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US3284760A - Hydrophone members - Google Patents

Hydrophone members Download PDF

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Publication number
US3284760A
US3284760A US341929A US34192964A US3284760A US 3284760 A US3284760 A US 3284760A US 341929 A US341929 A US 341929A US 34192964 A US34192964 A US 34192964A US 3284760 A US3284760 A US 3284760A
Authority
US
United States
Prior art keywords
cylinder
spool
hydrophone
members
flanges
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
US341929A
Other languages
English (en)
Inventor
Maes Guy
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.)
Electronique Appliquee SA
Original Assignee
Electronique Appliquee SA
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 Electronique Appliquee SA filed Critical Electronique Appliquee SA
Application granted granted Critical
Publication of US3284760A publication Critical patent/US3284760A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B06—GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL
    • B06B—METHODS OR APPARATUS FOR GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS OF INFRASONIC, SONIC, OR ULTRASONIC FREQUENCY, e.g. FOR PERFORMING MECHANICAL WORK IN GENERAL
    • B06B1/00—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency
    • B06B1/02—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy
    • B06B1/06—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy operating with piezoelectric effect or with electrostriction
    • B06B1/0644—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy operating with piezoelectric effect or with electrostriction using a single piezoelectric element
    • B06B1/0655—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy operating with piezoelectric effect or with electrostriction using a single piezoelectric element of cylindrical shape
    • 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
    • G01S1/00—Beacons or beacon systems transmitting signals having a characteristic or characteristics capable of being detected by non-directional receivers and defining directions, positions, or position lines fixed relatively to the beacon transmitters; Receivers co-operating therewith
    • G01S1/72—Beacons or beacon systems transmitting signals having a characteristic or characteristics capable of being detected by non-directional receivers and defining directions, positions, or position lines fixed relatively to the beacon transmitters; Receivers co-operating therewith using ultrasonic, sonic or infrasonic waves

Definitions

  • the present invention concerns improvements in or relating to hydrophone members specially adapated to be used in submarine listening microphone arrangements of the so-called anti-echo kind, i.e. hydrophone arrangements comprising a plurality of members so dimensioned and relatively supported that they do not present any substantial response to the echoes on the bottom and surface of the sea of the noises they are intended to pick off.
  • FIGURE 1 is a diagrammatical view showing an arrangement of six hydrophones
  • FIGURE 2 is a sectional view of one hydrophone in accordance with the present invention.
  • FIGURE 3 is a sectional view of a modified form of the hydrophone shown in FIGURE 2.
  • FIG. 1 shows a diagrammatic view of one of such devices comprising for instance six hydrophone members distributed in three pairs of identical members in each pair, referred as 2, 3 and 4 along an hydrophone cable 1 from which they depend and from which they are supported.
  • the distribution is such that it substantially follows the so-called Tchebyschefl law so that the radiation diagram of the arrangement does not present any substantial secondary lobes but only a main lobe symmetrical with respect to the mid-plane orthogonal to the arrangement.
  • Hydrophone members 2 are dimensioned for the higher weight and hydrophone members 4, for the lower weight in the arrangement, the weight of hydrophone members 3 being intermediate between those of members 2 and 4. Consequently the directivity of pick-off radiation diagram will be maximum in the said plane.
  • a further object of the invention is to so provide such structure that the response is substantially constant over the whole height of the piezo-electric cylinder.
  • a furthre object of the invention is to so provide such a structure that its mechanical and acoustical arrangement is particularly simple and efficient for the sought purposes.
  • a piezo-electric hydrophone member for anti-echo submarine listening arrangements is mainly characterized by the combination of a piezo-electric hollow cylinder the height of which is adjusted for the response efliciency coeflicient thereof, a pair of plastic material plates applied on the opposite edges of said cylinder, a stretcher within said cylinder and not in contact with it for supporting said plates, at least one annular sheath tightly applied over the external surface of the said cylinder and two axial sleeves extending from said plates in an outward direction and watertightly separating the input and output cable portions WhlCh are connected to the piezo-electric cylinder terminals within the so provided watertight inner volume of said cylinder.
  • FIGS. 2 and 3 in cross-section views.
  • the piezo-electric cylinder 10 is of a height provided for defining the weight of the member, that 1s to say, as inferred above, the amount of the response efiiciency coefficient of the member to any pick-oh noise.
  • the inner stretcher 16 is in two parts or at least is provided with a hollowed intermediary portion as shown at 20 for splicing the cable 1 and making therefrom electrical connections such as 17 to the electrode terminals 21 and 22 on the outer and inner faces of the cylinder 10 through leads 18 and 19.
  • the electrode terminals may be made by metallizing of said faces and the leads 18 and 19 may be soldered to said terminals at one end thereof and at wires of the cable '1 at the other end thereof.
  • the stretcher 16 has preferably the shape of a spool with two end flanges each of a smaller diameter than the inner diameter of the cylinder 10. When the spool is provided in two parts, it may be used for aflixing the cable passing through the member so as to avoid undue traction stretch thereon.
  • circular ribs, 14 and 24 are provided in the plates 13 and 23 for better defining in the arrangement the position of the piezo-electric cylinder 10 though said ribs do not come into contact with the upper and lower ends of said cylinder.
  • a flexible cylindrical sheath 12 provided with annular flanges 27 encase the cylinder 10, being applied over its external face and the flanges 27 apply over outer portions of the plates 13 and 23, thus maintaining the sheath in its position over the cylinder 10 and ensuring watertightness of the cylinder inner volume at such places.
  • Said sheath may be made of rubber or similar plastic material. Being tightly applied to the outer wall of the piezo-electric cylinder 10, all pressure elastic waves are translated without appreciable weakening to said cylinder.
  • the sheathing of the outer wall of the cylinder 10 is made from extensions of the end plates between which the cylinder is maintained.
  • the lower plate 33 also provided with its cable sleeve 35, extends in a tubular wall portion 32 ending in an annular flange 34.
  • the upper plate 43 provided with its cable sleeve 45, extends in another tubular wall 42 ending in an annular flange 44.
  • the relative dimensioning is such that on the first part, the tubular wall 42 tightly applies over the outer lateral wall of 10 and the flange 44 applies under the end annular face of said cylinder 10.
  • the other sheath 32 of end plate 33 is then passed over the sheath 42 so that said sheaths are in tight application one over the other and over the lateral wall of the cylinder 10.
  • the laterally incident pressure waves will not be appreciably attenuated as in the arrangement of FIG. 2.
  • the ribs such as 14 and 24 may be dispensed with, due to the positioning of the cylinder automatically obtained from flange 44 and end plate 43.
  • said spool further including. a. central.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Mechanical Engineering (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Transducers For Ultrasonic Waves (AREA)
  • Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
US341929A 1963-02-05 1964-02-03 Hydrophone members Expired - Lifetime US3284760A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR923762A FR1355675A (fr) 1963-02-05 1963-02-05 élément d'hydrophone perfectionné

Publications (1)

Publication Number Publication Date
US3284760A true US3284760A (en) 1966-11-08

Family

ID=8796321

Family Applications (1)

Application Number Title Priority Date Filing Date
US341929A Expired - Lifetime US3284760A (en) 1963-02-05 1964-02-03 Hydrophone members

Country Status (4)

Country Link
US (1) US3284760A (de)
DE (1) DE1283127B (de)
FR (1) FR1355675A (de)
GB (1) GB993830A (de)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3435409A (en) * 1967-10-26 1969-03-25 Us Navy Line array hydrophone and system
US3710151A (en) * 1971-03-29 1973-01-09 Dynamics Corp Massa Div Electroacoustic transducer for use at high temperatures and pressures
US4012649A (en) * 1975-10-09 1977-03-15 Teledyne Industries, Inc. Piezoelectric stress/strain intrusion detectors
US4015233A (en) * 1973-03-27 1977-03-29 Institut Francais Du Petrole, Des Carburants Et Lubrifiants Et Entreprise De Recherches Et D'activities Petrolieres Elf Pressure sensor of low sensitivity with respect to acceleration
US4241432A (en) * 1967-04-21 1980-12-23 The United States Of America As Represented By The Secretary Of The Navy Transducer-reflector system

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2193218C2 (ru) * 2000-12-04 2002-11-20 Зао "Техкомплект" Пьезомагнитный геофон

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2762032A (en) * 1954-11-26 1956-09-04 Shell Dev Seismic hydrophone
US2947969A (en) * 1954-09-08 1960-08-02 Harris Transducer Corp Elongated electroacoustic transducer with integral reinforced mounting flanges
US3068446A (en) * 1958-08-21 1962-12-11 Stanley L Ehrlich Tubular electrostrictive transducer with spaced electrodes and loading masses

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2618698A (en) * 1951-05-21 1952-11-18 Gen Electric Transducer and method of making the same
US2928068A (en) * 1952-03-25 1960-03-08 Gen Electric Compressional wave transducer and method of making the same
US2708742A (en) * 1952-04-22 1955-05-17 Harris Transducer Corp Hydrophone cable
US2864073A (en) * 1955-09-07 1958-12-09 Harris Transducer Corp Demountable cable hydrophone
FR1247068A (fr) * 1960-01-28 1960-11-25 Thomson Houston Comp Francaise Transducteur d'onde de pression

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2947969A (en) * 1954-09-08 1960-08-02 Harris Transducer Corp Elongated electroacoustic transducer with integral reinforced mounting flanges
US2762032A (en) * 1954-11-26 1956-09-04 Shell Dev Seismic hydrophone
US3068446A (en) * 1958-08-21 1962-12-11 Stanley L Ehrlich Tubular electrostrictive transducer with spaced electrodes and loading masses

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4241432A (en) * 1967-04-21 1980-12-23 The United States Of America As Represented By The Secretary Of The Navy Transducer-reflector system
US3435409A (en) * 1967-10-26 1969-03-25 Us Navy Line array hydrophone and system
US3710151A (en) * 1971-03-29 1973-01-09 Dynamics Corp Massa Div Electroacoustic transducer for use at high temperatures and pressures
US4015233A (en) * 1973-03-27 1977-03-29 Institut Francais Du Petrole, Des Carburants Et Lubrifiants Et Entreprise De Recherches Et D'activities Petrolieres Elf Pressure sensor of low sensitivity with respect to acceleration
US4012649A (en) * 1975-10-09 1977-03-15 Teledyne Industries, Inc. Piezoelectric stress/strain intrusion detectors

Also Published As

Publication number Publication date
DE1283127B (de) 1968-11-14
FR1355675A (fr) 1964-03-20
GB993830A (en) 1965-06-02

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