GB889356A - Improvements in or relating to sounding devices - Google Patents

Improvements in or relating to sounding devices

Info

Publication number
GB889356A
GB889356A GB16960/59A GB1696059A GB889356A GB 889356 A GB889356 A GB 889356A GB 16960/59 A GB16960/59 A GB 16960/59A GB 1696059 A GB1696059 A GB 1696059A GB 889356 A GB889356 A GB 889356A
Authority
GB
United Kingdom
Prior art keywords
electrodes
hull
bridge
coated
ship
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
GB16960/59A
Inventor
Alan John Thomas
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.)
MARCONI INTERNAT MARINE COMM C
Original Assignee
MARCONI INTERNAT MARINE COMM C
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 MARCONI INTERNAT MARINE COMM C filed Critical MARCONI INTERNAT MARINE COMM C
Priority to GB16960/59A priority Critical patent/GB889356A/en
Publication of GB889356A publication Critical patent/GB889356A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
    • G01V3/00—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation
    • G01V3/02—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation operating with propagation of electric current
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A90/00—Technologies having an indirect contribution to adaptation to climate change
    • Y02A90/30—Assessment of water resources

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Geology (AREA)
  • Remote Sensing (AREA)
  • Physics & Mathematics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Geophysics (AREA)
  • Prevention Of Electric Corrosion (AREA)

Abstract

889,356. Determining liquid levels. MARCONI INTERNATIONAL MARINE COMMUNICATION CO. Ltd. May 10, 1960 [May 19, 1959], No. 16960/59. Class 37. A sounding device for measuring shallow depths of water beneath a ship comprises three electrodes 1-3, Fig. 1, two of which, 1, 2, are widely spaced in comparison with 2 and 3, and an electrical bridge arrangement, Fig. 3, wherein the resistance between electrodes 2 and 3 serves as a reference. The bridge, which may be energized by A.C. of 100-200 volts at 50-60 cycles includes a variable resistor R2 which may be adjusted for zero output in either very shallow or very deep water, the former being more accurate. The output from the bridge is applied to an instrument J calibrated in depth via linear and logarithmic amplifiers A, LA and a cathode follower CF. Electrode 1, Fig. 2, of brass, coated in turn with silver and rhodium and having a conical portion IG with a screwed extension ID is drawn tightly into an insulated seating IE in a member IA welded to the ship's bottom, and is in effect, recessed into the hull. In order to reduce the short-circuiting effect of a metal hull, the hull may be coated with a bitumastic compound for 6 feet around the electrodes. Specification 121,434 is referred to.
GB16960/59A 1959-05-19 1959-05-19 Improvements in or relating to sounding devices Expired GB889356A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB16960/59A GB889356A (en) 1959-05-19 1959-05-19 Improvements in or relating to sounding devices

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB16960/59A GB889356A (en) 1959-05-19 1959-05-19 Improvements in or relating to sounding devices

Publications (1)

Publication Number Publication Date
GB889356A true GB889356A (en) 1962-02-14

Family

ID=10086750

Family Applications (1)

Application Number Title Priority Date Filing Date
GB16960/59A Expired GB889356A (en) 1959-05-19 1959-05-19 Improvements in or relating to sounding devices

Country Status (1)

Country Link
GB (1) GB889356A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3562633A (en) * 1967-10-23 1971-02-09 William H Swain Co Transmitter and receiver electrode method and apparatus for sensing presence and proximity of underwater obstructions
US5001485A (en) * 1968-12-20 1991-03-19 The United States Of America, As Represented By The Secretary Of The Navy Magnetic field generator

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3562633A (en) * 1967-10-23 1971-02-09 William H Swain Co Transmitter and receiver electrode method and apparatus for sensing presence and proximity of underwater obstructions
US5001485A (en) * 1968-12-20 1991-03-19 The United States Of America, As Represented By The Secretary Of The Navy Magnetic field generator

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