NO119514B - - Google Patents

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Publication number
NO119514B
NO119514B NO161408A NO16140866A NO119514B NO 119514 B NO119514 B NO 119514B NO 161408 A NO161408 A NO 161408A NO 16140866 A NO16140866 A NO 16140866A NO 119514 B NO119514 B NO 119514B
Authority
NO
Norway
Prior art keywords
voltage
echo
threshold value
transistor
fish
Prior art date
Application number
NO161408A
Other languages
English (en)
Norwegian (no)
Inventor
H Drenkelford
S Thieme
Original Assignee
Electroacustic Gmbh
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 Electroacustic Gmbh filed Critical Electroacustic Gmbh
Publication of NO119514B publication Critical patent/NO119514B/no

Links

Classifications

    • GPHYSICS
    • G01MEASURING; TESTING
    • G01SRADIO 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
    • G01S7/00Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
    • G01S7/52Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S15/00
    • G01S7/56Display arrangements
    • G01S7/60Display arrangements for providing a permanent recording
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01SRADIO 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
    • G01S15/00Systems using the reflection or reradiation of acoustic waves, e.g. sonar systems
    • G01S15/02Systems using the reflection or reradiation of acoustic waves, e.g. sonar systems using reflection of acoustic waves
    • G01S15/06Systems determining the position data of a target
    • G01S15/08Systems for measuring distance only
    • G01S15/10Systems for measuring distance only using transmission of interrupted, pulse-modulated waves
    • G01S15/101Particularities of the measurement of distance
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01SRADIO 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
    • G01S7/00Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
    • G01S7/52Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S15/00
    • G01S7/523Details of pulse systems
    • G01S7/526Receivers
    • G01S7/527Extracting wanted echo signals

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)
  • Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
NO161408A 1965-11-29 1966-01-25 NO119514B (en, 2012)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEE0030560 1965-11-29

Publications (1)

Publication Number Publication Date
NO119514B true NO119514B (en, 2012) 1970-05-25

Family

ID=7074585

Family Applications (1)

Application Number Title Priority Date Filing Date
NO161408A NO119514B (en, 2012) 1965-11-29 1966-01-25

Country Status (10)

Country Link
US (1) US3440598A (en, 2012)
BE (1) BE686651A (en, 2012)
DE (1) DE1516629B2 (en, 2012)
DK (1) DK109827C (en, 2012)
ES (1) ES330351A1 (en, 2012)
FR (1) FR1601732A (en, 2012)
GB (1) GB1136832A (en, 2012)
IS (1) IS677B6 (en, 2012)
NO (1) NO119514B (en, 2012)
SE (1) SE358967B (en, 2012)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA941948A (en) * 1970-11-10 1974-02-12 Raymond Brede Echo sounding apparatus with automatically regulated receiver gain
US4052692A (en) * 1975-11-24 1977-10-04 Freeman Arthur W Accentuator circuit for underwater acoustical devices
US4369508A (en) * 1978-12-15 1983-01-18 Lowrance Electronics, Inc. Sonar having signal amplitude differentiation and noise suppression
DE3133080C2 (de) * 1981-08-21 1983-05-26 Honeywell-Elac-Nautik Gmbh, 2300 Kiel Schaltungsanordnung für Echolotgeräte
CA1201797A (en) * 1983-01-20 1986-03-11 Frederick H.K. Rambow Circuit for controlling the magnitude of amplification of signals produced by a borehole televiewer
DE3633420A1 (de) * 1986-10-01 1988-04-07 Krupp Gmbh Echolot

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3072882A (en) * 1958-09-04 1963-01-08 Raytheon Co Echo ranger with bottom signal amplitude compressor
US3017606A (en) * 1958-09-10 1962-01-16 Kietz Hans Echo sounding system

Also Published As

Publication number Publication date
BE686651A (en, 2012) 1967-02-15
IS1544A7 (is) 1967-05-30
ES330351A1 (es) 1967-06-16
IS677B6 (is) 1969-03-26
DE1516629B2 (de) 1970-10-29
DK109827C (da) 1968-07-08
DE1516629A1 (de) 1969-06-12
GB1136832A (en) 1968-12-18
US3440598A (en) 1969-04-22
FR1601732A (en, 2012) 1970-09-14
SE358967B (en, 2012) 1973-08-13

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