CN103090915A - Transducer capable of being directly applied to various ultrasonic flow meters - Google Patents
Transducer capable of being directly applied to various ultrasonic flow meters Download PDFInfo
- Publication number
- CN103090915A CN103090915A CN2013100215475A CN201310021547A CN103090915A CN 103090915 A CN103090915 A CN 103090915A CN 2013100215475 A CN2013100215475 A CN 2013100215475A CN 201310021547 A CN201310021547 A CN 201310021547A CN 103090915 A CN103090915 A CN 103090915A
- Authority
- CN
- China
- Prior art keywords
- piezoelectric ceramic
- transducer
- hard shell
- plate rack
- ceramic piece
- 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
Images
Landscapes
- Measuring Volume Flow (AREA)
Abstract
The invention discloses a transducer capable of being directly applied to various ultrasonic flow meters. The transducer capable of being directly applied to the various ultrasonic flow meters is characterized by comprising a piezoelectric ceramic wafer support, a cylindrical sealing element which is connected with the outer portion of the piezoelectric ceramic wafer support in a sleeved mode, and a hard outer shell which contains a piezoelectric ceramic wafer, the piezoelectric ceramic wafer support and the cylindrical sealing element, the piezoelectric ceramic wafer support and the cylindrical sealing element are fixed on the hard outer shell through fixing screws, a whole space is formed by a gap between a ultrasonic emitting surface or a receiving surface and an annular air slot, an air slot and the piezoelectric ceramic wafer and a free space in the hard outer shell, the whole space becomes a sealed space after vent holes are sealed through sealing screws, and the whole space is filled with coupling agent. The transducer capable of being directly applied to the various ultrasonic flow meters has the advantages of being capable of assembling the transducer to a whole component which is applied to the device according to different application situations or requirements, good in corrosion resistance, impurities resistance, scaling resistance, temperature character, pressure resistant character and signals, and capable of preventing the piezoelectric ceramic wafer from cracking and solving the problem that the ultrasonic transducer can not solve.
Description
Technical field
The present invention relates to a kind of transducer that directly applies to multiple ultrasonic flow meter.
Background technology
Ultrasonic flow meter is widely used as a kind of site inspection device, and its critical component is exactly for the transducer of measuring sampling.Existing ultrasonic flow meter is all fixed installation when equipping at the scene assembling mostly, and assembles and debug and all will carry out before installation, in case be damaged, keeping in repair and changing all needs shutdown process.In addition; anticorrosive, anti-impurity, the ant-scaling effect of existing ultrasonic flow meter self are all bad; need the additional configuration protective device too fast to prevent ultrasonic flow meter damage when using in the more intense liquid medium of corrosivity; this has just brought mounting process complicated, the drawbacks such as maintenance cost height.Particularly transducer produces serious crack performance because the impact that changed by temperature, pressure causes piezoelectric ceramic piece in actual use, to cause and to sample, cause whole measuring equipment disabler, this phenomenon whole measuring equipment in a single day occurs or instrument just can't be worked, must be in the situation that the whole measuring equipment of replacing out of service or instrument, loss is serious, and this is a great problem that troubles for many years the ultrasonic measurement application.Therefore, a kind of novel ultrasonic flow meter is badly in need of
Development the present invention be directed to the problems referred to above and custom-designed.
Summary of the invention
The present invention is directed to the proposition of above problem, and develop a kind of transducer that directly applies to multiple ultrasonic flow meter.The technological means that the present invention adopts is as follows:
This is a kind of transducer architecture device that is directly applied for the ultrasonic flow meter of multiple volume and different size, it is characterized in that comprising:
Be used for the fixedly piezoelectric ceramics plate rack of piezoelectric ceramic piece;
Tubular seal for the outside that is socketed in the piezoelectric ceramics plate rack;
Hard shell in being used for piezoelectric ceramic piece, piezoelectric ceramics plate rack and tubular seal are accommodated in;
Described piezoelectric ceramics plate rack is tubular, and its top is stiff end, and is provided with the through hole that passes through for fixed screw on stiff end, and is used for the same tapped through hole that screw matches of adjusting; Described piezoelectric ceramic piece is fixed on the bottom of piezoelectric ceramics plate rack, is connected with respectively the piezoelectric ceramic piece lead-in wire on two electrodes of described piezoelectric ceramic piece, and described piezoelectric ceramic piece lead-in wire is connected on the transducer lead-in wire by the transducer lead cable; Be filled with the acoustic resistance filler in described piezoelectric ceramics plate rack;
The outer wall of described tubular seal is provided with air slot;
The inwall of described hard shell is provided with annular air slot, and has on the wall of the hard shell of annular air slot position and make hard shell inside with the gas port of exterior; The bottom of described hard shell is fixedly connected with ultrasound wave transmitting/receiving face by the arch connecting portion; Described piezoelectric ceramic piece is with leaving the gap between ultrasound wave transmitting/receiving face;
During use, annular flat packing ring, ring spring pad and tubular seal are enclosed within on the piezoelectric ceramics plate rack successively, then by fixed screw, piezoelectric ceramics plate rack and tubular seal are fixed on hard shell; To adjust again screw and be screwed in tapped through hole, and the lower end of adjustment screw withstands on the annular flat packing ring; Described annular air slot, air slot, piezoelectric ceramic piece form an overall space with remaining space in the gap between ultrasound wave transmitting/receiving face and hard shell; After described gas port sealed by sealed screw, above-mentioned overall space just became confined space, had been filled with the ultrasonic listening couplant in described confined space.
In the contact position of described piezoelectric ceramics plate rack with the tubular seal, and the tubular seal is respectively equipped with grommet type seals II and grommet type seals I with the contact position of hard shell.
The top of described hard shell also is provided with the transducer enclosure upper cover.
Compare transducer of the present invention with prior art, have following features:
One, can and use by different application scenarios and need to the transducer hard shell can be welded on base table, other parts of rear assembling transducer can carry out in site of deployment, also can carry out in online the application;
Two, needing transducer group to be dressed up an integral device by different application scenarios and application is applied on corresponding equipment;
Three, has good acoustic-electric matching performance, be easy to hyperacoustic transmission, emission and receive, the present invention coordinates with the routine sampling circuit, perhaps coordinate all very convenient with the adaptively sampled circuit of special use, sampled signal is reliable and stable, special-purpose adaptively sampled circuit comprises: transducer driving circuit, echo receiving circuit, sampled signal generative circuit, and certainly imitate positive circuit etc.;
Four, the ultrasonic transducer that is fit to multiple volume size; It is convenient to install, use, change, and signal stabilization is reliable, and temperature characterisitic, load performance and durability are good;
In addition, the characteristics such as that this transducer also has is simple in structure, be convenient to produce, with low cost are suitable for extensive popularization.
Description of drawings
Fig. 1 is the structural representation of transducer of the present invention;
Fig. 2 is the cut-open view of the piezoelectric ceramics plate rack of transducer of the present invention;
Fig. 3 is the vertical view of the piezoelectric ceramics plate rack of transducer of the present invention;
Fig. 4 is the cut-open view of the tubular seal of transducer of the present invention;
Fig. 5 is the upward view of the tubular seal of transducer of the present invention.
in figure: 1, the transducer lead-in wire, 2, the transducer lead cable, 3, the annular flat packing ring, 4, fixed screw, 5, the annular air slot, 6, sealed screw, 7, the acoustic resistance filler, 8, the ultrasonic listening couplant, 9, the piezoelectric ceramics plate rack, 10, adjust screw, 11, the ring spring pad, 12, the transducer enclosure upper cover, 13, the grommet type seals I, 14, the gas port sealing-plug, 15, gas port, 16, the grommet type seals II, 17, the tubular seal, 171, air slot, 18, the piezoelectric ceramic piece lead-in wire, 19, piezoelectric ceramic piece, 20, hard shell, 21, ultrasound wave transmitting/receiving face, 211, the arch connecting portion.
Embodiment
Referring to the description of drawings embodiments of the invention.In this manual, for the purpose of simplifying the description, the relation of position and direction between corresponding component be used for to be described, as above, lower end, word inside and outside, top and bottom only refer to position relationship and direction in accompanying drawing.
Comprise to the transducer that this directly applies to multiple ultrasonic flow meter shown in Figure 5 as Fig. 1: be used for the fixedly piezoelectric ceramics plate rack 9 of piezoelectric ceramic piece 19; Tubular seal 17 for the outside that is socketed in piezoelectric ceramics plate rack 9; Hard shell 20 in being used for piezoelectric ceramic piece 19, piezoelectric ceramics plate rack 9 and tubular seal 17 are accommodated in; Described piezoelectric ceramics plate rack 9 is tubular, and its top is stiff end, and is provided with the through hole that passes through for fixed screw 4 on stiff end, and is used for the same tapped through hole that screw 10 matches of adjusting; Described piezoelectric ceramic piece 19 is fixed on the bottom of piezoelectric ceramics plate rack 9, is connected with respectively piezoelectric ceramic piece lead-in wire 18 on two electrodes of described piezoelectric ceramic piece 19, and described piezoelectric ceramic piece lead-in wire 18 is connected on transducer lead-in wire 1 by transducer lead cable 2; Filling acoustic resistance filler 7 in described piezoelectric ceramics plate rack 9; The outer wall of described tubular seal 17 is provided with air slot 171; The inwall of described hard shell 20 is provided with annular air slot 5, and has on the wall of the hard shell 20 of annular air slot 5 positions and make hard shell 20 inside with the gas port 15 of exterior; The bottom of described hard shell 20 is fixedly connected with ultrasound wave transmitting/receiving face 21 by arch connecting portion 211, can hard shell 20, arch connecting portion 211 and ultrasound wave transmitting/receiving face 21 be made of one structure by casting technique; Described piezoelectric ceramic piece 19 is with leaving the gap between ultrasound wave transmitting/receiving face 21; During use, annular flat packing ring 3, ring spring pad 11 and tubular seal 17 are enclosed within on piezoelectric ceramics plate rack 9 successively, then by fixed screw 4, piezoelectric ceramics plate rack 9 and tubular seal 17 are fixed on hard shell 20; To adjust again screw 10 and be screwed in tapped through hole, and the lower end of adjustment screw 10 withstands on annular flat packing ring 3; Described annular air slot 5, air slot 171, piezoelectric ceramic piece 19 form an overall space with the gap between ultrasound wave transmitting/receiving face 21 and the interior remaining space of hard shell 20; After described gas port 15 seals (the gas port sealing-plug 14 that namely is provided with by sealed screw 6 gets final product gas port 15 shutoff) by sealed screw 6, above-mentioned overall space just becomes confined space, has been filled with ultrasonic listening couplant 8 in described confined space.Described piezoelectric ceramics plate rack 9 is with the contact position of tubular seal 17, and tubular seal 17 is respectively equipped with grommet type seals II 16 and grommet type seals I 13 with the contact position of hard shell 20.The top of described hard shell 20 also is provided with transducer enclosure upper cover 12 (device that is used for revealing hard shell 20 outsides blocks).
Concrete installation process is as follows: transducer lead cable 2 is put into piezoelectric ceramics plate rack 9, two ends reserve transducer lead-in wire 1 and piezoelectric ceramic piece lead-in wire 18 has enough length, filling is mixed with the acoustic resistance filler 7 of acoustic resistance particle in piezoelectric ceramics plate rack 9, piezoelectric ceramic piece lead-in wire 18 is welded to respectively on two battery lead plates of piezoelectric ceramic piece 19, and fixedly piezoelectric ceramic piece 19; Package annular flat packing ring 3, ring spring pad 11 and grommet type seals II 16 on piezoelectric ceramics plate rack 9, then put the tubular seal 17 that installs grommet type seals I 13 additional; Inserting filling quantitative ultrasound ripple surveys in the hard shell 20 of couplant 8, tighten each fixed screw 4, until having, the gas port 15 of ultrasonic listening couplant on annular air slot 5 overflow, add gas port sealing-plug 14, the sealed screw 6 of screwing on, after twisting each adjustment screw 10 annular spring pads 11 of compression, add transducer enclosure upper cover 12.
This transducer also can be applied to other ultrasonic measurement systems.Be characterized in coordinating multiple sample circuit convenient, be easy to the ultrasound wave emission and drive and the echoed signal reception ﹠ disposal, signal stabilization is reliable, and good sampled signal; Can be in site of deployment in traditional thread binding and replacing, production and processing is simple, is assembling mode fully, also can assemble in site of deployment.Have well anticorrosive, anti-impurity, ant-scaling effect for certain liquid medium.Have good temperature characterisitic, good voltage endurance, the crack performance of having avoided piezoelectric ceramic piece to occur.The ultrasonic transducer that is fit to multiple volume size so that for many years ultrasonic transducer still open question be resolved.
The above; only be the better embodiment of the present invention; but protection scope of the present invention is not limited to this; anyly be familiar with those skilled in the art in the technical scope that the present invention discloses; be equal to replacement or changed according to technical scheme of the present invention and inventive concept thereof, within all should being encompassed in protection scope of the present invention.
Claims (3)
1. transducer that directly applies to multiple ultrasonic flow meter is characterized in that comprising:
Be used for the fixedly piezoelectric ceramics plate rack (9) of piezoelectric ceramic piece (19);
Tubular seal (17) for the outside that is socketed in piezoelectric ceramics plate rack (9);
Hard shell (20) in being used for piezoelectric ceramic piece (19), piezoelectric ceramics plate rack (9) and tubular seal (17) are accommodated in;
Described piezoelectric ceramics plate rack (9) is tubular, and its top is stiff end, and is provided with the through hole that passes through for fixed screw (4) on stiff end, and is used for the same tapped through hole that screw (10) matches of adjusting; Described piezoelectric ceramic piece (19) is fixed on the bottom of piezoelectric ceramics plate rack (9), be connected with respectively piezoelectric ceramic piece lead-in wire (18) on two electrodes of described piezoelectric ceramic piece (19), described piezoelectric ceramic piece lead-in wire (18) is connected on transducer lead-in wire (1) by transducer lead cable (2); Be filled with acoustic resistance filler (7) in described piezoelectric ceramics plate rack (9) inner chamber;
The outer wall of described tubular seal (17) is provided with air slot (171);
The inwall of described hard shell (20) is provided with annular air slot (5), and has on the wall of the hard shell (20) of annular air slot (5) position and make the inner gas port (15) with exterior of hard shell (20); The bottom of described hard shell (20) is fixedly connected with ultrasound wave transmitting/receiving face (21) by arch connecting portion (211); Described piezoelectric ceramic piece (19) is with leaving the gap between ultrasound wave transmitting/receiving face (21) inwall;
During use, annular flat packing ring (3), the ring spring pad (11) that buffer action is arranged and tubular seal (17) are enclosed within on piezoelectric ceramics plate rack (9) successively, then by fixed screw (4), piezoelectric ceramics plate rack (9) and tubular seal (17) are fixed on hard shell (20); To adjust again screw (10) and be screwed in tapped through hole, and the lower end of adjustment screw (10) withstands on annular flat packing ring (3); Described annular air slot (5), air slot (171), piezoelectric ceramic piece (19) form an overall space with the gap between ultrasound wave transmitting/receiving face (21) and the interior remaining space of hard shell (20); After described gas port (15) sealed by sealed screw (6), above-mentioned overall space just became confined space, is filled with ultrasonic listening couplant (8) in described confined space.
2. a kind of transducer that directly applies to multiple ultrasonic flow meter according to claim 1, it is characterized in that in the contact position of described piezoelectric ceramics plate rack (9) with tubular seal (17), and the contact position of the same hard shell of tubular seal (17) (20) is respectively equipped with grommet type seals II (16) and grommet type seals I (13).
3. a kind of transducer that directly applies to multiple ultrasonic flow meter according to claim 1, is characterized in that the top of described hard shell (20) also is provided with transducer enclosure upper cover (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310021547.5A CN103090915B (en) | 2013-01-21 | 2013-01-21 | Transducer capable of being directly applied to various ultrasonic flow meters |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310021547.5A CN103090915B (en) | 2013-01-21 | 2013-01-21 | Transducer capable of being directly applied to various ultrasonic flow meters |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103090915A true CN103090915A (en) | 2013-05-08 |
| CN103090915B CN103090915B (en) | 2015-03-18 |
Family
ID=48203770
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310021547.5A Active CN103090915B (en) | 2013-01-21 | 2013-01-21 | Transducer capable of being directly applied to various ultrasonic flow meters |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103090915B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105181819A (en) * | 2015-10-21 | 2015-12-23 | 江苏融庆科技有限公司 | Ultrasonic energy converter |
| CN106153148A (en) * | 2015-05-14 | 2016-11-23 | 株式会社基恩士 | Ultrasonic flow switchs |
| CN108802424A (en) * | 2018-08-21 | 2018-11-13 | 苏州源源机械设备有限公司 | A kind of open channel flow velocity sensor device |
| CN116625445A (en) * | 2023-07-26 | 2023-08-22 | 上海中核维思仪器仪表股份有限公司 | Gas ultrasonic flowmeter |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3925692A (en) * | 1974-06-13 | 1975-12-09 | Westinghouse Electric Corp | Replaceable element ultrasonic flowmeter transducer |
| CA2071828A1 (en) * | 1989-12-15 | 1991-06-16 | Alexander Von Jena | Soundproofed holding device for an ultrasonic transducer |
| US5814736A (en) * | 1994-04-19 | 1998-09-29 | Siemens Aktiengesellschaft | Holder for ultrasonic transducers |
| CN201527288U (en) * | 2009-11-12 | 2010-07-14 | 中环天仪股份有限公司 | Piezo-electricity ultrasonic transducer for liquid flow meters |
| CN102019273A (en) * | 2010-12-21 | 2011-04-20 | 吴银隆 | Ultrasonic transducer |
| CN202655213U (en) * | 2012-06-07 | 2013-01-09 | 邓鲁坚 | Ultrasonic transducer and corresponding ultrasonic flow sensor |
| CN203053498U (en) * | 2013-01-21 | 2013-07-10 | 大连环岛仪表有限公司 | Energy converter directly applied to various ultrasonic flowmeters |
-
2013
- 2013-01-21 CN CN201310021547.5A patent/CN103090915B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3925692A (en) * | 1974-06-13 | 1975-12-09 | Westinghouse Electric Corp | Replaceable element ultrasonic flowmeter transducer |
| CA2071828A1 (en) * | 1989-12-15 | 1991-06-16 | Alexander Von Jena | Soundproofed holding device for an ultrasonic transducer |
| US5814736A (en) * | 1994-04-19 | 1998-09-29 | Siemens Aktiengesellschaft | Holder for ultrasonic transducers |
| CN201527288U (en) * | 2009-11-12 | 2010-07-14 | 中环天仪股份有限公司 | Piezo-electricity ultrasonic transducer for liquid flow meters |
| CN102019273A (en) * | 2010-12-21 | 2011-04-20 | 吴银隆 | Ultrasonic transducer |
| CN202655213U (en) * | 2012-06-07 | 2013-01-09 | 邓鲁坚 | Ultrasonic transducer and corresponding ultrasonic flow sensor |
| CN203053498U (en) * | 2013-01-21 | 2013-07-10 | 大连环岛仪表有限公司 | Energy converter directly applied to various ultrasonic flowmeters |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106153148A (en) * | 2015-05-14 | 2016-11-23 | 株式会社基恩士 | Ultrasonic flow switchs |
| CN105181819A (en) * | 2015-10-21 | 2015-12-23 | 江苏融庆科技有限公司 | Ultrasonic energy converter |
| CN105181819B (en) * | 2015-10-21 | 2018-04-24 | 江苏融庆科技有限公司 | A kind of ultrasonic transducer |
| CN108802424A (en) * | 2018-08-21 | 2018-11-13 | 苏州源源机械设备有限公司 | A kind of open channel flow velocity sensor device |
| CN116625445A (en) * | 2023-07-26 | 2023-08-22 | 上海中核维思仪器仪表股份有限公司 | Gas ultrasonic flowmeter |
| CN116625445B (en) * | 2023-07-26 | 2023-09-22 | 上海中核维思仪器仪表股份有限公司 | Gas ultrasonic flowmeter |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103090915B (en) | 2015-03-18 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103090915A (en) | Transducer capable of being directly applied to various ultrasonic flow meters | |
| CN106969747B (en) | Static leveling system | |
| CN102155985A (en) | Device for testing high hydrostatic pressure and acoustic pressure sensitivity of hydrophone | |
| CN105784268A (en) | Multi-channel pressure sensor calibration device based on gas source load | |
| CN202141511U (en) | Column type weighing sensor | |
| CN209945455U (en) | Packaging device for reducing noise of ultrasonic transducer | |
| CN104568109A (en) | Hydrophone high hydrostatic pressure acoustic pressure sensitivity testing device | |
| CN203053498U (en) | Energy converter directly applied to various ultrasonic flowmeters | |
| CN204027616U (en) | A kind of transducer of ultrasonic heat meter | |
| CN202141502U (en) | Liquid level sensor | |
| CN103884399A (en) | Liquid level transmitter | |
| CN108716941A (en) | A kind of magnetostriction measuring multiple parameters transmitter | |
| CN204101104U (en) | The case of electronic device of flowmeter and flowmeter | |
| CN201149534Y (en) | Agglomeration type small-volume waterproof pressure sensor | |
| CN206945209U (en) | A kind of pressure sensor assembling structure | |
| CN207248269U (en) | Modularization target type meter converter | |
| CN104502541A (en) | Gas chamber device for gas analyzer | |
| CN204831471U (en) | Novel magnetism floater liquid level changer | |
| CN204330521U (en) | Density transmitter | |
| CN203191137U (en) | Pressure transmitter | |
| CN103606776A (en) | Floating sealing electric connector | |
| CN203934188U (en) | A kind of via hole of electrical appliance wires under water waterproof seal | |
| CN206803042U (en) | Anti-explosion visual pore lamp | |
| CN205538094U (en) | Multichannel pressure sensor calibration device based on air supply load | |
| CN204347002U (en) | A kind of gas cell device of gas analyzer |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: No. 43-86-3, Majia village, Zhanqian street, Jinzhou District, Dalian City, Liaoning Province Co-patentee after: Tan Huiyong Patentee after: Dalian Huandao Intelligent Technology Co., Ltd Co-patentee after: Ding Maoxiang Address before: Shahekou District of Dalian City, Liaoning province 116000 five Street East long 2A Galiya apartment 1907 room Co-patentee before: Tan Huiyong Patentee before: Dalian Huandao Instrument Co.,Ltd. Co-patentee before: Ding Maoxiang |
|
| CP03 | Change of name, title or address |