GB1370422A - Sonar apparatus - Google Patents

Sonar apparatus

Info

Publication number
GB1370422A
GB1370422A GB3177070A GB3177070A GB1370422A GB 1370422 A GB1370422 A GB 1370422A GB 3177070 A GB3177070 A GB 3177070A GB 3177070 A GB3177070 A GB 3177070A GB 1370422 A GB1370422 A GB 1370422A
Authority
GB
United Kingdom
Prior art keywords
transducers
reflector
sonar
varying
display
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
GB3177070A
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.)
Smiths Group PLC
Original Assignee
Smiths Group PLC
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 Smiths Group PLC filed Critical Smiths Group PLC
Priority to GB2255074A priority Critical patent/GB1370424A/en
Priority to GB3177070A priority patent/GB1370422A/en
Publication of GB1370422A publication Critical patent/GB1370422A/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
    • G01S3/00—Direction-finders for determining the direction from which infrasonic, sonic, ultrasonic, or electromagnetic waves, or particle emission, not having a directional significance, are being received
    • G01S3/80—Direction-finders for determining the direction from which infrasonic, sonic, ultrasonic, or electromagnetic waves, or particle emission, not having a directional significance, are being received using ultrasonic, sonic or infrasonic waves
    • G01S3/8006—Multi-channel systems specially adapted for direction-finding, i.e. having a single aerial system capable of giving simultaneous indications of the directions of different signals
    • 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
    • G01S15/00—Systems using the reflection or reradiation of acoustic waves, e.g. sonar systems
    • G01S15/02—Systems using the reflection or reradiation of acoustic waves, e.g. sonar systems using reflection of acoustic waves
    • G01S15/06—Systems determining the position data of a target
    • G01S15/42—Simultaneous measurement of distance and other co-ordinates
    • 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
    • G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
    • G01S7/52—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S15/00
    • G01S7/56—Display arrangements
    • G01S7/62—Cathode-ray tube displays
    • G01S7/6218—Cathode-ray tube displays providing two-dimensional coordinated display of distance and direction
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G10K11/18—Methods or devices for transmitting, conducting or directing sound
    • G10K11/26—Sound-focusing or directing, e.g. scanning
    • G10K11/28—Sound-focusing or directing, e.g. scanning using reflection, e.g. parabolic reflectors

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • General Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Multimedia (AREA)
  • Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)

Abstract

1370422 Sonar systems SMITHS INDUSTRIES Ltd 30 Sept 1971 [30 June 1970] 31770/70 Heading H4D A sonar system includes an array of transducers in front of a spherical or cylindrical reflector such that each transducer receives acoustic energy via the reflector from different directions through a surveillance sector and wherein the radial distance of the transducers from the reflector is varied throughout the array. The varying distances d1-d230 of the transducers 1 from the reflector 2 focus the transducers at varying ranges. Thus in a side looking sonar (Fig. 2, not shown) the transducers are focused on points at increasing plan range on the sea-bed. The transmissions may be C.W. or pulsed, the energizing of the transducers may be simultaneous or sequential and at varying carrier frequency. Reflected signals are passed via individual channels 3, 7 to a display unit 8 comprising a row of gallium arsenide or neon indicators (Fig. 4) which are continuously scanned by a television camera. The display co-ordinates may be processed to provide a polar co-ordinate display. Alternatively the received signals may be processed digitally. Specifications 1,370,424, 1,370,423, 1,234,237, 1,156,322, 1,147,192, 1,147,191 are referred to.
GB3177070A 1971-09-30 1971-09-30 Sonar apparatus Expired GB1370422A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB2255074A GB1370424A (en) 1971-09-30 1971-09-30 Sonar apparatus
GB3177070A GB1370422A (en) 1971-09-30 1971-09-30 Sonar apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3177070A GB1370422A (en) 1971-09-30 1971-09-30 Sonar apparatus

Publications (1)

Publication Number Publication Date
GB1370422A true GB1370422A (en) 1974-10-16

Family

ID=10328152

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3177070A Expired GB1370422A (en) 1971-09-30 1971-09-30 Sonar apparatus

Country Status (1)

Country Link
GB (1) GB1370422A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009062565A1 (en) * 2007-11-12 2009-05-22 Atlas Elektronik Gmbh Submarine antenna
CN111220969A (en) * 2019-10-28 2020-06-02 浙江优威科技有限公司 Land networking training and performance testing integrated device of underwater communication sonar

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009062565A1 (en) * 2007-11-12 2009-05-22 Atlas Elektronik Gmbh Submarine antenna
US8483013B2 (en) 2007-11-12 2013-07-09 Atlas Elektronik Gmbh Submarine antenna
CN111220969A (en) * 2019-10-28 2020-06-02 浙江优威科技有限公司 Land networking training and performance testing integrated device of underwater communication sonar
CN111220969B (en) * 2019-10-28 2023-06-30 浙江优威科技有限公司 Land networking training and performance testing integrated device of underwater communication sonar

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees