GB694176A - Improvements in or relating to echo sounders - Google Patents

Improvements in or relating to echo sounders

Info

Publication number
GB694176A
GB694176A GB7661/50A GB766150A GB694176A GB 694176 A GB694176 A GB 694176A GB 7661/50 A GB7661/50 A GB 7661/50A GB 766150 A GB766150 A GB 766150A GB 694176 A GB694176 A GB 694176A
Authority
GB
United Kingdom
Prior art keywords
capacitors
series
voltage
charged
parallel
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
GB7661/50A
Inventor
Denis Hugh Rolfe
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.)
Marconis Wireless Telegraph Co Ltd
BAE Systems Electronics Ltd
Original Assignee
Marconis Wireless Telegraph Co Ltd
Marconi 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
Priority to BE502084D priority Critical patent/BE502084A/xx
Application filed by Marconis Wireless Telegraph Co Ltd, Marconi Co Ltd filed Critical Marconis Wireless Telegraph Co Ltd
Priority to GB7661/50A priority patent/GB694176A/en
Priority to FR1034782D priority patent/FR1034782A/en
Priority to US215200A priority patent/US2719280A/en
Priority to ES0197050A priority patent/ES197050A1/en
Publication of GB694176A publication Critical patent/GB694176A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K3/00—Circuits for generating electric pulses; Monostable, bistable or multistable circuits
    • H03K3/02—Generators characterised by the type of circuit or by the means used for producing pulses
    • H03K3/53—Generators characterised by the type of circuit or by the means used for producing pulses by the use of an energy-accumulating element discharged through the load by a switching device controlled by an external signal and not incorporating positive feedback
    • H03K3/55—Generators characterised by the type of circuit or by the means used for producing pulses by the use of an energy-accumulating element discharged through the load by a switching device controlled by an external signal and not incorporating positive feedback the switching device being a gas-filled tube having a control electrode
    • 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
    • G01S15/88—Sonar systems specially adapted for specific applications
    • G01S15/96—Sonar systems specially adapted for specific applications for locating fish
    • 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
    • G01S7/52—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S15/00
    • G01S7/523—Details of pulse systems
    • G01S7/524—Transmitters

Landscapes

  • Engineering & Computer Science (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Physics & Mathematics (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • General Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
  • Electrotherapy Devices (AREA)
  • Fire Alarms (AREA)

Abstract

694,176. Echo-sounders. MARCONI'S WIRELESS TELEGRAPH CO., Ltd. Nov. 16, 1950 [March 27, 1950], No. 7661/50. Class 118 (ii) [Also in Group XL(c)] A high voltage, high peak current pulse is produced in an echo sounder t'ransmitter by charging a number of capacitors in parallel from a voltage source and subsequently discharging them in series through the transmitter. The discharge is initiated by triggering one of a number of discharge devices which are connected so that the firing of the first one causes the others to fire in succession as the voltages of the charged capacitors are progressively added in series across them. Fig. 1 shows a pulse generator in which capacitors 15, 18 are charged in parallel to the voltage of the D.C. source across terminals 1, 2 via resistors 3, 16 and 17 whilst valves 20 and 4 are non-conductive. A triggering pulse applied by closing switch 27 causes valve 20 to fire so that the voltage of anode 6 rises and valve 4 fires the capacitors 18 and 15 discharging in series through the transmitter coil T. In a modification shown in Fig. 2 capacitors C1-C4 are charged in parallel and when valve R1 is triggered the valves R2-R4 are successively rendered conducting so that capacitors C1-C4 alternately discharge in series through the transmitter coil T.
GB7661/50A 1950-03-27 1950-03-27 Improvements in or relating to echo sounders Expired GB694176A (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
BE502084D BE502084A (en) 1950-03-27
GB7661/50A GB694176A (en) 1950-03-27 1950-03-27 Improvements in or relating to echo sounders
FR1034782D FR1034782A (en) 1950-03-27 1951-02-07 Echo sounder refinements
US215200A US2719280A (en) 1950-03-27 1951-03-13 Echo sounders
ES0197050A ES197050A1 (en) 1950-03-27 1951-03-17 IMPROVEMENTS IN THE SOUND PROBES OR ECO-PROBES

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB7661/50A GB694176A (en) 1950-03-27 1950-03-27 Improvements in or relating to echo sounders

Publications (1)

Publication Number Publication Date
GB694176A true GB694176A (en) 1953-07-15

Family

ID=9837387

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7661/50A Expired GB694176A (en) 1950-03-27 1950-03-27 Improvements in or relating to echo sounders

Country Status (5)

Country Link
US (1) US2719280A (en)
BE (1) BE502084A (en)
ES (1) ES197050A1 (en)
FR (1) FR1034782A (en)
GB (1) GB694176A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE954135C (en) * 1953-02-17 1956-12-13 Atlas Werke Ag Circuit arrangement for shock excitation by capacitor discharge
US3424268A (en) * 1959-08-26 1969-01-28 Shell Oil Co Velocity well logging

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2110015A (en) * 1932-03-09 1938-03-01 Gen Electric Electric timing and counting device
US2167536A (en) * 1937-06-09 1939-07-25 Gen Electric Submarine signaling

Also Published As

Publication number Publication date
ES197050A1 (en) 1953-04-01
FR1034782A (en) 1953-07-31
BE502084A (en)
US2719280A (en) 1955-09-27

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