US3473500A - Support for echo sounders - Google Patents

Support for echo sounders Download PDF

Info

Publication number
US3473500A
US3473500A US707372A US3473500DA US3473500A US 3473500 A US3473500 A US 3473500A US 707372 A US707372 A US 707372A US 3473500D A US3473500D A US 3473500DA US 3473500 A US3473500 A US 3473500A
Authority
US
United States
Prior art keywords
ship
outriggers
outrigger
water
echo
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 - Lifetime
Application number
US707372A
Other languages
English (en)
Inventor
Hans Kietz
Karl Emil Johannsen
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.)
Fried Krupp AG
Original Assignee
Fried Krupp AG
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 Fried Krupp AG filed Critical Fried Krupp AG
Application granted granted Critical
Publication of US3473500A publication Critical patent/US3473500A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G10K11/004—Mounting transducers, e.g. provided with mechanical moving or orienting device
    • G10K11/006—Transducer mounting in underwater equipment, e.g. sonobuoys
    • G10K11/008—Arrays of transducers
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G10K11/18—Methods or devices for transmitting, conducting or directing sound
    • G10K11/26—Sound-focusing or directing, e.g. scanning
    • G10K11/35—Sound-focusing or directing, e.g. scanning using mechanical steering of transducers or their beams
    • G10K11/352—Sound-focusing or directing, e.g. scanning using mechanical steering of transducers or their beams by moving the transducer
    • G10K11/355—Arcuate movement

Definitions

  • the support apparatus includes outriggers, along which the echo sounders are disposed, which are connected to a surface ship and which, in their operational position, extend out from the ship transversely to the direction in which the ship is moving.
  • This invention relates to support apparatus for a plurality of echo sounders used to map the contour of the floor of a body of water and, more particularly, to support apparatus having outriggers along which the echo sounders are disposed.
  • the outriggers are connected to a ship. In their operational position, the outrig ers are disposed transversely to the direction in which the ship is moving.
  • the support apparatus for echo sounders above the surface of the water the floor of which is being mapped.
  • Such an arrangement provides outriggers which extend out from the ship but the support apparatus 'of which are at all operational times above the surface of the water.
  • the echo sounders are attached to holders provided on the support part.
  • the holders reach into the water from the support apparatus above the surface of the water.
  • the support apparatus according to this arrangement, are partially supported by swivel bearings on the ship and partially by one or a plurality of floats in the water.
  • the floats In order that such a support will be able to absorb the various dynamic forces acting on it, and particularly on those portions of its body which are submerged when the ship is moving, the floats must be relatively large. This results in the rather significant disadvantage that the vessel, which is usually small, carrying the supporting apparatus with the echo sounders can hardly produce the necessary power to attain the required speed for the surveying trip.
  • the outriggers are not only pivotally mounted around a vertical axis bearing on the ship, but are also provided with a joint having a horizontal axis in the body of the outrigger itself.
  • Such a construction enables the outriggers together with its supporting floats to maintain its extended, relatively horizontal, position when the ship is rolling. Under this arrangement the depth to which the echo sounders are submerged is determined solely by the floats. This arrangement presents some problems, due to the fact that the echo sounders require depth adjustments to be accurate to within :5 cm.
  • the outriggers according to this construction are restricted in their movement in a downward direction by the cable but are free to move in an upward direction.
  • the weight of each outrigger itself will function to hold the outrigger in a lower position, the limit of which is determined by the cable.
  • the dynamic downward-pulling forces serve to hold the outriggers in this lower position.
  • An object of the present invention is to provide a relatively simple support apparatus to avoid the drawbacks mentioned in the preceding discussion.
  • the present invention proposes to construct outriggers which are entirely under water and serve, essentially, as underwater floats. These outriggers are rigidly connected to the ship.
  • the outriggers of the invention are so constructed that they have generally tear-shaped cross sections. Thus configured, the outriggers will have only small upwardor downward-pulling forces.
  • the depth to which the outriggers are maintained can be controlled with the assistance of markers provided near their ends. These markers or gauges can also be marked to indicate the static equilibrium of the nonmoving ship. Static equilibrium can be adjusted by effecting rearrangemeants in the ships ballast, for example, by pumping water from one ballast chamber to another.
  • the outriggers pivotally connected to the ship around a vertical shaft can be moved alternatively between an operational position in which they are disposed transversely to the direction in which the ship is moving and a nonoperational position alongside the ship in a position generally aligned with the longitudinal axis of the ship.
  • the outriggers can be brought to their nonoperational positions and back to an operational position when the echo sounders are to be employed.
  • FIGURE 1 is a diagrammatic transverse sectional view of a ship having apparatus according to the invention.
  • FIGURE 2 is a diagrammatic bottom view of a portion of the ship showing the apparatus according to the invention.
  • the ship 1 is provided with one outrigger 4 on each of its sides, the portside 2 and the starboard side 3.
  • Each of the outriggers 4 is pivotally connected to ship 1 so as to pivot about a vertical axis 5.
  • each of the outriggers 4 may be moved, pivotally, either to an operational position, as shown on side 3 of ship 1, which position lies transversely to the direction in which ship 1 is traveling, which direction is indicated by the arrow 6, or, in the alternative, to a non-operational position, as shown on side 2 of ship 1, in which it is disposed alongside the ship 1.
  • a plurality of echo sounders 7 are disposed on the outriggers 4 and along the bottom of the ship 1.
  • the echo sounders 7 are spaced at equal distances from each other and are arranged in such a manner that they form a straight line when the outriggers 4 are in their operational positions.
  • the depth of the floor 8 of a body of water is registered at the corresponding point on an indicator associated with the echo sounder 7.
  • a moving ship 1 can thus chart the contour and map the floor 8 of a particular body of water.
  • the outriggers 4 comprise substantially straight beams each having a tear-shaped cross section 9 as best seen on the port side 2 of FIGURE 1.
  • the beams are hollow and are so constructed that they are subjected to a relatively low static downward or upward pull.
  • the two outriggers 4 con be subjected to very little downward or upward pull when the ship 1 drives the outrigger 4 through the water or when water flows past the outrigger 4.
  • the slope of the cross section 9 is selected so that the dynamic forces will be nearly the same for the two outriggers on both sides of the ship. According to the tearshaped cross section the dynamic forces which occur during operation of such outriggers do not have the significance which has thus far generally been attributed to them. It would also be possible to select the slope of the angle of the cross section 9 so that small dynamic upwardpulling forces would result at each outrigger 4.
  • Each outrigger 4 is rigidly connected to a connecting means 18 and is pivotally mounted with respect to a pivot means 5.
  • the pivot means is rotatably, but not displaceably, mounted in outboard bearings 10 and is provided with an arm 11 to which is connected a piston rod 12.
  • the piston rod 12 is operated by, for example, a pneumatic linear piston drive apparatus 19, provided for each outrigger 4.
  • Each piston drive apparatus 19 has a pressure cylinder 13 which is mounted on the ship 1 to pivot around a shaft 14.
  • Each piston drive apparatus 19 can move its corresponding outrigger 4 from the operational position to the nonoperational position and vice versa.
  • An end marker 15 in the form of a vertical element with respect to the relatively horizontal outriggers 4 is located near the end of each outrigger 4. This end marker 15 indicates the position of the outer end of each outrigger 4. Moreover, the end marker 15 is provided with a gauge element 16. When each outrigger 4 is properly positioned horizontally, for operating the echo sounders 7, the gauge element 16 of each outrigger 4 is barely beneath the surface of the water 17. The static and the dynamic equilibrium of the outriggers 4 can thus be monitored and controlled before and during a surveying trip.
  • support apparatus for said sounders comprising, in combination:
  • each of said outriggers in its operational position, being oriented horizontally and being located beneath the surface of the water and extending transverse to the direction in which such ship is intended to move;
  • each of said outriggers has a generally tear-shaped cross sectional means for substantially equalizing the vertical upward and downward pulling forces acting on the outriggers during their passage through the water.
  • each of said outriggers has an end-marking means, said end-marking means further including means for indicating the depth beneath the surface of the water at which said outriggers are located.
  • Apparatus for conducting undersea explorations from a surface ship by the use of echo sounders comprising, in combination:

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
US707372A 1967-02-08 1968-02-08 Support for echo sounders Expired - Lifetime US3473500A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEB0091086 1967-02-08

Publications (1)

Publication Number Publication Date
US3473500A true US3473500A (en) 1969-10-21

Family

ID=6985642

Family Applications (1)

Application Number Title Priority Date Filing Date
US707372A Expired - Lifetime US3473500A (en) 1967-02-08 1968-02-08 Support for echo sounders

Country Status (4)

Country Link
US (1) US3473500A (fr)
DE (1) DE1506161C3 (fr)
FR (1) FR1553437A (fr)
NL (1) NL6801598A (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103661839A (zh) * 2013-12-20 2014-03-26 陈洪灿 自启动式船只防侧翻机构
CN103661806A (zh) * 2013-11-29 2014-03-26 大连船舶重工集团有限公司 一种船台下水船舶底部结构局部强度的确定方法

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2032104B (en) * 1978-10-23 1983-02-02 Shell Int Research Marine pipeline or cable location

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2022038A (en) * 1931-11-27 1935-11-26 Electroacustic Gmbh Stream-lined sword carrier for subaqueous sound apparatus
US2346391A (en) * 1943-01-14 1944-04-11 Patent Scaffolding Co Inc Structural member
US3036540A (en) * 1959-01-29 1962-05-29 Licentia Gmbh Displaceable fin for vehicles

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2022038A (en) * 1931-11-27 1935-11-26 Electroacustic Gmbh Stream-lined sword carrier for subaqueous sound apparatus
US2346391A (en) * 1943-01-14 1944-04-11 Patent Scaffolding Co Inc Structural member
US3036540A (en) * 1959-01-29 1962-05-29 Licentia Gmbh Displaceable fin for vehicles

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103661806A (zh) * 2013-11-29 2014-03-26 大连船舶重工集团有限公司 一种船台下水船舶底部结构局部强度的确定方法
CN103661806B (zh) * 2013-11-29 2016-03-09 大连船舶重工集团有限公司 一种船台下水船舶底部结构局部强度的确定方法
CN103661839A (zh) * 2013-12-20 2014-03-26 陈洪灿 自启动式船只防侧翻机构
CN103661839B (zh) * 2013-12-20 2016-08-17 陈洪灿 自启动式船只防侧翻机构

Also Published As

Publication number Publication date
DE1506161A1 (de) 1969-07-17
DE1506161C3 (de) 1974-10-03
DE1506161B2 (de) 1971-05-19
FR1553437A (fr) 1969-01-10
NL6801598A (fr) 1968-08-09

Similar Documents

Publication Publication Date Title
US2987027A (en) Propeller thrust stabilizer control
US2138600A (en) Outboard motor bracket
NO174616B (no) Overflate-referert paravane
CA2718873C (fr) Dispositif pour determiner la force agissant sur un gouvernail
DK178218B1 (en) A method of operating a boat
WO1981003475A1 (fr) Vehicule sous-marin remorque a commandes laterale et verticale
ES8607151A1 (es) Perfeccionamientos en los remolcadores para prestar ayuda a buques mayores
US3473500A (en) Support for echo sounders
US2773467A (en) Hydrofoil craft
US3915108A (en) Apparatus for controlling heave pitch and roll of a floating vessel
KR101900898B1 (ko) 고속선 예인시험 방법
EP0244368A1 (fr) Réservoirs ouverts longitudinaux pour la stabilisation de bateaux
US3370560A (en) Sailing vessels
EP0353829A1 (fr) Méthode pour transporter, installer ou enlever un élément off-shore et bateau semisubmersible pour réaliser cette méthode
US3407770A (en) Hydrofoil
CN108861964A (zh) 一种用于船舶井式安装多波束测量装置的升降系统
NO752850L (fr)
JP3244819B2 (ja) 水中曳航計測装置
US3785326A (en) Water propulsion systems using submerged propulsion cable
WO2016190746A1 (fr) Flotteur avec système d'abaissement pour des aubes fonctionnant en profondeur
US5884575A (en) Nautical balance system
US5170379A (en) Process and system for measuring when dragged underwater beneath a helicopter
JPS5926913B2 (ja) 海洋調査船の安定保持制御方法および安定保持制御用位置検知装置
CA1279531C (fr) Dispositif de ponton semi-submersible
JPH02504621A (ja) 海中目標探知用自走式潜水艇