CN106328804B - The piezoelectric membrane polarization clamp of multichannel - Google Patents
The piezoelectric membrane polarization clamp of multichannel Download PDFInfo
- Publication number
- CN106328804B CN106328804B CN201611010427.5A CN201611010427A CN106328804B CN 106328804 B CN106328804 B CN 106328804B CN 201611010427 A CN201611010427 A CN 201611010427A CN 106328804 B CN106328804 B CN 106328804B
- Authority
- CN
- China
- Prior art keywords
- polarization
- copper sheet
- deckle board
- steel plate
- piezoelectric membrane
- 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
- 230000010291 membrane polarization Effects 0.000 title claims abstract description 11
- 230000010287 polarization Effects 0.000 claims abstract description 46
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 30
- 229910052802 copper Inorganic materials 0.000 claims abstract description 30
- 239000010949 copper Substances 0.000 claims abstract description 30
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 18
- 239000010959 steel Substances 0.000 claims abstract description 18
- 239000012528 membrane Substances 0.000 claims abstract description 13
- 230000001681 protective effect Effects 0.000 claims description 6
- 229920002545 silicone oil Polymers 0.000 claims description 5
- 238000005266 casting Methods 0.000 claims description 3
- 239000003822 epoxy resin Substances 0.000 claims description 3
- 229920000647 polyepoxide Polymers 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 7
- 230000035945 sensitivity Effects 0.000 abstract description 6
- 230000015556 catabolic process Effects 0.000 abstract description 4
- 238000009776 industrial production Methods 0.000 abstract description 2
- 238000002360 preparation method Methods 0.000 abstract description 2
- 239000010408 film Substances 0.000 description 10
- 238000010586 diagram Methods 0.000 description 3
- 239000002033 PVDF binder Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 229920002981 polyvinylidene fluoride Polymers 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 238000010891 electric arc Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10N—ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10N30/00—Piezoelectric or electrostrictive devices
- H10N30/01—Manufacture or treatment
- H10N30/04—Treatments to modify a piezoelectric or electrostrictive property, e.g. polarisation characteristics, vibration characteristics or mode tuning
- H10N30/045—Treatments to modify a piezoelectric or electrostrictive property, e.g. polarisation characteristics, vibration characteristics or mode tuning by polarising
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Electrophonic Musical Instruments (AREA)
Abstract
The invention discloses a kind of piezoelectric membrane polarization clamps of multichannel, including clamping deckle board, it is described to clamp the load steel plate for being provided with close to or away from and being parallel to each other in the space that deckle board encloses, the polarization copper sheet for clamping piezoelectric membrane is provided on described load two opposing end surfaces of steel plate.The present invention improves polarizing voltage, improve the sensitivity of piezoelectric transducer, the present invention prevents being polarized between copper sheet and film in polarization process that there are closed air bubbles, prevent high-voltage arc from forming caused film breakdown, the present invention improves the polarization speed of piezoelectric membrane, it reduces costs, preparation work is simple, strong operability, can carry out large-scale industrial production.
Description
Technical field
The invention belongs to intellectual material research fields, and in particular to a kind of piezoelectric membrane polarization clamp of multichannel.
Background technique
Currently, piezoelectric film sensor has very extensive answer in many fields such as medicine, architectural engineering, aerospace
With.And for piezoelectric film sensor, how to improve its sensitivity is the key that research.Piezoelectric membrane polarization assigns pressure
A most important link during conductive film sensor high tension performance, high sensing accuracy.Therefore how to piezoelectric material
Polarization process optimizes, and improves some problems existing for current polarization clamp, improves polarized efficiency and effect, reduces polarization
Cost, improve piezoelectric transducer sensitivity and sensing accuracy be particularly important.
In view of this, the present invention is directed to propose the piezoelectric membrane polarization clamp that a kind of multichannel can clamp, existing to solve
Some contradictions present in Polarization technique: (1) piezoelectric membrane polarization area is small, and polarization speed is slow, and low efficiency is at high cost；(2) it presses
Conductive film polarization area is big, and polarizing voltage is low, and the effect after polarization is poor, and sensitivity is low；(3) piezoelectric membrane and polarization sheet metal it
Between be bonded not tight, when polarization, can generate electric arc, cause film to be easy breakdown, be not easy to obtain the product of high quality.
Summary of the invention
The present invention proposes that the purpose is to provide a kind of piezoelectric membrane of multichannel in order to solve the problems existing in the prior art
Polarization clamp.
The technical scheme is that a kind of piezoelectric membrane polarization clamp of multichannel, including clamp deckle board, the clamping
The load steel plate for being provided with close to or away from and being parallel to each other in the space that deckle board encloses, described two opposing end surfaces of load steel plate
On be provided with clamp piezoelectric membrane polarization copper sheet.
Positive outside wire or negative outside wire are provided on the opposite end face of the polarization copper sheet.
The polarization copper sheet is connected with positive outside wire, negative outside wire by pad, described and DC high-voltage power supply
Earth leakage protective device be connected.
The polarization copper sheet independently forms circuit.
The clamping deckle board in "] " font, the clampings deckle board both side plate is with respect to presetting nut.
The load steel plate back is provided with fishbolt, and the fishbolt external screw thread is meshed with nut.
The clamping deckle board is formed using epoxy resin integral cast.
The load steel plate end face forms assembly die hole, and the polarization copper sheet back forms connection mould column, the connection mould
Column is fixed in assembly die hole.
The assembly die hole is hexagon, and the connection mould post shapes and assembly die hole are adapted.
The polarization copper sheet is formed with mould column formed by integrally casting is connect.
Beneficial effects of the present invention are as follows:
(1) polarization clamp of large area is changed to the single facet of multichannel by the design of multichannel by the invention
Fixture is accumulated, is formed into a loop alone, does not interfere with each other, this improvement improves the polarizing voltage of film between each channel.It is especially right
It in PZT/PVDF piezo-electricity composite material film or stretches for later PVDF thin film, area is bigger, internal existing defects
A possibility that possibility is bigger, and part is breakdown in polarization process is bigger.So from polarization area for this angle
Bigger, the polarizing voltage that when polarization can apply is lower, and the sensitivity of the film after polarization is lower, so this programme solution
It has determined this problem, has improved polarizing voltage, improve the sensitivity of piezoelectric transducer.
(2) the invention can pass through clamping in polarization process in the clamping device setting up and down of polarization copper sheet
Bolt, the copper sheet that makes to polarize tightly fit together with piezoelectric membrane, so as to prevent in polarization process polarization copper sheet and thin
There are closed air bubbles between film, prevent high-voltage arc from forming caused film breakdown.
(3) multi-passage design of the invention improves the polarization of piezoelectric membrane by increasing the quantity of polairzed area
Speed reduces costs, and preparation work is simple, strong operability, can carry out large-scale industrial production.
Detailed description of the invention
Fig. 1 is overall structure diagram of the invention；
Fig. 2 is the top view of polarization copper sheet in the present invention；
Fig. 3 is the side view of polarization copper sheet in the present invention；
Fig. 4 is the top view that steel plate is loaded in the present invention；
Fig. 5 is lead and earth leakage protective device connection schematic diagram in the present invention；
Fig. 6 is use state diagram in the present invention；
Wherein:
1 fishbolt, 2 nut
3, which clamp deckle board 4, loads steel plate
5 polarization copper sheets 6 connect mould column
7 piezoelectric membrane, 8 positive outside wire
9 negative outside wire, 10 pad
11 assembly 12 earth leakage protective devices of die hole
13 silicone oil, 14 DC high-voltage power supply.
Specific embodiment
Hereinafter, referring to drawings and examples, the present invention is described in detail:
As shown in Fig. 1 ~ 5, a kind of piezoelectric membrane polarization clamp of multichannel, including clamp deckle board 3, the clamping deckle board 3
The load steel plate 4 for being provided with close to or away from and being parallel to each other in the space of enclosing, on described 4 two opposing end surfaces of load steel plate
It is provided with the polarization copper sheet 5 for clamping piezoelectric membrane 7.
Positive outside wire 8 or negative outside wire 9 are provided on the opposite end face of the polarization copper sheet 5.
The polarization copper sheet 5 is connected with positive outside wire 8, negative outside wire 9 by pad 10, described and high direct voltage
The earth leakage protective device 12 of power supply 14 is connected.
The polarization copper sheet 5 independently forms circuit.
The clamping deckle board 3 in "] " font, 3 both side plate of clampings deckle board is with respect to presetting nut 2.
4 back of load steel plate is provided with fishbolt 1, and 1 external screw thread of fishbolt is meshed with nut 2.
The clamping deckle board 3 is formed using epoxy resin integral cast.
4 end face of load steel plate forms assembly die hole 11, and 5 back of polarization copper sheet forms connection mould column 6, the company
Mould column 6 is connect to be fixed in assembly die hole 11.
The assembly die hole 11 is hexagon, and 6 shape of connection mould column and assembly die hole 11 are adapted.
The polarization copper sheet 5 is formed with 6 formed by integrally casting of mould column is connect.
The fishbolt 1, nut 2 are steel.
The DC high-voltage power supply 14 polarizes to piezoelectric membrane 7 by the copper sheet 5 that polarizes.
The polarization copper sheet 5 is six, wherein three polarization copper sheets 5 are one group, is located at the two sides of piezoelectric membrane 7.
The course of work of the invention is as follows:
As shown in fig. 6, in the use of the present invention, piezoelectric membrane 7 is placed between two panels polarization copper sheet 5, by fishbolt 1
It tightens, the lead picked out is connected with the earth leakage protective device 12 of DC high-voltage power supply 14, which is placed on and fills silicone oil
In 13 container, silicone oil 13 is heated, when the temperature of silicone oil 13 reaches 90 DEG C, DC high-voltage power supply 14 is opened, starts
It polarizes to piezoelectric membrane 7.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Within mind and principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (1)
1. a kind of piezoelectric membrane polarization clamp of multichannel, including clamp deckle board (3), it is characterised in that: the clamping deckle board (3)
The load steel plate (4) for being provided with close to or away from and being parallel to each other in the space of enclosing, (4) two opposite ends of the load steel plate
The polarization copper sheet (5) for clamping piezoelectric membrane (7) is provided on face, the clamping deckle board (3) side is opened wide, and fixture, which is placed on, to be filled
In the container of silicone oil (13), the polarization copper sheet (5) back forms pad (10), the pad (10) and load steel plate
(4) it does not contact,
It is provided with positive outside wire (8) or negative outside wire (9) on the opposite end face of polarization copper sheet (5),
The polarization copper sheet (5) is connected with positive outside wire (8), negative outside wire (9) by pad (10), and the cathode draws
Outlet (9) is connected with the earth leakage protective device (12) of DC high-voltage power supply (14),
The clamping deckle board (3) in "] " font, clampings deckle board (3) both side plate with respect to presetting nut (2),
Load steel plate (4) back is provided with fishbolt (1), and fishbolt (1) external screw thread is mutually nibbled with nut (2)
It closes,
The clamping deckle board (3) is formed using epoxy resin integral cast,
The load steel plate (4) end face forms assembly die hole (11), and the polarization copper sheet (5) back forms connection mould column (6), institute
Connection mould column (6) is stated to be fixed in assembly die hole (11),
The assembly die hole (11) is hexagon, and connection mould column (6) shape and assembly die hole (11) are adapted,
The polarization copper sheet (5) forms with mould column (6) formed by integrally casting is connect.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611010427.5A CN106328804B (en) | 2016-11-17 | 2016-11-17 | The piezoelectric membrane polarization clamp of multichannel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611010427.5A CN106328804B (en) | 2016-11-17 | 2016-11-17 | The piezoelectric membrane polarization clamp of multichannel |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106328804A CN106328804A (en) | 2017-01-11 |
| CN106328804B true CN106328804B (en) | 2019-11-08 |
Family
ID=57817258
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611010427.5A Expired - Fee Related CN106328804B (en) | 2016-11-17 | 2016-11-17 | The piezoelectric membrane polarization clamp of multichannel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106328804B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109427958A (en) * | 2017-09-05 | 2019-03-05 | 王开安 | Membrane polarization bearing assembly and membrane polarization equipment |
| CN109494296B (en) * | 2017-09-12 | 2022-05-17 | 江西欧迈斯微电子有限公司 | Jig for polarization, polarization method of piezoelectric layer and preparation method of ultrasonic biological recognition device |
| CN111769071B (en) * | 2020-07-30 | 2024-04-05 | 浙江工业大学 | Polarization clamp for piezoelectric composite film material |
| TWI747556B (en) * | 2020-10-15 | 2021-11-21 | 馗鼎奈米科技股份有限公司 | Method for polarizing piezoelectric film |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203414560U (en) * | 2013-08-07 | 2014-01-29 | 四川省三台水晶电子有限公司 | Device detecting polarity of shearing sheet |
| CN203504696U (en) * | 2013-10-29 | 2014-03-26 | 广东省惠州市质量计量监督检测所 | Flat-panel television test fixture |
| CN105845820A (en) * | 2016-04-13 | 2016-08-10 | 盐城工学院 | Piezoelectric ceramics polarizing apparatus |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202063841U (en) * | 2011-06-02 | 2011-12-07 | 山东建筑大学 | Fixture for polarizing piezoelectric ceramic wafers |
| CN203690347U (en) * | 2014-01-29 | 2014-07-02 | 西安科技大学 | Piezoelectric material multidirectional polarization clamp |
| CN203721774U (en) * | 2014-03-18 | 2014-07-16 | 哈尔滨理工大学 | Dielectric/piezoelectric ceramic and thin film polarization device |
| CN205643936U (en) * | 2016-04-28 | 2016-10-12 | 山东量子科学技术研究院有限公司 | Periodic polarization anchor clamps of pneumatic type lithium niobate crystal |
| CN206460977U (en) * | 2016-11-17 | 2017-09-01 | 河北建筑工程学院 | A kind of piezoelectric membrane polarization clamp of multichannel |
-
2016
- 2016-11-17 CN CN201611010427.5A patent/CN106328804B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203414560U (en) * | 2013-08-07 | 2014-01-29 | 四川省三台水晶电子有限公司 | Device detecting polarity of shearing sheet |
| CN203504696U (en) * | 2013-10-29 | 2014-03-26 | 广东省惠州市质量计量监督检测所 | Flat-panel television test fixture |
| CN105845820A (en) * | 2016-04-13 | 2016-08-10 | 盐城工学院 | Piezoelectric ceramics polarizing apparatus |
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| Publication number | Publication date |
|---|---|
| CN106328804A (en) | 2017-01-11 |
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Granted publication date: 20191108 |