GB1212016A - Improvements in or relating to digital echo sounders - Google Patents

Improvements in or relating to digital echo sounders

Info

Publication number
GB1212016A
GB1212016A GB2539167A GB2539167A GB1212016A GB 1212016 A GB1212016 A GB 1212016A GB 2539167 A GB2539167 A GB 2539167A GB 2539167 A GB2539167 A GB 2539167A GB 1212016 A GB1212016 A GB 1212016A
Authority
GB
United Kingdom
Prior art keywords
range
count
minimum
maximum
preset
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
GB2539167A
Inventor
Ian Alexander Leonard
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 Sounding Device Co Ltd
Original Assignee
Marconi Sounding Device Co Ltd
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 Sounding Device Co Ltd filed Critical Marconi Sounding Device Co Ltd
Priority to GB2539167A priority Critical patent/GB1212016A/en
Publication of GB1212016A publication Critical patent/GB1212016A/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
    • G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
    • G01S7/02—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S13/00
    • G01S7/28—Details of pulse systems
    • 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
    • G01S15/08—Systems for measuring distance only
    • G01S15/10—Systems for measuring distance only using transmission of interrupted, pulse-modulated waves
    • G01S15/14—Systems for measuring distance only using transmission of interrupted, pulse-modulated waves wherein a voltage or current pulse is initiated and terminated in accordance respectively with the pulse transmission and echo reception

Landscapes

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

Abstract

1,212,016. Electric selective signalling. MARCONI SOUNDING DEVICE CO. Ltd. March 4, 1968 [1 June, 1967], No. 25391/67. Heading.G4H. [Also in Division H4] A multi-range echo sounder has means for changing the range automatically in dependence on the count of digital pulses representing the measured depth. If the count lies above a preset maximum or below a preset minimum, as determined in a comparator, the range is increased, or decreased respectively, provided that the present range is not the maximum or minimum. The signal from the comparator passes via a normally open gate which is then inhibited for sufficiently long that a fresh count can be made on the new range. The preset maximum and minimum counts overlap to prevent hunting between ranges.
GB2539167A 1967-06-01 1967-06-01 Improvements in or relating to digital echo sounders Expired GB1212016A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2539167A GB1212016A (en) 1967-06-01 1967-06-01 Improvements in or relating to digital echo sounders

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2539167A GB1212016A (en) 1967-06-01 1967-06-01 Improvements in or relating to digital echo sounders

Publications (1)

Publication Number Publication Date
GB1212016A true GB1212016A (en) 1970-11-11

Family

ID=10226922

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2539167A Expired GB1212016A (en) 1967-06-01 1967-06-01 Improvements in or relating to digital echo sounders

Country Status (1)

Country Link
GB (1) GB1212016A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3787802A (en) * 1972-05-08 1974-01-22 Heath Co Automatic range switching for digital depth sounders

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3787802A (en) * 1972-05-08 1974-01-22 Heath Co Automatic range switching for digital depth sounders

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Legal Events

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