CN106941342A - A kind of controller for being integrated with charge amplifier - Google Patents
A kind of controller for being integrated with charge amplifier Download PDFInfo
- Publication number
- CN106941342A CN106941342A CN201710356364.7A CN201710356364A CN106941342A CN 106941342 A CN106941342 A CN 106941342A CN 201710356364 A CN201710356364 A CN 201710356364A CN 106941342 A CN106941342 A CN 106941342A
- Authority
- CN
- China
- Prior art keywords
- charge amplifier
- cabinet
- circuit board
- termination
- charge
- 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
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Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
- H03F3/70—Charge amplifiers
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
- Y02P90/02—Total factory control, e.g. smart factories, flexible manufacturing systems [FMS] or integrated manufacturing systems [IMS]
Abstract
The present invention relates to charge amplifier technical field, specifically related to a kind of controller for being integrated with charge amplifier, include cabinet and the delivery outlet for exporting electric signal, some charge amplifiers are provided with the cabinet, the charge amplifier includes input termination and output termination, the rear delivery outlet with the controller is attached between the output termination of the charge amplifier by the way of in parallel and/or series connection to be conductively connected, the input termination of the charge amplifier is located at outside the cabinet.It is to connect more efficient and convenient first for the controller of the application, more traditional connected mode, moreover, the circuit of charge amplifier can complete connection in series or in parallel, the convenient reliability for ensureing quality of connection in factory；Another further aspect, because the junction between each charge amplifier is located in cabinet, can play shielding action, effective to reduce the interference that charge amplifier is subject to.
Description
Technical field
The present invention relates to charge amplifier technical field, and in particular to a kind of controller for being integrated with charge amplifier.
Background technology
In current electronic technology field, charge amplifier is widely used, for example, in sensor technical field
In, it is necessary to be amplified using charge amplifier to signal.In actual use, inventor is had found, current electric charge is put
Big device also there are deficiency, be characterized in particular in：In current amplifying circuit, charge amplifier is generally using conductor wire and other yuan
Part is connected, and is adopted in such a way, not only wiring cumbersome, is additionally, since the difference of workman's qualification, wiring quality
Be difficult to obtain unified guarantee, be easy to because terminals connect it is unreliable and caused by use when signal interference, on the other hand, this
Be typically exposed at a little wiring it is outer, it is stronger by external electromagnetic interference, so also easily when in use, signal occur it is disturbed not
Stable case；Further, when needing to set multiple charge amplifiers in circuit, above-mentioned wiring difficulty and security risk
Just further increase, furthermore, it would be desirable to take larger installing space.
So, need to design a kind of convenient connection at present, it is ensured that the charge amplifier structure with excellent connection reliability.
The content of the invention
Present invention aims at there is the insecure problem of wiring for current charge amplifier there is provided one kind conveniently to connect
Connect, it is ensured that the charge amplifier structure with excellent connection reliability.
In order to achieve the above object, the invention provides following technical scheme：
A kind of controller for being integrated with charge amplifier, includes cabinet and the delivery outlet for exporting electric signal, the cabinet
Some charge amplifiers are inside provided with, the charge amplifier includes input termination and output termination, the charge amplifier
Output termination between be attached the rear delivery outlet with the controller by the way of in parallel and/or series connection and be conductively connected,
The input termination of the charge amplifier is located at outside the cabinet.
The controller of the application, some charge amplifiers are arranged in cabinet, using string between each charge amplifier
Connection or mode in parallel are connected, and are then connected again with the delivery outlet of controller, and the input termination of each charge amplifier position
In outside cabinet, in use, according to actual needs, the charge amplifier connection of respective numbers and corresponding connected mode is chosen
, it is to connect more efficient and convenient first for more traditional connected mode, moreover, the circuit of charge amplifier can be
Connection in series or in parallel, the convenient reliability for ensureing quality of connection are completed in factory；Another further aspect, due to each electricity
Junction between lotus amplifier is located in cabinet, can play shielding action, effective to reduce what charge amplifier was subject to
Interference.
It is preferred that, be provided with first circuit board in the cabinet, the charge amplifier respectively with the first circuit board
Connection, is realized in series or in parallel between charge amplifier.The connection between charge amplifier is realized by circuit board, enters one
The connection of the charge amplifier of step, also further ensures the reliability of connection.
It is preferred that, the controller also includes control unit, and the control unit is connected with the first circuit board, institute
Stating control unit is used to control the connection status between each charge amplifier.In this application, charge amplifier is connected to
On one circuit board, it is connected by control unit with first circuit board, and then each charge amplifier is controlled by control unit
Type of attachment, thus, a variety of amplification circuit structures are formed, it is further convenient for users, moreover, still further subtracting
Lack the connection and dismounting of circuit, further ensure the reliability of amplification circuit structure.
It is preferred that, the controller also includes control panel, and the control panel is connected with the control unit, described
Control panel is used to set and show the connection status between each charge amplifier.
It is preferred that, the control panel is liquid crystal control panels.
In this application, some charge amplifiers are integrated on first circuit board, then grasped by control panel
Control unit is controlled, the circuit connecting relation between each charge amplifier is controlled, i.e. in use, staff can be with
The circuit connecting relation between charge amplifier is controlled by control panel, and then obtains required charge amplifying circuit.
It is preferred that, socket, the electric charge amplification are additionally provided with the corresponding first circuit board of the charge amplifier
Device is plugged on each self-corresponding socket, and realization is conductively connected with the first circuit board.By setting socket, enter one
The connection for facilitating charge amplifier of step, also ensure that the unification of each charge amplifier quality of connection, further to improve
The stability of amplification circuit structure.
It is preferred that, set jagged on the corresponding cabinet of the charge amplifier, removably set on the breach
Shrouding is equipped with, the charge amplifier inputs and through hole is provided with the corresponding shrouding in termination, the charge amplifier input
Termination is stretched out outside the cabinet through the through hole.It is the company for facilitating charge amplifier first by setting breach and shrouding
Connect, while shielding action is also played, moreover, adopting in such a way so that the two ends of charge amplifier can be accessed can
By connection, so, it is also convenient for ensureing the structural stability of the application.
It is preferred that, the first circuit board has been spaced apart distance with the cabinet.It is the shielding effect for improving cabinet first
Really, while also reducing in transportation, the impact suffered by charge amplifier and first circuit board.
It is preferred that, the cabinet and shrouding are made using metal material.Improve the electromagnetic shielding capability of cabinet and shrouding.
It is preferred that, the charge amplifier also includes housing, and the housing two ends are separately provided for closed port
End plate, the second circuit board being connected with the input termination and output termination of the charge amplifier is provided with the housing,
Amplifying circuit is integrated with the second circuit board, the input termination and output termination are each passed through each self-corresponding end
Plate extend out to the hull outside.
Amplifying circuit is that amplifying circuit is played a good protection in housing, first, on the other hand simultaneously, housing
Shielding action can also be played, the interference outside further decrease improves amplification and the transmission quality of signal；Further,
Using the charge amplifier of said structure, also cause the easier for installation of charge amplifier.
It is preferred that, coordinate between the end plate and the housing for closing.What further raising amplifying circuit was shielded can
By property.
It is preferred that, the housing sidewall is provided with some grooves.By setting groove, be conducive to the radiating of housing, moreover,
Housing sidewall sets groove, forms irregular face, also helps the interference signals such as the outside electromagnetic wave of reflection, further raising
The shield effectiveness of the application housing, and then further improve signal amplification and the transmission quality of the application charge amplifier.
It is preferred that, it is provided with projection on the side wall of the output termination, is provided with the corresponding socket of the projection
The breach being engaged with the projection.By setting raised and breach, the installation of charge amplifier is further facilitated, also further
Improve charge amplifier installation reliability.
It is preferred that, the raised one end arc structure for deviating from the end plate.It is arranged such, convenient output termination is reliable
Insert in socket.
It is preferred that, the housing and end plate are made using metal material.The further screening energy for improving housing and end plate
Power.
It is preferred that, led between each output termination and the second circuit board by setting some wires to realize
It is spaced apart between electrical connection, adjacent wires.
It is preferred that, the distance spaced apart of the adjacent wires of the same output termination is identical.In signals transmission
In, can also have certain influence between adjacent wires, in this application, adjacent wires it is spaced apart identical so that, each
Wire is affected degree and more unified, thus, the stability of signal transmission is further improved, the amplification letter conveniently stablized
Number.
It is preferred that, the wire is penetrated by the side of the second circuit board, and from the opposite side of the second circuit board
Pass, form hanging section.It is the reliability that ensure that connection first using aforesaid way, meanwhile, the setting of hanging section also makes
Hanging section has good heat-sinking capability, improves the heat dispersion of the application charge amplifier.
It is preferred that, the hanging section and the inwall of the housing of the wire are spaced apart.It is further to reduce inside wire
The risk that electric signal is affected.
Beneficial effects of the present invention are：
The controller of the application, some charge amplifiers are arranged in cabinet, between each charge amplifier using series connection or
Person's mode in parallel is connected, and is then connected again with the delivery outlet of controller, and the input termination of each charge amplifier is located at cabinet
In vitro, in use, according to actual needs, the charge amplifier of selection respective numbers and corresponding connected mode, which is connected, is
Can, it is to connect more efficient and convenient first for more traditional connected mode, moreover, the circuit of charge amplifier can be in life
Produce and connection in series or in parallel is completed in factory building, the convenient reliability for ensureing quality of connection；Another further aspect, due to each electric charge
Junction between amplifier is located in cabinet, can play shielding action, and it is dry that effective reduction charge amplifier is subject to
Disturb.
Brief description of the drawings：
Fig. 1 is the structural representation of controller；
Fig. 2 is structural representation when controller removes part cabinet；
Fig. 3 is the structural representation that socket is set on first circuit board；
Fig. 4 is the structural representation of charge amplifier；
Fig. 5 is structural representation when charge amplifier removes partial shell,
Marked in figure：1- cabinets, 2- delivery outlets, 3- charge amplifiers, 4- inputs termination, 5- outputs termination, 6- first circuit boards,
7- control units, 8- sockets, 9- shroudings, 10- housings, 11- end plates, 12- second circuit boards, 13- grooves, 14- wires, 15- is convex
Rise, 16- control panels.
Embodiment
In order to make the purpose , technical scheme and advantage of the present invention be clearer, it is right below in conjunction with drawings and Examples
The present invention is further elaborated.It should be appreciated that specific embodiment described herein is only to explain the present invention, not
For limiting the present invention.
Embodiment, as Figure 1-5：
A kind of controller for being integrated with charge amplifier, includes cabinet 1 and the delivery outlet 2 for exporting electric signal, the cabinet
Some charge amplifiers 3 are provided with body 1, the charge amplifier 3 includes input termination 4 and output termination 5, the electric charge
Between the output termination 5 of amplifier 3 rear and controller delivery outlet 2 is attached by the way of in parallel and/or series connection
It is conductively connected, the input termination 4 of the charge amplifier 3 is located at outside the cabinet 1.
The controller of the application, some charge amplifiers 3 are arranged in cabinet 1, are used between each charge amplifier 3
Mode in series or in parallel is connected, and is then connected again with the delivery outlet 2 of controller, and the input of each charge amplifier 3
First 4 are located at outside cabinet 1, in use, according to actual needs, choose the electric charge amplification of respective numbers and corresponding connected mode
Device 3 is connected, and is to connect more efficient and convenient first, moreover, the electricity of charge amplifier 3 for more traditional connected mode
Road can complete connection in series or in parallel, the convenient reliability for ensureing quality of connection in factory；Another further aspect, by
Junction between each charge amplifier 3 is located in cabinet 1, can play shielding action, and the effective electric charge that reduces is put
The interference that big device 3 is subject to.
As one of which embodiment, first circuit board 6 is provided with the cabinet 1, the charge amplifier 3 is distinguished
It is connected, realizes in series or in parallel between charge amplifier 3 with the first circuit board 6.Realize that electric charge is put by circuit board
Connection between big device 3, the connection of further charge amplifier 3 also further ensures the reliability of connection.
As one of which embodiment, the controller also includes control unit 7, the control unit 7 with it is described
First circuit board 6 is connected, and the control unit 7 is used to control the connection status between each charge amplifier 3.In the application
In, charge amplifier 3 is connected on first circuit board 6, is connected by control unit 7 with first circuit board 6, and then passes through control
Part 7 controls the type of attachment of each charge amplifier 3, thus, forming a variety of amplification circuit structures, further facilitates use
Family is used, moreover, still further reducing the connection and dismounting of circuit, further ensures the reliability of amplification circuit structure
Property.
It is preferred that, the controller also includes control panel 16, and the control panel 16 connects with the control unit 7
Connect, the control panel 16 is used to set and show the connection status between each charge amplifier 3.
It is preferred that, the control panel 16 is liquid crystal control panels.
In this application, some charge amplifiers 7 are integrated on first circuit board 6, then pass through control panel 16
To manipulate control unit 7, the circuit connecting relation between each charge amplifier is controlled, i.e. in use, staff
The circuit connecting relation between charge amplifier 7 can be controlled by control panel 16, and then obtains required electric charge amplification
Circuit.
As one of which embodiment, it is additionally provided with the corresponding first circuit board 6 of the charge amplifier 3 slotting
Seat 8, the charge amplifier 3 is plugged on each self-corresponding socket 8, is realized and is connected with the conductive of the first circuit board 6
Connect.By setting socket 8, the connection of charge amplifier 3 is further facilitated, also ensure that each charge amplifier 3 is connected
The unification of quality, further improves the stability of amplification circuit structure.
As one of which embodiment, set jagged on the corresponding cabinet 1 of the charge amplifier 3, it is described
It is dismountable on breach to be provided with shrouding 9, it is provided with the corresponding shrouding 9 in the input of charge amplifier 3 termination 4 logical
Hole, the input termination 4 of charge amplifier 3 is stretched out outside the cabinet 1 through the through hole.By setting breach and shrouding 9,
It is the connection for facilitating charge amplifier 3 first, while shielding action is also played, moreover, adopting in such a way so that electric charge
The two ends of amplifier 3 can access and be reliably connected, so, it is also convenient for ensureing the structural stability of the application.
As one of which embodiment, the first circuit board 6 has been spaced apart distance with the cabinet 1.It is first
The shield effectiveness of cabinet 1 is improved, while also reducing in transportation, rushing suffered by charge amplifier 3 and first circuit board 6
Hit.
As one of which embodiment, the cabinet 1 and shrouding 9 are made using metal material.Improve cabinet 1 and shrouding
9 electromagnetic shielding capability.
As one of which embodiment, the charge amplifier 3 also includes housing 10, the two ends of housing 10 difference
It is provided with and is provided with the end plate 11 for closed port, the housing 10 and the input termination 4 of the charge amplifier 3 and defeated
Go out the second circuit board 12 of the connection of termination 5, be integrated with amplifying circuit on the second circuit board 12, the input termination 4 and defeated
Go out termination 5 and be each passed through each self-corresponding end plate 11 to extend out to outside the housing 10.
Amplifying circuit is that amplifying circuit is played a good protection in housing 10, first, on the other hand simultaneously, shell
Body 10 can also play shielding action, the interference outside further decrease, improve amplification and the transmission quality of signal；Further
, using the charge amplifier 3 of said structure, also cause the easier for installation of charge amplifier 3.
As one of which embodiment, coordinate between the end plate 11 and the housing 10 for closing.Further improve
The reliability that amplifying circuit is shielded.
As one of which embodiment, the side wall of housing 10 is provided with some grooves 13.By setting groove 13, have
Beneficial to the radiating of housing 10, moreover, the side wall of housing 10 sets groove 13, irregular face is formed, the electricity outside reflection is also helped
The interference signals such as magnetic wave, further improve the shield effectiveness of the application housing 10, and then further improve the application electric charge
The signal amplification of amplifier 3 and transmission quality.
As one of which embodiment, projection 15, raised 15 correspondence are provided with the side wall of the output termination 5
The socket 8 on be provided with and raised 15 breach being engaged.By setting projection 15 and breach, electricity is further facilitated
The installation of lotus amplifier 3, also further improves the reliability of the installation of charge amplifier 3.
Deviate from one end arc structure of the end plate 11 as one of which embodiment, described raised 15.It is arranged such,
Convenient output termination 5 is reliably in insertion socket 8.
As one of which embodiment, the housing 10 and end plate 11 are made using metal material.It is further to improve
The screening ability of housing 10 and end plate 11.
As one of which embodiment, pass through between each described output termination 5 and the second circuit board 12
Set some wires 14 to realize to be conductively connected, be spaced apart between adjacent wires 14.
As one of which embodiment, the distance phase spaced apart of the adjacent wires 14 of the same output termination 5
Together.In signals transmission, can also there is certain influence between adjacent wires 14, in this application, between adjacent wires 14
It is identical separated by a distance so that, each wire 14 is affected degree and more unified, thus, further improving the stabilization of signal transmission
Property, the amplification signal conveniently stablized.
As one of which embodiment, the wire 14 is penetrated by the side of the second circuit board 12, and from described
The opposite side of second circuit board 12 is passed, and forms hanging section.It is the reliability that ensure that connection first, together using aforesaid way
When, the setting of hanging section also makes hanging section have good heat-sinking capability, improves the heat dispersion of the application charge amplifier 3.
As one of which embodiment, the hanging section of the wire 14 and the inwall of the housing 10 are spaced apart.Enter
The risk that the inside electric signal of reduction wire 14 of one step is affected.
Any modification, equivalent and improvement for being made within the spirit and principles of the invention etc., should be included in
Within protection scope of the present invention.
Claims (10)
1. a kind of controller for being integrated with charge amplifier, it is characterised in that：Include cabinet and for exporting the defeated of electric signal
Some charge amplifiers are provided with outlet, the cabinet, the charge amplifier includes input termination and output termination, institute
State between the output termination of charge amplifier be attached by the way of in parallel and/or series connection it is rear with controller output
Mouth is conductively connected, and the input termination of the charge amplifier is located at outside the cabinet.
2. controller according to claim 1, it is characterised in that：First circuit board, the electricity are provided with the cabinet
Lotus amplifier is connected with the first circuit board respectively, is realized in series or in parallel between charge amplifier.
3. controller according to claim 2, it is characterised in that：Also include control unit, the control unit and institute
First circuit board connection is stated, the control unit is used to control the connection status between each charge amplifier.
4. controller according to claim 3, it is characterised in that：The corresponding first circuit board of the charge amplifier
On be additionally provided with socket, the charge amplifier is plugged on each self-corresponding socket, realize with the first circuit board
Be conductively connected.
5. controller according to claim 4, it is characterised in that：Set on the corresponding cabinet of the charge amplifier
Jagged, dismountable on the breach to be provided with shrouding, the charge amplifier is inputted to be set on the corresponding shrouding in termination
Through hole is equipped with, the charge amplifier input termination is stretched out outside the cabinet through the through hole.
6. controller according to claim 2, it is characterised in that：The first circuit board has been spaced apart with the cabinet
Distance.
7. controller according to claim 4, it is characterised in that：The cabinet and shrouding are made using metal material.
8. the controller according to claim 2-7 any one, it is characterised in that：The charge amplifier also includes shell
Body, the housing two ends are separately provided for being provided with and the charge amplifier in the end plate of closed port, the housing
Input termination and the connection of output termination second circuit board, be integrated with amplifying circuit, the input on the second circuit board
Termination and output termination are each passed through each self-corresponding end plate and extend out to the hull outside.
9. controller according to claim 8, it is characterised in that：Coordinate between the end plate and the housing for closing.
10. controller according to claim 9, it is characterised in that：The housing sidewall is provided with some grooves.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710356364.7A CN106941342B (en) | 2017-05-17 | 2017-05-17 | Controller integrated with charge amplifier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710356364.7A CN106941342B (en) | 2017-05-17 | 2017-05-17 | Controller integrated with charge amplifier |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106941342A true CN106941342A (en) | 2017-07-11 |
| CN106941342B CN106941342B (en) | 2023-06-20 |
Family
ID=59465048
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710356364.7A Active CN106941342B (en) | 2017-05-17 | 2017-05-17 | Controller integrated with charge amplifier |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106941342B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113054935A (en) * | 2021-03-19 | 2021-06-29 | 广州佐峰电子科技有限公司 | Card-inserting type charge amplifier capable of being combined and expanded at will |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3900743A (en) * | 1972-09-25 | 1975-08-19 | Rca Corp | Charge amplifier |
| CN101114817A (en) * | 2007-08-21 | 2008-01-30 | 杭州亿恒科技有限公司 | Digital type charge amplifier |
| CN102818687A (en) * | 2012-07-25 | 2012-12-12 | 北京卫星环境工程研究所 | Dynamic force signal processing system used for force limit control vibration test of aircraft |
| CN103281042A (en) * | 2013-05-16 | 2013-09-04 | 成都凯天电子股份有限公司 | Remote transmission IEPE type charge amplifier |
| CN205142148U (en) * | 2015-12-01 | 2016-04-06 | 东莞市剀昊电子有限公司 | Eight interface charge amplifier |
| CN206712754U (en) * | 2017-05-17 | 2017-12-05 | 四川兴达明科机电工程有限公司 | A kind of controller for being integrated with charge amplifier |
-
2017
- 2017-05-17 CN CN201710356364.7A patent/CN106941342B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3900743A (en) * | 1972-09-25 | 1975-08-19 | Rca Corp | Charge amplifier |
| CN101114817A (en) * | 2007-08-21 | 2008-01-30 | 杭州亿恒科技有限公司 | Digital type charge amplifier |
| CN102818687A (en) * | 2012-07-25 | 2012-12-12 | 北京卫星环境工程研究所 | Dynamic force signal processing system used for force limit control vibration test of aircraft |
| CN103281042A (en) * | 2013-05-16 | 2013-09-04 | 成都凯天电子股份有限公司 | Remote transmission IEPE type charge amplifier |
| CN205142148U (en) * | 2015-12-01 | 2016-04-06 | 东莞市剀昊电子有限公司 | Eight interface charge amplifier |
| CN206712754U (en) * | 2017-05-17 | 2017-12-05 | 四川兴达明科机电工程有限公司 | A kind of controller for being integrated with charge amplifier |
Non-Patent Citations (2)
| Title |
|---|
| DON HARTILL等: "An InSb charge amplifier for use in a spectrometer array", 《APPLIED OPTICS》, vol. 25, no. 10, pages 1701 - 1706 * |
| 彭俊华 等: "基于ARM的多通道电荷放大器的设计与测试", 《压电与声光》, vol. 39, no. 2, pages 211 - 215 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113054935A (en) * | 2021-03-19 | 2021-06-29 | 广州佐峰电子科技有限公司 | Card-inserting type charge amplifier capable of being combined and expanded at will |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106941342B (en) | 2023-06-20 |
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