GB711469A - Pulse echo locating apparatus employing pulses of acoustic vibrations, more particularly for locating shoals of fish or like purposes - Google Patents
Pulse echo locating apparatus employing pulses of acoustic vibrations, more particularly for locating shoals of fish or like purposesInfo
- Publication number
- GB711469A GB711469A GB1805250A GB1805250A GB711469A GB 711469 A GB711469 A GB 711469A GB 1805250 A GB1805250 A GB 1805250A GB 1805250 A GB1805250 A GB 1805250A GB 711469 A GB711469 A GB 711469A
- Authority
- GB
- United Kingdom
- Prior art keywords
- disc
- echo
- arm
- pulse
- contacts
- 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
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
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Computer Networks & Wireless Communication (AREA)
- General Physics & Mathematics (AREA)
- Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
Abstract
711.469. Automatic control systems. ELECTROACUSTIC GES. July 19, 1950 [July 19, 1949; March 30, 1950; May 12, 1950; June 12, 1950], No. 18052/50. Class 38(4) [Also in Group XXXVIII] In an underwater pulse-echo ranging system for indicating echoes from reflecting bodies within a selectable range increment (see Group XXXVIII) the range increment is displayed on the high-speed time base of a cathode-ray tube and the time interval between the transmission of a pulse and initiation of the time base is automatically controlled by the echo pulse so that the echo is displayed at a predetermined position on the time base. The transmitter is triggered periodically by a switch operated by a rotating cam disc, Fig. 3 (not shown), and the time base is initiated by the closure of a second switch whose angularly position around the periphery of the cam disc is controlled by the angular position of a disc 25 bearing two semi-circular contacts 23, 24 over which an arm 21 rotates synchronously with the cam disc. Contacts 23, 24 are connected to H.T. supplies and also via condensers 32, 33 to the coils of relays 30, 31 whose associated contacts 28, 29 are in series with the two field windings of a reversible D.C. motor 27 which drives disc 25. A received sonic echo pulse is converted into a corresponding electrical pulse by an electroaccoustic transducer 16 and applied to trigger a thyratron 17 whose anode is connected to the rotating arm 21. If an echo is received when arm 21 is contacting 23, condenser 32 is discharged and relay 30 operates causing disc 25 to rotate in one direction and similarly the disc is rotated in the opposite direction when arm 21 is contacting 24 so that the disc assumes an equilibrium condition such that arm 21 is intermediate between contacts 23, 24 at the time of echo reception, the angular position of the disc then indicating 'the range of the echo.
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE944477T | 1949-07-19 | ||
DEE904A DE940034C (en) | 1949-07-19 | 1950-03-30 | Echosounder system with display through a brown tube |
DEE1173A DE951136C (en) | 1949-07-19 | 1950-05-12 | Method and device for echo sounding with underwater sound using a Braun tube as display device |
DEE1328A DE950053C (en) | 1949-07-19 | 1950-06-12 | Device for echo sounding with underwater sound with acoustic display |
Publications (1)
Publication Number | Publication Date |
---|---|
GB711469A true GB711469A (en) | 1954-07-07 |
Family
ID=42791097
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1805250A Expired GB711469A (en) | 1949-07-19 | 1950-07-19 | Pulse echo locating apparatus employing pulses of acoustic vibrations, more particularly for locating shoals of fish or like purposes |
Country Status (4)
Country | Link |
---|---|
BE (1) | BE503067A (en) |
DE (4) | DE944477C (en) |
FR (1) | FR1027967A (en) |
GB (1) | GB711469A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2157436A (en) * | 1984-04-06 | 1985-10-23 | Bygg Och Transportekonomie Ab | Detecting obstacles in the operation of remote-controlled machines |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE975073C (en) * | 1953-12-17 | 1961-08-03 | Atlas Werke Ag | Circuit arrangement for an echo-sounder display device |
DE1211518B (en) * | 1955-04-05 | 1966-02-24 | Phil Nat Siegfried Fahrentholz | Calibratable acoustic echo sounder device and method of using it |
US3035245A (en) * | 1955-04-27 | 1962-05-15 | Jr Louis R Padberg | Echo ranging system |
DE1087051B (en) * | 1955-05-02 | 1960-08-11 | Electroacustic Gmbh | Device for displaying the direction and distance of an object with underwater sound on the screen of a cathode ray tube |
DE1141567B (en) * | 1956-08-20 | 1962-12-20 | Phil Nat Siegfried Fahrentholz | Echosounder device with a luminescent Braun tube |
NL227488A (en) * | 1957-05-03 | |||
DE1272186B (en) * | 1957-10-04 | 1968-07-04 | Dr Siegfried Fahrentholz | Echosounder device with display of the echo on a cathode ray tube |
DE1153300B (en) * | 1958-12-11 | 1963-08-22 | Phil Nat Siegfried Fahrentholz | Echosounder device with at least one Braun tube |
DE1289460B (en) * | 1963-12-18 | 1969-02-13 | Smith & Sons Ltd S | Echosounder for underwater sound |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1648058A (en) * | 1925-11-25 | 1927-11-08 | American Telephone & Telegraph | Electrovision |
GB467997A (en) * | 1935-12-27 | 1937-06-28 | Marconi Wireless Telegraph Co | Improvements in or relating to echo sounding apparatus |
DE767425C (en) * | 1939-05-14 | 1952-08-28 | Atlas Werke Ag | Method and device for determining the direction and distance of objects using the echo method |
US2473974A (en) * | 1944-05-18 | 1949-06-21 | Schuck Oscar Hugo | Underwater sound detecting and indicating system |
US2484618A (en) * | 1944-08-26 | 1949-10-11 | Bell Telephone Labor Inc | Wave receiving system |
-
1949
- 1949-07-19 DE DEP49445D patent/DE944477C/en not_active Expired
-
1950
- 1950-03-30 DE DEE904A patent/DE940034C/en not_active Expired
- 1950-05-12 DE DEE1173A patent/DE951136C/en not_active Expired
- 1950-06-12 DE DEE1328A patent/DE950053C/en not_active Expired
- 1950-07-19 FR FR1027967D patent/FR1027967A/en not_active Expired
- 1950-07-19 GB GB1805250A patent/GB711469A/en not_active Expired
-
1951
- 1951-05-07 BE BE503067A patent/BE503067A/en unknown
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2157436A (en) * | 1984-04-06 | 1985-10-23 | Bygg Och Transportekonomie Ab | Detecting obstacles in the operation of remote-controlled machines |
Also Published As
Publication number | Publication date |
---|---|
DE940034C (en) | 1956-03-08 |
DE944477C (en) | 1956-06-14 |
FR1027967A (en) | 1953-05-18 |
DE950053C (en) | 1956-10-04 |
BE503067A (en) | 1951-05-31 |
DE951136C (en) | 1956-10-25 |
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