CN201075018Y - Sound wave receiving sensor - Google Patents
Sound wave receiving sensor Download PDFInfo
- Publication number
- CN201075018Y CN201075018Y CNU2007200131874U CN200720013187U CN201075018Y CN 201075018 Y CN201075018 Y CN 201075018Y CN U2007200131874 U CNU2007200131874 U CN U2007200131874U CN 200720013187 U CN200720013187 U CN 200720013187U CN 201075018 Y CN201075018 Y CN 201075018Y
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- CN
- China
- Prior art keywords
- piezoelectric ceramic
- rubber cover
- cover body
- mounting bracket
- receiving sensor
- 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.)
- Expired - Fee Related
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Abstract
The utility model relates to an acoustic receiving sensor, which is used on a petroleum gas oil well liquid level depth measurement device; the utility model aims at solving the shortcomings of big volume, low sensitivity and short service life of the cylindrical ceramic piezoelectric microphones which are used before; the acoustic receiving sensor arranges two piezoelectric ceramic plates on the inner surfaces of both ends of a receiving body, the two piezoelectric ceramic plates are connected in series, the two piezoelectric ceramic plates are respectively connected with guide wires, a rubber cover body is arranged at the periphery of the receiving body, the rubber cover body is arranged on a mounting support, a fixed ring is arranged on the rubber cover body and is fixed on the mounting support; the utility model has the advantages of small size, high sensitivity and improved service life.
Description
Technical field:
The invention relates to the improvement of sound receiving sensor structure, is to be used for oil natural gas measuring oil well liquid level depth device.
Background technology:
As relying on the acoustic reflection principle to measure the core parts of oil-well level instrument, the performance quality of acoustic receiving transducer plays crucial effects.What generally use at present is the cylinder type ceramic piezoelectric microphone, and its shortcoming is: volume is big, sensitivity is low, bear that pressure capability is weak, serviceable life is short.
Summary of the invention:
The purpose of the invention provides a kind of highly sensitive, bears the pressure capability height, improves the acoustic receiving transducer in serviceable life; The purpose of the invention is achieved through the following technical solutions: acoustic receiving transducer: be made of reception body, piezoelectric ceramic piece, lead, rubber cover body, mounting bracket, retainer plate; Two piezoelectric ceramic pieces are sticked on respectively on the two sides inside surface that receives body, two piezoelectric ceramic pieces are connected in series, two piezoelectric ceramic pieces are connected with lead respectively, in the periphery that receives body the rubber cover body is installed, the rubber cover body is installed on the mounting bracket, is installed in retainer plate on the rubber cover body and is fixed on the mounting bracket.
Externally threaded connector has been made in the bottom of mounting bracket.
Receiving the body both ends of the surface is thin-wall construction.
The advantage of the invention: make thin-wall construction owing to receive the body both ends of the surface, when high pressure draught impacts when receiving body two ends thin-wall construction; the thin-walled end face drives piezoelectric ceramic piece and produces flexural vibrations, again owing to take two piezoelectric ceramic pieces to be connected in series, so sensing sensitivity has improved twice; Body structure is simple, volume is little, bear pressure capability improves owing to receive, thereby has improved serviceable life; Because the externally threaded connector of making on mounting bracket is easy to connect during use.
Description of drawings;
Fig. 1 is the acoustic receiving transducer structural representation;
Fig. 2 receives body and piezoelectric ceramics chip architecture connection diagram.
Embodiment:
Acoustic receiving transducer: constitute by reception body 1, piezoelectric ceramic piece 2, lead 3, rubber cover body 4, mounting bracket 5, retainer plate 6; It is the cavity metal construction of thin-walled that the reception system becomes both ends of the surface, for the convenience of processing, will receive system and become an opening concave shaped structure and a plain film structure, sticks with glue during installation; Retainer plate can be made band shape, also can make on the both sides of band shape upset auricle several, also can make whole upset auricle on banded both sides; Mounting bracket is made the limit that turn on having on both sides according to the baseplane for the basis, its shape as
Below the baseplane, be shaped on externally threaded connector, make endoporus on connector and the baseplane, as the path of lead; Two piezoelectric ceramic pieces are installed in respectively on the inside surface of reception body two ends, can stick with glue, two piezoelectric ceramic pieces are connected in series with lead, two piezoelectric ceramic pieces are connected with lead respectively, the rubber cover body is installed in the periphery that receives body, and the rubber cover body will receive body and wrap up, and make the reception body be in a kind of free state, be not subjected to the influence of external force vibration, the rubber cover body be installed in turn on the mounting bracket
In, retainer plate being installed in the outer of rubber cover body placing, retainer plate two ends and mounting bracket are fixed, and are connected on the measuring oil well liquid level depth device by the connector on the mounting bracket during use.
Claims (2)
1. acoustic receiving transducer is characterized in that being made of reception body, piezoelectric ceramic piece, lead, rubber cover body, mounting bracket, retainer plate; Two piezoelectric ceramic pieces are sticked on respectively on the two sides inside surface that receives body, two piezoelectric ceramic pieces are connected in series, two piezoelectric ceramic pieces are connected with lead respectively, in the periphery that receives body the rubber cover body is installed, the rubber cover body is installed on the mounting bracket, is installed in retainer plate on the rubber cover body and is fixed on the mounting bracket.
2. acoustic receiving transducer according to claim 1 is characterized in that externally threaded connector has been made in the bottom of mounting bracket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200131874U CN201075018Y (en) | 2007-07-09 | 2007-07-09 | Sound wave receiving sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200131874U CN201075018Y (en) | 2007-07-09 | 2007-07-09 | Sound wave receiving sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201075018Y true CN201075018Y (en) | 2008-06-18 |
Family
ID=39520278
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200131874U Expired - Fee Related CN201075018Y (en) | 2007-07-09 | 2007-07-09 | Sound wave receiving sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201075018Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102477863A (en) * | 2010-11-26 | 2012-05-30 | 中国石油天然气股份有限公司 | Device for monitoring liquid level of CBM (coal-bed methane) unconfined well |
| CN102751133A (en) * | 2012-07-12 | 2012-10-24 | 肖国选 | Piezoelectric variable-frequency contact type liquid level switch |
| CN108287461A (en) * | 2017-12-22 | 2018-07-17 | 兰州空间技术物理研究所 | A kind of cesium beam tube titanium getter pump anode canister bracing means |
| CN108487901A (en) * | 2018-05-23 | 2018-09-04 | 大庆市亿动科技有限公司 | Oil well multi-functional automatic liquid level monitor based on velocity of sound sensor |
-
2007
- 2007-07-09 CN CNU2007200131874U patent/CN201075018Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102477863A (en) * | 2010-11-26 | 2012-05-30 | 中国石油天然气股份有限公司 | Device for monitoring liquid level of CBM (coal-bed methane) unconfined well |
| CN102477863B (en) * | 2010-11-26 | 2015-10-14 | 中国石油天然气股份有限公司 | Liquid level measuring device of coalbed gas non-pressure well |
| CN102751133A (en) * | 2012-07-12 | 2012-10-24 | 肖国选 | Piezoelectric variable-frequency contact type liquid level switch |
| CN108287461A (en) * | 2017-12-22 | 2018-07-17 | 兰州空间技术物理研究所 | A kind of cesium beam tube titanium getter pump anode canister bracing means |
| CN108487901A (en) * | 2018-05-23 | 2018-09-04 | 大庆市亿动科技有限公司 | Oil well multi-functional automatic liquid level monitor based on velocity of sound sensor |
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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: 20080618 Termination date: 20130709 |