JPS6418399A - Piezoelectric hydrophone - Google Patents

Piezoelectric hydrophone

Info

Publication number
JPS6418399A
JPS6418399A JP17511187A JP17511187A JPS6418399A JP S6418399 A JPS6418399 A JP S6418399A JP 17511187 A JP17511187 A JP 17511187A JP 17511187 A JP17511187 A JP 17511187A JP S6418399 A JPS6418399 A JP S6418399A
Authority
JP
Japan
Prior art keywords
piezoelectric
ship body
organic resin
cancel
axial direction
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.)
Granted
Application number
JP17511187A
Other languages
Japanese (ja)
Other versions
JPH0519360B2 (en
Inventor
Takeshi Inoue
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.)
NEC Corp
Original Assignee
NEC Corp
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 NEC Corp filed Critical NEC Corp
Priority to JP17511187A priority Critical patent/JPS6418399A/en
Publication of JPS6418399A publication Critical patent/JPS6418399A/en
Publication of JPH0519360B2 publication Critical patent/JPH0519360B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Transducers For Ultrasonic Waves (AREA)

Abstract

PURPOSE:To eliminate noises in every directions which are generated by a ship body and to directly enable a piezoelectric hydrophone to be mounted on the ship body by installing composite piezoelectric elements consisting of piezoelectric ceramic rods and organic resin symmetrically across a flat plate. CONSTITUTION:The conjugated piezoelectric plates (element) 11 and 11' consisting of the piezoelectric rods and organic resin are installed symmetrically across the flat plate 12 made of organic resin. Then if acceleration is generated in a Z-axial direction, the direction of polarization is selected so as to cancel charges in the piezoelectric plates completely. Then if acceleration operates in an X-axial direction, the part is compressed, and a join D is drawn to generate charges, which become opposite in polarizing direction and equal in size and intensity and are small in amount, so that the changes cancel each other completely. Further, even if acceleration operates in a (y)-axial direction, charges cancel each other between E1 and F1, and E2 and F2. Consequently, noises generated by the ship body in every direction can be erased and the hydrophone can be mounted directly on the ship body.
JP17511187A 1987-07-13 1987-07-13 Piezoelectric hydrophone Granted JPS6418399A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP17511187A JPS6418399A (en) 1987-07-13 1987-07-13 Piezoelectric hydrophone

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP17511187A JPS6418399A (en) 1987-07-13 1987-07-13 Piezoelectric hydrophone

Publications (2)

Publication Number Publication Date
JPS6418399A true JPS6418399A (en) 1989-01-23
JPH0519360B2 JPH0519360B2 (en) 1993-03-16

Family

ID=15990460

Family Applications (1)

Application Number Title Priority Date Filing Date
JP17511187A Granted JPS6418399A (en) 1987-07-13 1987-07-13 Piezoelectric hydrophone

Country Status (1)

Country Link
JP (1) JPS6418399A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07303296A (en) * 1994-05-06 1995-11-14 Nec Corp Underwater acoustic sensor and underwater sound detection system provided with it
JP2016507273A (en) * 2012-12-21 2016-03-10 ヴォルカノ コーポレイションＶｏｌｃａｎｏ Ｃｏｒｐｏｒａｔｉｏｎ Focused rotation IVUS transducer using single crystal composite material

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07303296A (en) * 1994-05-06 1995-11-14 Nec Corp Underwater acoustic sensor and underwater sound detection system provided with it
JP2016507273A (en) * 2012-12-21 2016-03-10 ヴォルカノ コーポレイションＶｏｌｃａｎｏ Ｃｏｒｐｏｒａｔｉｏｎ Focused rotation IVUS transducer using single crystal composite material
US11141134B2 (en) 2012-12-21 2021-10-12 Volcano Corporation Focused rotational IVUS transducer using single crystal composite material
US11998389B2 (en) 2012-12-21 2024-06-04 Philips Image Guided Therapy Corporation Focused rotational IVUS transducer using single crystal composite material

Also Published As

Publication number Publication date
JPH0519360B2 (en) 1993-03-16

Similar Documents

Publication Publication Date Title
CA2064213A1 (en) Micro-machined accelerometer with tilt compensation
GB1035080A (en) Piezoelectric tuned coupling element and method of making same
JPS53146047A (en) Muffler for internal combustion engine
JPS5525278A (en) 3-terminal type piezoelectric filter
ES281475U (en) NON-WOVEN FABRIC, LARGE VOLUME, LOW DENSITY AND GOOD RESISTANCE
JPS564087A (en) Sound emitting body for electromagnetic watch
JPS6418399A (en) Piezoelectric hydrophone
JPS5596713A (en) Outline vibration mode piezo-vibrator
JPS5474057A (en) Fiber reinforced resin leaf spring
NO163922C (en) DEVICE FOR GENERATING ACOUSTIC IMPULS BY IMPLOSION IN THE INTERNAL OF A BROWN.
JPS5683983A (en) Electricity-machinery conversion element
JPS5752184A (en) High sensitivity ceramic piezoelectric element
JPS5790434A (en) Leaf spring for vehicle
JPS5582245A (en) Atomizing vibrator
JPS5590116A (en) Piezoelectric device
JPS5625209A (en) Structure of vibration system of pickup cartridge
JPS5379398A (en) Square plate form piezoelectric vibrator
JPS537093A (en) Composite panel
MURZAKHANOV et al. Behavior of delaminations in the vicinity of notches in composite plates and shells(Povedenie otsloenii vblizi nadrezov v plastinakh i obolochkakh iz kompozitnykh materialov)
JPS5372492A (en) Piezo-electric vibrator
JPS5694790A (en) Magnetoelectric conversion element
Ray Distributed piezoelectrically actuation of composite structure by the finite element method
JPS52132805A (en) Structural material for acoustic instrument
GB808387A (en) Improvements in or relating to magnetostrictive transducer elements
JPS52128035A (en) Production of ceramic filter

Legal Events

Date Code Title Description
EXPY Cancellation because of completion of term
FPAY Renewal fee payment (prs date is renewal date of database)

Year of fee payment: 15

Free format text: PAYMENT UNTIL: 20080316