CN201348661Y - Deep water type special hydrophone for geophysical prospecting - Google Patents
Deep water type special hydrophone for geophysical prospecting Download PDFInfo
- Publication number
- CN201348661Y CN201348661Y CNU200920095376XU CN200920095376U CN201348661Y CN 201348661 Y CN201348661 Y CN 201348661Y CN U200920095376X U CNU200920095376X U CN U200920095376XU CN 200920095376 U CN200920095376 U CN 200920095376U CN 201348661 Y CN201348661 Y CN 201348661Y
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- piezoelectric ceramic
- hydrophone
- water type
- deep water
- utility
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Abstract
The utility model relates to a deep water type special hydrophone for geophysical prospecting, which comprises a rubber housing, a transformer, a connecting wire, elastic electronic potting adhesive filling the whole cavity of the outer housing, and a ring-shaped metal supporting seat provided with rims at the two ends, wherein disc-shaped piezoelectric ceramic plates are arranged in the rims. The utility model is characterized in that a metal pressure-resistant body is added to the piezoelectric ceramic plates at the two ends of the ring-shaped metal supporting seat. The utility model has the benefits that the metal pressure-resistant body is added to the prior conventional hydrophone, which enables the hydrophone to conduct vibration signals and share the water pressure borne by the piezoelectric ceramic body, thereby finally improving the maximum operating water depth of the hydrophone. Due to the use of the utility model, the range of the geophysical prospecting can be expanded, and the precision of the geophysical prospecting can be improved.
Description
Technical field
The utility model belongs to the special-purpose nautical receiving set of geophysical survey, relates in particular to the special-purpose nautical receiving set of a kind of deep water type physical prospecting.
Background technology
At present, the special-purpose nautical receiving set of geophysical survey is " conventional depth of water type nautical receiving set " both at home and abroad, and maximum operating water depth is tens meters.If artificially increase the submerged depth of nautical receiving set again, then nautical receiving set will be worked even permanent damages.Its reason is: along with the increase of the depth of water, the suffered pressure of nautical receiving set rubbery outer cover increases, and by the conduction of elasticity embedding body, the compressing piezoelectric ceramic body makes its distortion.When deformation surpassed to a certain degree, piezoelectric ceramic body can't output signal even permanent damages.If increase the rigidity or the hardness of rubbery outer cover or elasticity embedding body again, then can influence the reception of nautical receiving set to vibration signal.Therefore, the operating depth of nautical receiving set becomes the bottleneck that this field can't be gone beyond for many years.
The utility model content
The purpose of this utility model is to overcome the deficiency of above-mentioned technology, and provide a kind of deep water type physical prospecting special-purpose nautical receiving set, can widen the scope of geophysical survey, the precision of raising geophysical survey, portion has increased special-shaped metal compression body within it, shared the water depth pressure that piezoelectric ceramic body bore, the maximum operating water depth of nautical receiving set is improved.
The utility model for achieving the above object, by the following technical solutions: the special-purpose nautical receiving set of a kind of deep water type physical prospecting, comprise rubbery outer cover, transformer, connecting line, fill the elasticity electron pouring sealant of shell body inner chamber and the circular ring metal supporting seat that two ends are provided with the rim of the mouth, the rim of the mouth is built-in with the disc piezoelectric ceramic piece, it is characterized in that: set up the metal compression body on the described piezoelectric ceramic piece that places circular ring metal supporting seat two ends.
The some through holes of described metal compression body radial equipartition.
Described metal compression body does not contact with piezoelectric ceramic piece.
The ratio of the described metal compression body through hole hole total area and the metal total area is 1: 10---100: 10.
The utility model beneficial effect: on the basis of existing conventional nautical receiving set, increased the metal compression body, made it can conduct vibration signal and shared the water depth pressure that piezoelectric ceramic body bore again, the maximum operating water depth of nautical receiving set is improved.Can widen the scope of geophysical survey, the precision of raising geophysical survey.
Description of drawings
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is the structural representation of metal compression body among Fig. 1.
Embodiment
Describe embodiment of the present utility model in detail below in conjunction with accompanying drawing and preferred embodiment.
As shown in the figure, the special-purpose nautical receiving set of a kind of deep water type physical prospecting, comprise that rubbery outer cover 1, transformer 9, connecting line 2, the elasticity electron pouring sealant 3 of filling the shell body inner chamber and two ends are provided with the circular ring metal supporting seat 5 in rim of the mouth 4, the rim of the mouth is built-in with disc piezoelectric ceramic piece 6, sets up metal compression body 7 on the described piezoelectric ceramic piece that places circular ring metal supporting seat two ends.The some through holes 8 of described metal compression body radial equipartition.Described metal compression body does not contact with piezoelectric ceramic piece.The ratio of the described metal compression body through hole hole total area and the metal total area is 1: 10---100: 10.The elasticity electron pouring sealant is the filling glue that the right-hand Science and Technology Ltd. in Wuhan produces.
Increase anti-pressure ability again in order neither to influence the reception vibration signal, set up the metal compression body in the outside of piezoelectric ceramic body.In order to guarantee that the metal compression body does not directly contact with piezoelectric ceramic body, the rim of the mouth degree of depth at metallic support seat two ends can guarantee that greater than the thickness of piezoelectric ceramic piece the metal compression body only contacts with the metallic support wall of piezoelectric ceramic body periphery.The through hole that elasticity embedding body sees through in the metal compression body contacts with rubbery outer cover with piezoelectric ceramic body.During operate as normal, the water depth pressure part that rubbery outer cover bears reaches piezoelectric ceramic body by elasticity embedding body, and another part is then shared by the metal compression body and reached the metallic support wall.When the metallic area of metal compression body and the through hole total area are 1: 1, the metal compression body equates with the water pressure that elasticity embedding body is born, it respectively is 50% of general pressure, that is to say that the metal compression body born the water pressure of half, in other words, bear under the identical situation of maximum pressure at piezoelectric ceramic body, the maximum pressure that nautical receiving set can bear is original 2 times approximately, and both maximum operating water depth had improved 1 times than originally.Vibration signal then reaches piezoelectric ceramic body by the elasticity embedding body in the metal compression body through hole, makes its operate as normal.Change the ratio of via area and metallic area, then can change the maximum operating water depth of nautical receiving set.
The above only is preferred embodiment of the present utility model, is not structure of the present utility model is done any pro forma restriction.Every foundation technical spirit of the present utility model all still belongs in the scope of the technical solution of the utility model any simple modification, equivalent variations and modification that above embodiment did.
Claims (4)
1, the special-purpose nautical receiving set of a kind of deep water type physical prospecting, comprise rubbery outer cover, transformer, connecting line, fill the elasticity electron pouring sealant of shell body inner chamber and the circular ring metal supporting seat that two ends are provided with the rim of the mouth, the rim of the mouth is built-in with the disc piezoelectric ceramic piece, it is characterized in that: set up the metal compression body on the described piezoelectric ceramic piece that places circular ring metal supporting seat two ends.
2, the special-purpose nautical receiving set of deep water type physical prospecting according to claim 1 is characterized in that: the some through holes of described metal compression body radial equipartition.
3, the special-purpose nautical receiving set of deep water type physical prospecting according to claim 1 and 2, it is characterized in that: described metal compression body does not contact with piezoelectric ceramic piece.
4, the special-purpose nautical receiving set of deep water type physical prospecting according to claim 3, it is characterized in that: the ratio of the described metal compression body through hole hole total area and the metal total area is 1: 10--100: 10.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200920095376XU CN201348661Y (en) | 2009-01-20 | 2009-01-20 | Deep water type special hydrophone for geophysical prospecting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200920095376XU CN201348661Y (en) | 2009-01-20 | 2009-01-20 | Deep water type special hydrophone for geophysical prospecting |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201348661Y true CN201348661Y (en) | 2009-11-18 |
Family
ID=41368129
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU200920095376XU Expired - Fee Related CN201348661Y (en) | 2009-01-20 | 2009-01-20 | Deep water type special hydrophone for geophysical prospecting |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201348661Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101917655A (en) * | 2010-08-13 | 2010-12-15 | 浙江大学 | Resonant cavity microphone for detecting deep water sound waves |
| CN101949732A (en) * | 2010-08-13 | 2011-01-19 | 浙江大学 | Resonant cavity type hydrophone for deepwater soundwave detection |
| CN107345833A (en) * | 2017-06-12 | 2017-11-14 | 中国科学院声学研究所 | A kind of longitudinal vibration formula interference-type isolating technique pressure-bearing fibre optic hydrophone |
-
2009
- 2009-01-20 CN CNU200920095376XU patent/CN201348661Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101917655A (en) * | 2010-08-13 | 2010-12-15 | 浙江大学 | Resonant cavity microphone for detecting deep water sound waves |
| CN101949732A (en) * | 2010-08-13 | 2011-01-19 | 浙江大学 | Resonant cavity type hydrophone for deepwater soundwave detection |
| CN101949732B (en) * | 2010-08-13 | 2011-11-09 | 浙江大学 | Resonant cavity type hydrophone for deepwater soundwave detection |
| CN107345833A (en) * | 2017-06-12 | 2017-11-14 | 中国科学院声学研究所 | A kind of longitudinal vibration formula interference-type isolating technique pressure-bearing fibre optic hydrophone |
| CN107345833B (en) * | 2017-06-12 | 2019-07-09 | 中国科学院声学研究所 | A kind of longitudinal vibration formula interference-type vibration isolation pressure-bearing fibre optic hydrophone |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20091118 Termination date: 20120120 |