GB173951A - Improvements in and relating to directional hydrophones - Google Patents

Improvements in and relating to directional hydrophones

Info

Publication number
GB173951A
GB173951A GB3382720A GB3382720A GB173951A GB 173951 A GB173951 A GB 173951A GB 3382720 A GB3382720 A GB 3382720A GB 3382720 A GB3382720 A GB 3382720A GB 173951 A GB173951 A GB 173951A
Authority
GB
United Kingdom
Prior art keywords
relating
baffle
air
directional
hydrophone
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
GB3382720A
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 GB3382720A priority Critical patent/GB173951A/en
Publication of GB173951A publication Critical patent/GB173951A/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 Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
  • Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)

Abstract

173,951. Hopwood, F. L. Nov. 30, 1920. Detecting subaqueous sounds.-In a directional hydrophone the sensitiveness is increased by arranging on opposite sides an air-backed diaphragm and a baffle of any type. In the example illustrated, the hydrophone carcase 1 is mounted on threaded rods 4 which support at one end a casing 5 carrying an air-backed diaphragm 6 and at the other a baffle 8 of known construction.
GB3382720A 1920-11-30 1920-11-30 Improvements in and relating to directional hydrophones Expired GB173951A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3382720A GB173951A (en) 1920-11-30 1920-11-30 Improvements in and relating to directional hydrophones

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3382720A GB173951A (en) 1920-11-30 1920-11-30 Improvements in and relating to directional hydrophones

Publications (1)

Publication Number Publication Date
GB173951A true GB173951A (en) 1922-01-19

Family

ID=10357951

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3382720A Expired GB173951A (en) 1920-11-30 1920-11-30 Improvements in and relating to directional hydrophones

Country Status (1)

Country Link
GB (1) GB173951A (en)

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