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GB1370423A - Sonar apparatus - Google Patents

Sonar apparatus

Info

Publication number
GB1370423A
GB1370423A GB3177170A GB3177170A GB1370423A GB 1370423 A GB1370423 A GB 1370423A GB 3177170 A GB3177170 A GB 3177170A GB 3177170 A GB3177170 A GB 3177170A GB 1370423 A GB1370423 A GB 1370423A
Authority
GB
United Kingdom
Prior art keywords
transducers
angles
reflector
groups
sonar apparatus
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
GB3177170A
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 GB3177170A priority Critical patent/GB1370423A/en
Publication of GB1370423A publication Critical patent/GB1370423A/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
    • 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
    • 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

Landscapes

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

Abstract

1370423 Sonar apparatus SMITHS INDUSTRIES Ltd 30 Sept 1971 [30 June 1970] 31771/70 Heading H4D A sonar apparatus includes an array of transducer means positioned in front of a reflector such that each transducer means is responsive to energy received via the reflector from a different direction and wherein there are a number of receiver channels coupled to the transducer means which subtend varying angles at the centre of curvature of the reflector. In a hydrographic sonar apparatus incorporating varying "focusing" as described in Specification 1,370,422, the receiver channels are coupled to groups of three adjacent transducers for near vertical angles, groups of two for mid-range angles and single transducers for large angles. Alternatively the groups of transducers may be combined into larger single transducers. Specifications 1,370,424, 1,234,237, 1,156,322, 1,147,192, 1,147,191 are also referred to.
GB3177170A 1970-06-30 1970-06-30 Sonar apparatus Expired GB1370423A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3177170A GB1370423A (en) 1970-06-30 1970-06-30 Sonar apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3177170A GB1370423A (en) 1970-06-30 1970-06-30 Sonar apparatus

Publications (1)

Publication Number Publication Date
GB1370423A true GB1370423A (en) 1974-10-16

Family

ID=10328164

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3177170A Expired GB1370423A (en) 1970-06-30 1970-06-30 Sonar apparatus

Country Status (1)

Country Link
GB (1) GB1370423A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2136124A (en) * 1983-03-01 1984-09-12 Plessey Co Plc Improvements in or Relating to Sonar Apparatus
RU2214657C2 (en) * 2001-03-11 2003-10-20 Федеральное государственное унитарное предприятие "Центральный научно-исследовательский институт "Морфизприбор" Method for parallel shaping of linear-antenna directivity characteristics
CN112805593A (en) * 2018-09-17 2021-05-14 臻迪科技股份有限公司 Transducer device, sonar module, and control method therefor

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2136124A (en) * 1983-03-01 1984-09-12 Plessey Co Plc Improvements in or Relating to Sonar Apparatus
RU2214657C2 (en) * 2001-03-11 2003-10-20 Федеральное государственное унитарное предприятие "Центральный научно-исследовательский институт "Морфизприбор" Method for parallel shaping of linear-antenna directivity characteristics
CN112805593A (en) * 2018-09-17 2021-05-14 臻迪科技股份有限公司 Transducer device, sonar module, and control method therefor

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Legal Events

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