CN202393546U - Piezoelectric sensor system inside pipeline - Google Patents
Piezoelectric sensor system inside pipeline Download PDFInfo
- Publication number
- CN202393546U CN202393546U CN2011205584415U CN201120558441U CN202393546U CN 202393546 U CN202393546 U CN 202393546U CN 2011205584415 U CN2011205584415 U CN 2011205584415U CN 201120558441 U CN201120558441 U CN 201120558441U CN 202393546 U CN202393546 U CN 202393546U
- Authority
- CN
- China
- Prior art keywords
- pipeline
- piezoelectric
- supporter
- piezoelectric sensor
- transducer system
- 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
Links
Images
Abstract
The utility model relates to a pipeline pressure sensor system, particularly to a piezoelectric sensor system inside a pipeline, which includes a pipeline and a piezoelectric sensor, wherein the piezoelectric sensor is adhered onto the inner wall of the pipeline through insulating gel and achieves integral insulation. According to the piezoelectric sensor system inside the pipeline, provided by the utility model, the specially designed piezoelectric senor insulating in whole can be fixed on the inner wall of the pipeline, is directly contacted with to-be-measured fluid for pressure measurement, and has high sensitivity; besides, the structure is simple, and the use is convenient.
Description
Technical field
The utility model relates to a kind of pipeline pressure sensor-based system.More specifically, the utility model relates to piezoelectric transducer system in a kind of pipeline.
Background technology
Piezoelectric transducer is based on the dynamo-electric change type sensor of piezoelectric effect.Because its bandwidth, highly sensitive, signal to noise ratio (S/N ratio) is high, simple in structure, reliable operation, in light weight, its application is extensive more, comprising the accurate measurement that is used for pipeline pressure.Chinese patent CN101644615 B discloses a kind of tube diameter variable clamping pressure sensor; It is made up of sensor main body, holding ring, sensitive body, pedestal, clamp device, signal output apparatus six parts; The principle that the device of described induction pressure utilizes electric charge to superpose; On the high-pressure oil pipe between diesel motor injection pump and the nozzle, when engine ignition burnt, oil pipe produced small expansion to sensor under the effect of hydraulic oil pulse with certain pretightning force clip; Thereby pressing sensing device sensitive body produces electric charge output, and its output charge supplies the secondary instrument collection analysis after special differential charge amplifier conversion is amplified.This pressure transducer is clamped on the external diameter of tested pipeline, and structure is quite complicated.And with piezoelectric transducer be arranged in the pipeline (on the inwall) thus forming a kind of pipeline piezoelectric transducer system does not appear in the newspapers as yet.
The utility model content
The purpose of the utility model is to provide piezoelectric transducer system in a kind of pipeline that is arranged on the inner-walls of duct, and this system can be used to the pressure of measuring channel inner fluid (liquid or gas), thereby realizes the accurate control to pipeline pressure or flow.
For realizing above-mentioned purpose; The piezoelectric transducer system comprises in the pipeline in the utility model: pipeline, piezoelectric sensor; It is characterized in that; Described piezoelectric sensor adopts insulating gel to stick on the said inner-walls of duct, and said piezoelectric sensor comprises that the compliant conductive sheet that has pro and con, piezoelectric ceramic piece and the employing resin glue that adopts resin glue simultaneously to be pasted on said compliant conductive sheet reverse side are pasted on the conductive support on the piezoelectric ceramic piece another side both sides; Said supporter has one highly makes when through supporter said piezoelectric sensor being pasted on said inner-walls of duct piezoelectric ceramics pitch of fins inner-walls of duct one preset distance; First electrode that on said compliant conductive sheet, has predetermined fixed has second electrode of predetermined fixed on said supporter; Said first electrode cable and second electrode cable are drawn said pipeline, and said piezoelectric sensor integral body has the flexible insulation coating.
In a kind of embodiment, said compliant conductive sheet adopts metal or metal alloy to process, and preferably adopts copper, aluminium or stainless steel to process.
In a kind of embodiment, said supporter adopts metal or metal alloy to process, and preferably adopts copper, aluminium or stainless steel to process.
In a kind of embodiment, said first electrode and second electrode carry out adopting welding manner to be welded in advance on said compliant conductive sheet and the supporter before the integral body coating insulating coating at said piezoelectric sensor.
The piezoelectric transducer system can be fixed in inner-walls of duct with the piezoelectric sensor of specially designed integral insulation in the pipeline in the utility model, the hydrodynamic pressure that direct contact will be measured, and it is highly sensitive, and simple in structure, and is easy to use.
Description of drawings
Fig. 1 is the spatial structure skeleton view of the interior piezoelectric transducer system of a kind of pipeline of the utility model.
Embodiment
For more being expressly understood the utility model, combine accompanying drawing that the utility model is described further at present.Should be appreciated that the embodiment of the utility model described in the accompanying drawing is merely explanation the utility model usefulness, does not constitute the restriction to the utility model.The protection domain of the utility model is limited appending claims.
Should be appreciated that the accompanying drawing of the utility model is merely explanation the utility model usefulness, be not in proportion with the true form accurate Drawing, so these accompanying drawings should not become the restriction to the utility model.
" front " in the utility model refers to the face of compliant conductive sheet over against fluid, and " reverse side " refers to and said " front " relative face.
" flexibility " in the utility model is meant that material itself can fully be out of shape and do not influence the pressure of piezoelectric ceramic piece sense pipeline.
As shown in Figure 1, piezoelectric transducer system 100 comprises pipeline 10 in the pipeline of the utility model, and pipeline 10 negotiable fluids are like liquid or gas etc.On the inwall of pipeline 10, be fixed with piezoelectric sensor 20.Piezoelectric sensor 20 comprises compliant conductive sheet 210, piezoelectric ceramic piece 220 and supporter 230.
Compliant conductive sheet 210 should be selected for use and can like scale copper or thin stainless steel substrates etc., but be not limited thereto with the material of piezoelectric ceramic piece 220 compressive deformations.Piezoelectric ceramic piece 220 can select for use piezoceramic material commonly used to process.The supporter 230 preferred conductor materials that adopt are processed, like copper, aluminium, stainless steel etc.
The reverse side of compliant conductive sheet 210 adopts the one side bonding of resin glue and piezoelectric ceramic piece 220, and the front then is fixedly connected with, as is welded with first electrode 211.The both sides of the another side of piezoelectric ceramic piece 220 are adopted resin glue bonding supporter 230 respectively.Supporter 230 has a height, thereby makes piezoelectric ceramic piece 220 apart from inner-walls of duct one preset distance.This distance is preferably in the 1-5mm scope.On supporter 230, be fixed with, as be welded with second electrode 231.
Said resin glue is preferably electroconductive resin glue, as but be not limited to mix the epoxide-resin glue of silver powder.
Before piezoelectric sensor 20 usefulness insulating gels are bonded in pipeline 10 inwalls, it is carried out integral insulation.The lead 111 and 131 of predetermined fixed on first electrode 211 and second electrode 231 received the measurement instrument 30 of outside through the hole on the duct wall, and can carry out pressure, flow control according to measurement data as required.Hole on the duct wall adopts encapsulant to seal.
Certainly, lead 111 and 131 also can be drawn through the valve on the pipeline 10.
Based on description to the utility model preferred implementation; Should be clear; Be not limited only to the specific detail set forth in the top instructions the utility model that appending claims limited, what do not break away from the utility model aim or scope possibly reach the purpose of the utility model equally to the many conspicuous change of the utility model.
Claims (7)
1. piezoelectric transducer system in the pipeline; Comprise: pipeline, piezoelectric sensor; It is characterized in that; Described piezoelectric sensor adopts insulating gel to stick on the said inner-walls of duct, and said piezoelectric sensor comprises that the compliant conductive sheet that has pro and con, piezoelectric ceramic piece and the employing resin glue that adopts resin glue simultaneously to be pasted on said compliant conductive sheet reverse side are pasted on the conductive support on the piezoelectric ceramic piece another side both sides; Said supporter has one highly makes when through supporter said piezoelectric sensor being pasted on said inner-walls of duct piezoelectric ceramics pitch of fins inner-walls of duct one preset distance; First electrode that on described compliant conductive sheet, has predetermined fixed has second electrode of predetermined fixed on said supporter; Said first electrode cable and second electrode cable are drawn said pipeline, and said piezoelectric sensor integral body has the flexible insulation coating.
2. piezoelectric transducer system in the pipeline according to claim 1, said resin glue is an electroconductive resin glue.
3. piezoelectric transducer system in the pipeline according to claim 1 is characterized in that, said compliant conductive sheet adopts metal or metal alloy to process.
4. piezoelectric transducer system in the pipeline according to claim 3 is characterized in that, said compliant conductive sheet adopts copper, aluminium or stainless steel to process.
5. piezoelectric transducer system in the pipeline according to claim 1 is characterized in that, said supporter adopts metal or metal alloy to process.
6. piezoelectric transducer system in the pipeline according to claim 5 is characterized in that, said supporter adopts copper, aluminium or stainless steel to process.
7. according to piezoelectric transducer system in each described pipeline of claim 1-6; It is characterized in that said first electrode and second electrode carry out adopting welding manner to be welded in advance on said compliant conductive sheet and the supporter before the integral body coating insulating coating at said piezoelectric sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205584415U CN202393546U (en) | 2011-12-28 | 2011-12-28 | Piezoelectric sensor system inside pipeline |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205584415U CN202393546U (en) | 2011-12-28 | 2011-12-28 | Piezoelectric sensor system inside pipeline |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202393546U true CN202393546U (en) | 2012-08-22 |
Family
ID=46668460
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011205584415U Expired - Fee Related CN202393546U (en) | 2011-12-28 | 2011-12-28 | Piezoelectric sensor system inside pipeline |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202393546U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107178709A (en) * | 2017-06-19 | 2017-09-19 | 杨力 | A kind of pipeline intellectual monitoring structure |
| CN112014024A (en) * | 2019-05-31 | 2020-12-01 | 天津大学青岛海洋技术研究院 | Underground pipe network gas pressure detection method based on flexible sensor network |
-
2011
- 2011-12-28 CN CN2011205584415U patent/CN202393546U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107178709A (en) * | 2017-06-19 | 2017-09-19 | 杨力 | A kind of pipeline intellectual monitoring structure |
| CN112014024A (en) * | 2019-05-31 | 2020-12-01 | 天津大学青岛海洋技术研究院 | Underground pipe network gas pressure detection method based on flexible sensor network |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| RU2013142172A (en) | ACOUSTIC CONVERTER UNIT FOR PRESSURE VESSEL | |
| CN202393546U (en) | Piezoelectric sensor system inside pipeline | |
| CN105865665B (en) | A kind of the preload force measuring method and device of flared fitting | |
| CN206330634U (en) | The sensor construction of plug-in type ultrasonic flowmeter | |
| CN100371695C (en) | Piezoresistance type free field pressure sensor | |
| CN103884399B (en) | Fluid level transmitter | |
| CN205138756U (en) | Wind -tunnel wind pressure monitoring pipe way frequency response correcting device | |
| CN105627106B (en) | A kind of infrasound sensor of gas pipeline leak detection | |
| CN204027616U (en) | A kind of transducer of ultrasonic heat meter | |
| CN101493367A (en) | Miniature dynamical stress sensor based on MEMS technology and method of producing same | |
| CN104596601B (en) | eight-channel ultrasonic flowmeter sensor | |
| CN107044874B (en) | Split non-pressure-bearing ultrasonic flowmeter probe mount pad | |
| CN206756238U (en) | A kind of ultrasonic transducer for gas flow measurement | |
| CN206161233U (en) | Portable vacuum measuring device | |
| CN202522583U (en) | Resistance strain transducer type device for detecting current speed in pipeline | |
| CN104965010B (en) | A kind of low temperature condenser type void fraction measuring device | |
| CN102564679B (en) | Pipeline piezoelectric type pressure sensor | |
| CN202420751U (en) | Piezoelectric type pressure sensor for pipes | |
| CN202420752U (en) | Pipeline piezoelectric pressure sensor | |
| CN201075018Y (en) | Sound wave receiving sensor | |
| CN110044520A (en) | The force snesor of pressure between measurement solid | |
| CN102410903A (en) | Piezoelectric type pressure sensor for pipes | |
| CN105388217B (en) | The ultrasonic guided wave transducer of detection pipeline can be built in | |
| CN202708602U (en) | Leakage detecting device for internal oil-gas pipeline | |
| CN209727175U (en) | A kind of high accurate hole flowmeter |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120822 Termination date: 20141228 |
|
| EXPY | Termination of patent right or utility model |