CN2077849U - Piezoelectric membrane circular water earphone with tug cable array - Google Patents
Piezoelectric membrane circular water earphone with tug cable array Download PDFInfo
- Publication number
- CN2077849U CN2077849U CN 90214633 CN90214633U CN2077849U CN 2077849 U CN2077849 U CN 2077849U CN 90214633 CN90214633 CN 90214633 CN 90214633 U CN90214633 U CN 90214633U CN 2077849 U CN2077849 U CN 2077849U
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- piezoelectric membrane
- cover plate
- upper cover
- shell
- lower cover
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Abstract
The piezoelectric membrane circular water earphone with tug cable array of the utility model relates to a macromolecule piezoelectric membrane circular water earphone used for the tug cable array which comprises the tug cable array of the neritic petroleum geological exploration and the abysmal remote target exploration. The utility model mainly comprises a vibration transmission case, a piezoelectric membrane, copper foils, an upper cover plate and a lower cover plate. A piezoelectric membrane is adhered to the inside of the circular vibration transmission case. The upper cover plate and the lower cover plate are respectively arranged on the upper end and the lower end of the vibration transmission case. The copper foils adhered to the inside of the cover plates are respectively connected to the negative electrodes. A circular rubber ring is underlaid between the upper and lower cover plates and the vibration transmission case. Compared with the original water earphone, the various technical specifications of the utility model are greatly improved.
Description
The utility model is a kind of PVDF(Polymer piezoelectricity book film that towing line array promptly comprises shallow sea petroleum geoexploration towing line array and deep-sea target acquisition towing line array far away that is used for) the pipe hydrophone, belong to the underwater acoustic technology field.
The towing line array hydrophone is widely used at home and abroad to be the PZT(piezoceramic) hydrophone made, the technical index of this hydrophone is not high, from great, frangible, the acceleration responsive index is low, therefore aspect seafari, often can not measure desired data exactly, bring bigger difficulty for mensuration work.External pertinent data was also once reported PVDF pipe hydrophone, but because its structure Design problem makes its technical index still not high, and not anti-high hydrostatic pressure, owing to these reasons, therefore there is not any example report so far yet, there is not the application product of this aspect yet.
Goal of the invention of the present utility model mainly is from great at existing PZT piezoelectric ceramic hydrophone, the defective that the acceleration responsive index is low, sensitivity is not high provides a kind of high sensitivity, low acceleration responsive and the extremely light towing line array PVDF pipe hydrophone of deadweight.
The utility model by piezoelectricity book film (1), pass shake shell (2), lower cover (3), Copper Foil (4), positive electrode binding post (5), negative potential binding post (6), upper cover plate (7), annular rubber circle (8) is formed.Wherein passing the shell that shakes is tubular, adopts the material of low elastic modulus high mechanical properties to make, and has piezoelectric membrane within it on the wall.Biography is shaken bonding with the low elastic modulus adhesive between shell and the piezoelectric membrane.At the shake two ends up and down of shell of biography, be respectively equipped with a upper cover plate and lower cover, inboard at its cover plate is respectively with Copper Foil, in addition, on upper cover plate, also be provided with positive electrode binding post and negative potential binding post, wherein the negative potential binding post joins with the Copper Foil of lower cover and upper cover plate inboard and a side of piezoelectric membrane respectively, and the positive electrode binding post only is connected with the opposite side of piezoelectric membrane.Shake in biography and to be lined with the annular rubber circle between shell and upper cover plate and the lower cover.
Adopt towing line array piezoelectric membrane pipe hydrophone of the present utility model, its advantage is being:
1. from heavy and light: this hydrophone has only about 18 grammes per square metres, during use, makes things convenient for manyly than original widely used PZT piezoceramic towing line array hydrophone.
2. acceleration responsive index height reaches-80db.
3. voltage sensitivity index height, for-190db.
In addition, capacitance reaches 4000pf, receives the response flat region and be 10HZ～200HZ(± 1.5db).
Because above these good technical indexs have substantially exceeded PZT piezoceramic towing line array hydrophone, therefore, when reality is used, can obviously improve the signal to noise ratio of surveying the submarine geology structure, and can detect farther moving target.In addition, this hydrophone cost is low, stable performance, phase place and amplitude response high conformity.
Fig. 1 is a structural representation of the present utility model.
Embodiment of the present utility model is as follows:
The biography shell (2) that shakes is a tubular, adopts the material of low elastic modulus, high mechanical properties: be shaped as pure polycarbonate injection moulded, housing is thick to be 1 millimeter, and external diameter is 30 millimeters, and height is 46 millimeters.Piezoelectric membrane (1) adopts Polymer (PVDF) piezoelectric membrane, and film thickness is 50 microns.This piezoelectric film and biography are shaken between the shell, use the low elastic modulus glue bond.Draw positive and negative electrode lead-in wire and link to each other with positive and negative, electrode on the upper cover plate respectively from the PVDF film with conducting resinl, upper cover plate (7) and lower cover (3) are made with nylon material, after shaking cover plate Gai Zaichuan on the shell, side is posted one deck Copper Foil within it, and this Copper Foil is connected with negative pole respectively.Shake in upper cover plate, lower cover and biography and also to be lined with an annular rubber circle (8) between the shell respectively.According to the above, just can make towing line array piezoelectric membrane pipe hydrophone of the present utility model.
Claims (4)
1, a kind of towing line array hydrophone, form by housing and detecting means branch, it is characterized in that this hydrophone is cylindric: by piezoelectric membrane (1), the biography shell (2) that shakes, lower cover (3), Copper Foil (4), positive electrode binding post (5), negative potential binding post (6), upper cover plate (7), annular rubber circle (8) is formed, wherein passing the shell (2) that shakes is tubular, has piezoelectric membrane (1) within it on the wall, biography shake shell (2) on, following two, be respectively equipped with a upper cover plate (7) and lower cover (3), side is respectively with Copper Foil (4) within it, positive electrode binding post (5), negative potential binding post (6) is located on the upper cover plate (7).
2, towing array piezoelectric membrane pipe hydrophone according to claim 1 is characterized in that piezoelectric membrane (1) is the Polymer piezoelectric membrane, and it and biography are shaken and used the low elastic modulus glue bond between the shell (2).
3, towing line array piezoelectric membrane pipe hydrophone according to claim 1 and 2, it is characterized in that a Copper Foil that negative potential binding post (6) is inboard with being attached to upper cover plate (7) and lower cover (3) respectively and a side of piezoelectric membrane (2) are connected, positive electrode binding post (5) only joins with the opposite side of piezoelectric membrane (2).
4, towing line array piezoelectric membrane pipe hydrophone according to claim 1, it is characterized in that passing the pure polycarbonate injection moulded moulding of shell (2) employing of shaking, upper cover plate (7) and lower cover (3) adopt non-metallic material, pass between shake shell (2) and upper cover plate (7), the lower cover (3) and are lined with annular rubber circle (8) respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 90214633 CN2077849U (en) | 1990-10-17 | 1990-10-17 | Piezoelectric membrane circular water earphone with tug cable array |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 90214633 CN2077849U (en) | 1990-10-17 | 1990-10-17 | Piezoelectric membrane circular water earphone with tug cable array |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2077849U true CN2077849U (en) | 1991-05-29 |
Family
ID=4893995
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 90214633 Withdrawn CN2077849U (en) | 1990-10-17 | 1990-10-17 | Piezoelectric membrane circular water earphone with tug cable array |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2077849U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1892248B (en) * | 2005-07-01 | 2011-05-11 | 中国科学院声学研究所 | Small static-pressure-resisting hydrophone for drag-wire array |
| CN102901981A (en) * | 2012-10-22 | 2013-01-30 | 中国船舶重工集团公司第七一五研究所 | High hydrostatic pressure-resistant small piezoelectric hydrophone and manufacturing method thereof |
| CN117213610A (en) * | 2023-09-06 | 2023-12-12 | 哈尔滨工程大学 | Static pressure resistant optical fiber hydrophone sensitive membrane structure with stable sensitivity |
-
1990
- 1990-10-17 CN CN 90214633 patent/CN2077849U/en not_active Withdrawn
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1892248B (en) * | 2005-07-01 | 2011-05-11 | 中国科学院声学研究所 | Small static-pressure-resisting hydrophone for drag-wire array |
| CN102901981A (en) * | 2012-10-22 | 2013-01-30 | 中国船舶重工集团公司第七一五研究所 | High hydrostatic pressure-resistant small piezoelectric hydrophone and manufacturing method thereof |
| CN102901981B (en) * | 2012-10-22 | 2016-01-27 | 中国船舶重工集团公司第七一五研究所 | A kind of high hydrostatic pressure-resistant small piezoelectric hydrophone and preparation method thereof |
| CN117213610A (en) * | 2023-09-06 | 2023-12-12 | 哈尔滨工程大学 | Static pressure resistant optical fiber hydrophone sensitive membrane structure with stable sensitivity |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |