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GB490322A - Improved method and apparatus for detecting sound sources - Google Patents

Improved method and apparatus for detecting sound sources

Info

Publication number
GB490322A
GB490322A GB1451737A GB1451737A GB490322A GB 490322 A GB490322 A GB 490322A GB 1451737 A GB1451737 A GB 1451737A GB 1451737 A GB1451737 A GB 1451737A GB 490322 A GB490322 A GB 490322A
Authority
GB
United Kingdom
Prior art keywords
images
screens
improved method
pair
sound sources
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
GB1451737A
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 GB1451737A priority Critical patent/GB490322A/en
Priority to FR838402D priority patent/FR838402A/en
Publication of GB490322A publication Critical patent/GB490322A/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)
  • Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)

Abstract

490,322. Locating sounds. SCRUBY, B., and ROBERTS, A. J. May 25, 1937, No. 14517. [Class 118 (ii)] In a system for determining the direction of a sound source, microphones 4, 5, mounted on a rotatable beam 11 are connected to thermionic amplifiers 15, 16 feeding cathode-ray tubes 19, 20, which give images of the sound waves on their screens. The screens are focused on a viewing screen 33, the light being reflected from a rapidly rotating inclined mirror 23. The final images 32 may be viewed directly or through a lens 35 and are brought into coincidence by rotating the beam 11 to remove the phase difference. In a modification, a right-angled prism is used in place of the mirror 23. The images on the screen 33 may be adjacent, or superimposed for accurate matching. As applied to the detection of aircraft a third sound receiver is necessary or a pair of receivers may be added arranged at right-angles to the original pair.
GB1451737A 1937-05-25 1937-05-25 Improved method and apparatus for detecting sound sources Expired GB490322A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB1451737A GB490322A (en) 1937-05-25 1937-05-25 Improved method and apparatus for detecting sound sources
FR838402D FR838402A (en) 1937-05-25 1938-05-24 Method and devices for detecting sound sources

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1451737A GB490322A (en) 1937-05-25 1937-05-25 Improved method and apparatus for detecting sound sources

Publications (1)

Publication Number Publication Date
GB490322A true GB490322A (en) 1938-08-12

Family

ID=10042627

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1451737A Expired GB490322A (en) 1937-05-25 1937-05-25 Improved method and apparatus for detecting sound sources

Country Status (2)

Country Link
FR (1) FR838402A (en)
GB (1) GB490322A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2470114A (en) * 1946-07-12 1949-05-17 Robert M Sherwood Optical sound bearing system
EP1331490A1 (en) * 2000-10-02 2003-07-30 Chubu Electric Power Co., Inc. Sound source probing system
US7162043B2 (en) 2000-10-02 2007-01-09 Chubu Electric Power Co., Inc. Microphone array sound source location system with imaging overlay

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2032104B (en) * 1978-10-23 1983-02-02 Shell Int Research Marine pipeline or cable location

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2470114A (en) * 1946-07-12 1949-05-17 Robert M Sherwood Optical sound bearing system
EP1331490A1 (en) * 2000-10-02 2003-07-30 Chubu Electric Power Co., Inc. Sound source probing system
EP1331490A4 (en) * 2000-10-02 2005-08-03 Chubu Electric Power SYSTEM FOR DETECTING A SOUND SOURCE
US7162043B2 (en) 2000-10-02 2007-01-09 Chubu Electric Power Co., Inc. Microphone array sound source location system with imaging overlay

Also Published As

Publication number Publication date
FR838402A (en) 1939-03-06

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