US2498772A (en) * 1941-05-15 1950-02-28 Bendix Aviat Corp Aerial torpedo
US2529658A (en) * 1944-01-31 1950-11-14 Brush Dev Co Transducer and system
EP1737265A1 (en) * 2005-06-23 2006-12-27 AKG Acoustics GmbH Determination of the position of sound sources
WO2006136410A1 (en) * 2005-06-23 2006-12-28 Akg Acoustics Gmbh Determination of the position of sound sources
JP2009509361A (en) * 2005-06-23 2009-03-05 エーケージー アコースティックス ゲーエムベーハー Determination of the position of the sound source
US8170260B2 (en) 2005-06-23 2012-05-01 Akg Acoustics Gmbh System for determining the position of sound sources
US8472639B2 (en) 2007-11-13 2013-06-25 Akg Acoustics Gmbh Microphone arrangement having more than one pressure gradient transducer
US8345898B2 (en) 2008-02-26 2013-01-01 Akg Acoustics Gmbh Transducer assembly

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