JPS6418399A - Piezoelectric hydrophone - Google Patents
Piezoelectric hydrophoneInfo
- 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
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.
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 (3)
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 |
US11998389B2 (en) | 2021-10-12 | 2024-06-04 | Philips Image Guided Therapy Corporation | Focused rotational IVUS transducer using single crystal composite material |
-
1987
- 1987-07-13 JP JP17511187A patent/JPS6418399A/en active Granted
Cited By (4)
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) | 2021-10-12 | 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 |
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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 |