CN206671577U - Hydraulic engineering full-wave train disturbs bent ripple emission sensor - Google Patents
Hydraulic engineering full-wave train disturbs bent ripple emission sensor Download PDFInfo
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- CN206671577U CN206671577U CN201720487895.5U CN201720487895U CN206671577U CN 206671577 U CN206671577 U CN 206671577U CN 201720487895 U CN201720487895 U CN 201720487895U CN 206671577 U CN206671577 U CN 206671577U
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- steel skeleton
- hollow cylinder
- piezoelectric ceramics
- cylinder steel
- radial polarised
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Abstract
The utility model discloses a kind of hydraulic engineering full-wave train to disturb bent ripple emission sensor, including hollow cylinder steel skeleton, the phonation unit being arranged on the hollow cylinder steel skeleton, the both ends of hollow cylinder steel skeleton are respectively arranged with threaded connection section, and the hollow cylinder steel skeleton outer peripheral face positioned at the phonation unit both sides offers rubber seal installation annular groove and fastening tool bayonet slot respectively；The phonation unit is made up of the first radial polarised piezoelectric ceramics and the second radial polarised piezoelectric ceramics reverse parallel connection, the inside and outside anchor ring of the first, second radial polarised piezoelectric ceramics is coated with sound transmitting rubber layer, and first, second radial polarised piezoelectric ceramics is axially spaced to be fixedly set in the annular groove of hollow cylinder steel skeleton outer peripheral face.The utility model advantage is that the spread speed for disturbing Qu Bo levels off to shear wave, its direction of propagation and well logging diameter parallel, therefore shear wave can be substituted in data processing so that shear wave extraction is easier.
Description
Technical field
Emission sensor is the utility model is related to, bent ripple transmitting sensing is disturbed more particularly, to a kind of hydraulic engineering full-wave train
Device.
Background technology
Full wave train acustic logging technology largely is used in hydraulic engineering survey, gathers the longitudinal and transverse velocity of wave of subterranean body
Deng geological information, for Hydraulic Engineering Design.The critical piece of its detection equipment is full wave train acustic logging inserting tube, and inserting tube is main
It is made up of acoustic emission device, receiving device, electronics bay section, sound wave isolating device etc., wherein acoustic emission device is inserting tube group
Into one of important and essential device, its function is continuously to launch high-power sound wave in certain setting frequency range with fixed frequency
Pulse signal, all kinds of fluctuations are excited in rock mass in hole.The acoustic emission device used at present is generally single piezoelectric ceramics, power
It is smaller, low speed segment underpower be present applied to hydraulic engineering superficial layer borehole test, cause reception sensor to be difficult to receive
Useful signal.
The content of the invention
The utility model purpose is that providing a kind of hydraulic engineering full-wave train disturbs bent ripple emission sensor.
To achieve the above object, the utility model takes following technical proposals：
Hydraulic engineering full-wave train described in the utility model disturbs bent ripple emission sensor, including hollow cylinder steel skeleton, if
The phonation unit on the hollow cylinder steel skeleton is put, the both ends of hollow cylinder steel skeleton are respectively arranged with threaded connection
Section, the hollow cylinder steel skeleton outer peripheral face positioned at the phonation unit both sides offer rubber seal installation annular groove and tight respectively
Gu instrument bayonet slot；The phonation unit is by the first radial polarised piezoelectric ceramics and the second radial polarised piezoelectric ceramics reverse parallel connection
Form, the inside and outside anchor ring of the first, second radial polarised piezoelectric ceramics is coated with sound transmitting rubber layer, and first, second radially
Polarized piezoelectric ceramics are axially spaced to be fixedly set in the annular groove of hollow cylinder steel skeleton outer peripheral face.
The external diameter for being coated with first, second radial polarised piezoelectric ceramics of the sound transmitting rubber layer is equal to the hollow cylinder
The external diameter of steel skeleton.
The utility model advantage is that launches disturbs Qu Bo under the coupling of water, well logging wall is produced disturbance and is formed slightly
Song is disturbed, Qu Bo is disturbed in this shearing as caused by well disturbs Qu Yundong has Dispersion, in appropriate low-frequency range（10kHz~
20kHz）The spread speed for disturbing Qu Bo levels off to shear wave, its direction of propagation and well logging diameter parallel, therefore can in data processing
To substitute shear wave so that shear wave extraction is easier；That under the coupling of water also well logging wall can produce is vertical by the Qu Bo that disturbs of transmitting simultaneously
Ripple and Stoneley wave.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the circuit theory diagrams of first, second radial polarised piezoelectric ceramics reverse parallel connection described in the utility model.
Embodiment
Embodiments of the invention are elaborated below in conjunction with the accompanying drawings, the present embodiment using technical solution of the present invention before
Put and implemented, give detailed embodiment and specific operating process, but protection scope of the present invention is not limited to down
State embodiment.
As shown in Figure 1, 2, hydraulic engineering full-wave train described in the utility model disturbs bent ripple emission sensor, including open circles
Post steel skeleton 1, the phonation unit being arranged on hollow cylinder steel skeleton 1, the both ends of hollow cylinder steel skeleton 1 are respectively arranged with
Threaded connection section 2.1,2.2, the outer peripheral face of hollow cylinder steel skeleton 1 positioned at phonation unit both sides offer rubber seal respectively
Annular groove 3.1,3.2 and fastening tool bayonet slot 4.1,4.2 are installed；Phonation unit is by the first radial polarised piezoelectric ceramics 5 and second
The reverse parallel connection of radial polarised piezoelectric ceramics 6 is formed, and the inside and outside anchor ring of first, second radial polarised piezoelectric ceramics 5,6 is coated with
Sound transmitting rubber layer 7, first, second radial polarised piezoelectric ceramics 5,6 is axially spaced to be fixedly set in outside hollow cylinder steel skeleton 1
In the annular groove of side face, the control lead 8 of first, second radial polarised piezoelectric ceramics 5,6 of reverse parallel connection is from hollow cylinder reinforcing bar
Drawn in the through hole 9 of frame 1；The external diameter of first, second radial polarised piezoelectric ceramics 5,6 of sound transmitting rubber layer 7 is coated equal to hollow
The external diameter of cylinder steel skeleton 1.
Utility model works principle is summarized as follows：
First, second radial polarised piezoelectric ceramics 5,6 reverse parallel connections of the phonation unit by two resonant frequencies unanimously, therefore
When applying voltage to phonation unit, first（Or second）Radial polarised piezoelectric ceramics 5 is radially to expand, and wall thickness increases
Add, and second（Or first）Radial polarised piezoelectric ceramics 6 is to reduce radially inward, and wall thickness is reduced, therefore by water to well logging
Wall forms disturbance generation and disturbs Qu Bo.
Claims (2)
1. a kind of hydraulic engineering full-wave train disturbs bent ripple emission sensor, including hollow cylinder steel skeleton, the open circles are arranged on
Phonation unit on post steel skeleton, the both ends of hollow cylinder steel skeleton are respectively arranged with threaded connection section, positioned at the sounding
The hollow cylinder steel skeleton outer peripheral face of unit both sides offers rubber seal installation annular groove and fastening tool bayonet slot respectively；Its
It is characterised by：The phonation unit is by the first radial polarised piezoelectric ceramics and the second radial polarised piezoelectric ceramics reverse parallel connection structure
Into the inside and outside anchor ring of the first, second radial polarised piezoelectric ceramics is coated with sound transmitting rubber layer, first, second radial direction pole
Change that piezoelectric ceramics is axially spaced is fixedly set in the annular groove of hollow cylinder steel skeleton outer peripheral face.
2. hydraulic engineering full-wave train according to claim 1 disturbs bent ripple emission sensor, it is characterised in that：It is coated with described
The external diameter of first, second radial polarised piezoelectric ceramics of sound transmitting rubber layer is equal to the external diameter of the hollow cylinder steel skeleton.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720487895.5U CN206671577U (en) | 2017-05-04 | 2017-05-04 | Hydraulic engineering full-wave train disturbs bent ripple emission sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720487895.5U CN206671577U (en) | 2017-05-04 | 2017-05-04 | Hydraulic engineering full-wave train disturbs bent ripple emission sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206671577U true CN206671577U (en) | 2017-11-24 |
Family
ID=60371644
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720487895.5U Active CN206671577U (en) | 2017-05-04 | 2017-05-04 | Hydraulic engineering full-wave train disturbs bent ripple emission sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206671577U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114063145A (en) * | 2021-11-15 | 2022-02-18 | 上海海事大学 | Periodic linear array device for underwater acoustic emission and sensor |
-
2017
- 2017-05-04 CN CN201720487895.5U patent/CN206671577U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114063145A (en) * | 2021-11-15 | 2022-02-18 | 上海海事大学 | Periodic linear array device for underwater acoustic emission and sensor |
| CN114063145B (en) * | 2021-11-15 | 2023-11-24 | 上海海事大学 | Periodic linear array device of underwater sound emission and sensor |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 450003 Zhengzhou Jinshui Road, Henan, No. 109 Patentee after: Yellow River Survey Planning and Design Research Institute Co., Ltd. Address before: 450003 Zhengzhou Jinshui Road, Henan, No. 109 Patentee before: Yellow River Engineering Consulting Co., Ltd. |
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| CP01 | Change in the name or title of a patent holder |