CN107860304A - The thickness detection apparatus of film - Google Patents
The thickness detection apparatus of film Download PDFInfo
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- CN107860304A CN107860304A CN201711003534.XA CN201711003534A CN107860304A CN 107860304 A CN107860304 A CN 107860304A CN 201711003534 A CN201711003534 A CN 201711003534A CN 107860304 A CN107860304 A CN 107860304A
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- 238000001514 detection method Methods 0.000 title claims abstract description 133
- 230000006698 induction Effects 0.000 claims description 8
- 239000002390 adhesive tape Substances 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 description 12
- 230000008859 change Effects 0.000 description 11
- 239000004020 conductor Substances 0.000 description 5
- 239000000463 material Substances 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 240000002853 Nelumbo nucifera Species 0.000 description 2
- 235000006508 Nelumbo nucifera Nutrition 0.000 description 2
- 235000006510 Nelumbo pentapetala Nutrition 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 230000035945 sensitivity Effects 0.000 description 2
- 239000012491 analyte Substances 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 238000007650 screen-printing Methods 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 238000004544 sputter deposition Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B7/00—Measuring arrangements characterised by the use of electric or magnetic techniques
- G01B7/02—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring length, width or thickness
- G01B7/06—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring length, width or thickness for measuring thickness
-
- G—PHYSICS
- G07—CHECKING-DEVICES
- G07D—HANDLING OF COINS OR VALUABLE PAPERS, e.g. TESTING, SORTING BY DENOMINATIONS, COUNTING, DISPENSING, CHANGING OR DEPOSITING
- G07D7/00—Testing specially adapted to determine the identity or genuineness of valuable papers or for segregating those which are unacceptable, e.g. banknotes that are alien to a currency
- G07D7/16—Testing the dimensions
- G07D7/164—Thickness
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
Abstract
This application provides a kind of thickness detection apparatus of film.The thickness detection apparatus of the film includes：Common electrode unit, including common electrode and the first protection board for being arranged on common electrode side；Detect electrode unit; energization pole unit is relative in a first direction together and is arranged at intervals; detecting electrode unit includes detection electrode, conductive layer and the second protection board; second protection board is arranged on the side of the close common electrode unit of detection electrode; conductive layer is arranged on the surface of the second protection board; the interval of first protection board and the second protection board in a first direction forms the sense channel of determinand; or first protection board and the interval of conductive layer in a first direction form sense channel, first direction is parallel with the thickness direction of the first protection board and the second protection board.Conductive layer can be with electrostatic charge caused by shielded film and the friction of the first protection board and the second protection board, and can also shield bank note entrained electrostatic charge in itself, improves the accuracy of detection.
Description
Technical field
The application is related to detection field, in particular to a kind of thickness detection apparatus of film.
Background technology
At present, the thickness detection apparatus of disclosed more advanced bank note is as shown in figure 1, the thickness detection apparatus is using quiet
The principle of electric charge induction detects banknote thickness.The detection means mainly includes common electrode 13 ', common electrode transparent panel
14 ', electrode 23 ' and detection electrode transparent panel 24 ' are detected.Wherein, common electrode transparent panel 14 ' is arranged on common electrode 13 '
Close detection electrode 23 ' surface on, detection electrode transparent panel 24 ' is arranged on the close common electrode 13 ' of detection electrode 23 '
Surface on, the interval between detection electrode transparent panel 24 ' and common electrode transparent panel 14 ' forms the sense channel of determinand
(also referred to as movable passageway).Common electrode transparent panel 14 ' is used for protecting common electrode 13 ', and detection electrode transparent panel 24 ' is used for protecting
Detect electrode 23 '.
When above-mentioned thickness detection apparatus works, apply pulse signal on common electrode 13 ', detect on electrode 23 ' just
Voltage signal can be induced, when bank note to be detected from detection electrode 23 ' top by when, detect voltage on electrode 23 ' just
Can change, the change size of voltage with it is relevant by the property and thickness of object, and then can be with according to the size of voltage
The thickness of determinand is obtained, can also judge whether the thickness of determinand is abnormal, and whether its surface has foreign matter, defect or folding
It is folded.
There are the following problems for above-mentioned thickness detection apparatus：When bank note passes through thickness detection apparatus, bank note can with it is common
Electrode transparent panel 14 ' and detection electrode transparent panel 24 ' rub, and so as to produce substantial amounts of electrostatic charge, while bank note is in itself
A certain amount of electrostatic charge can be carried, these electrostatic charges can interfere to the voltage change on detection electrode 23 ', so as to have impact on
The accuracy that thickness detection apparatus detects to banknote thickness.
The content of the invention
The main purpose of the application is to provide a kind of thickness detection apparatus of film, to solve film in the prior art
The problem of thickness detection apparatus detection is inaccurate.
To achieve these goals, this application provides a kind of thickness detection apparatus of film, the Thickness sensitivity of the film
Device includes：Common electrode unit, including common electrode and the first protection board for being arranged on above-mentioned common electrode side；Detection
Electrode unit, and interval setting, above-mentioned detection electrode unit relative in a first direction with above-mentioned common electrode unit include detection
Electrode, conductive layer and the second protection board, above-mentioned second protection board are arranged on the close above-mentioned common electrode list of above-mentioned detection electrode
The side of member, above-mentioned conductive layer are arranged on the surface of above-mentioned second protection board, above-mentioned first protection board and the above-mentioned second protection
Interval of the plate on above-mentioned first direction forms the sense channel of determinand, or above-mentioned first protection board exists with above-mentioned conductive layer
Interval on above-mentioned first direction forms above-mentioned sense channel, above-mentioned first direction and above-mentioned first protection board and above-mentioned second
The thickness direction of protection board is parallel.
Further, above-mentioned conductive layer is arranged on the surface of close above-mentioned detection electrode of above-mentioned second protection board.
Further, above-mentioned conductive layer includes ITO layer, conductive tape and/or conductive ink layer.
Further, the thickness of above-mentioned conductive layer is more than or equal to 5 μm.
Further, above-mentioned thickness detection apparatus includes multiple above-mentioned detection electrodes, and above-mentioned thickness detection apparatus also includes
Electrostatic induction chip, above-mentioned electrostatic induction chip include multiple above-mentioned detection electrodes.
Further, above-mentioned common electrode unit also includes：First framework, form first with above-mentioned first protection board and accommodate
Space, above-mentioned common electrode are arranged in above-mentioned first receiving space.
Further, above-mentioned common electrode unit also includes：First line plate, it is arranged in above-mentioned first receiving space,
And above-mentioned common electrode is arranged on the surface of close above-mentioned first protection board of above-mentioned first line plate.
Further, above-mentioned detection electrode unit also includes：Second framework, form second with above-mentioned second protection board and accommodate
Space, above-mentioned detection electrode are arranged in above-mentioned second receiving space；Second wiring board, it is arranged on above-mentioned second receiving space
In, and above-mentioned detection electrode is arranged on the surface of close above-mentioned second protection board of above-mentioned second wiring board.
Further, above-mentioned thickness detection apparatus also includes：Detection unit, it is arranged on the remote upper of above-mentioned second wiring board
On the surface for stating detection electrode, above-mentioned detection unit includes the detecting circuit electrically connected with above-mentioned detection electrode unit.
Further, above-mentioned first protection board and/or above-mentioned second protection board are transparent panel.
Using the technical scheme of the application, in the thickness detection apparatus of film, at least one table of the second protection board
Conductive layer is set on face, and the conductive layer can be protected when effectively shielded film passes through thickness detection apparatus with the first protection board and second
Electrostatic charge caused by backplate friction, and bank note entrained electrostatic charge in itself can also be shielded, so as to alleviate these electrostatic charges
The interference to caused by detecting the voltage change of electrode, improve the accuracy of detection signal so that thickness detection apparatus can have
Effect detects to the thickness information of bank note exactly.Also, the structure of this thickness detection apparatus is simply effective, it is not necessary to volume
Outer increase electrostatic screen device, its production process is simple and easy, and production cost is low, and fabrication cycle is short, is suitable for high-volume and makes
Production, minimized simultaneously for finance device complete machine and reduce finance device price of complete machine highly significant.
Brief description of the drawings
The Figure of description for forming the part of the application is used for providing further understanding of the present application, and the application's shows
Meaning property embodiment and its illustrate be used for explain the application, do not form the improper restriction to the application.In the accompanying drawings：
Fig. 1 shows a kind of partial structural diagram of the thickness detection apparatus of film of the prior art；
Fig. 2 shows the structural representation for the thickness detection apparatus that a kind of embodiment of the application provides；And
Fig. 3 shows the partial structural diagram of the thickness detection apparatus in another embodiment of the application.
Wherein, above-mentioned accompanying drawing marks including the following drawings：
13 ', common electrode；14 ', common electrode transparent panel；23 ', electrode is detected；24 ', electrode transparent panel is detected；
10th, common electrode unit；11st, the first framework；12nd, first line plate；13rd, common electrode；14th, the first protection board；
20th, electrode unit is detected；21st, second framework；22nd, the second wiring board；23rd, electrode is detected；24th, the second protection board；25th, it is conductive
Layer；30th, detection unit.
Embodiment
It is noted that described further below is all exemplary, it is intended to provides further instruction to the application.It is unless another
Indicate, all technologies used herein and scientific terminology are with usual with the application person of an ordinary skill in the technical field
The identical meanings of understanding.
It should be noted that term used herein above is merely to describe embodiment, and be not intended to restricted root
According to the illustrative embodiments of the application.As used herein, unless the context clearly indicates otherwise, otherwise singulative
It is also intended to include plural form, additionally, it should be understood that, when in this manual using term "comprising" and/or " bag
Include " when, it indicates existing characteristics, step, operation, device, component and/or combinations thereof.
It should be understood that when element (such as layer, film, region or substrate) be described as another element " on " when, this yuan
Part can be directly on another element, or intermediary element also may be present.Moreover, in specification and following claims
In, when description has element " connected " to another element, the element " can be directly connected to " to another element, or passes through the 3rd
Element " electrical connection " is to another element.
As background technology is introduced, the thickness detection apparatus of film of the prior art is treated during detection
When survey thing passes through sense channel, friction easily occurs with protection board and produces electrostatic, and determinand also easily produces electrostatic, these
Electrostatic can have an impact to the size for the induced voltage for detecting electrode, i.e., these electrostatic can cause the testing result of the detection means
Inaccuracy, in order to solve technical problem as above, present applicant proposes a kind of thickness detection apparatus of film.
In a kind of typical embodiment of the application, there is provided a kind of thickness detection apparatus of film, as shown in Fig. 2
The thickness detection apparatus includes common electrode unit 10 and detection electrode unit 20, wherein, common electrode unit 10 includes common
Electrode 13 and the first protection board 14 for being arranged on the above-mentioned side of common electrode 13；Detect electrode unit 20 and above-mentioned common electrode
Unit 10 is relative in a first direction and is arranged at intervals, and above-mentioned detection electrode unit 20 includes detection electrode 23, conductive layer 25 and the
Two protection boards 24, above-mentioned second protection board 24 are arranged on the one of the close above-mentioned common electrode unit 10 of above-mentioned detection electrode 23
Side, above-mentioned conductive layer 25 are arranged on the surface of above-mentioned second protection board 24, above-mentioned first protection board 14 and the above-mentioned second protection
Interval of the plate 24 on above-mentioned first direction forms the sense channel of determinand, or above-mentioned first protection board 14 and above-mentioned conduction
25 interval on above-mentioned first direction of layer forms above-mentioned sense channel, above-mentioned first direction and above-mentioned first protection board 14 and
The thickness direction of above-mentioned second protection board 24 is parallel.Above-mentioned " conductive layer 25 is arranged on the surface of above-mentioned second protection board 24 " wraps
A variety of situations are included, specifically, conductive layer can be positioned only on the surface of the close detection electrode of the second protection board (such as Fig. 2 institutes
Show), it can also be positioned only on the surface of remote detection electrode of the second protection board, the second protection board can also be set simultaneously
On the surface of detection electrode and on the surface away from detection electrode.In addition, conductive layer can be completely covered side or
The form of both side surface is arranged on the second protection board, can also only cover a part for a side surface or both side surface, Fig. 3
In, conductive layer cover only the part of a side surface of the close detection electrode of the second protection board.Those skilled in the art can be with
Conductive layer is arranged on the suitable position on the suitable surface of the second protection board according to actual conditions.
Sense channel is used for movement during analyte detection to be measured.When conductive layer is positioned only at the close detection electricity of the second protection board
When on the surface of pole, the interval between the second protection board and the first protection board forms the sense channel of determinand；When conductive layer
It is arranged on the surface of the remote detection electrode of the second protection board or is arranged far from detecting the surface of electrode simultaneously and leans on
When on the surface of nearly detection electrode, the interval between the first protection board and conductive layer forms the sense channel of determinand.
In the thickness detection apparatus of above-mentioned film, conductive layer is set at least one surface of the second protection board, should
Conductive layer can when effectively shielded film passes through thickness detection apparatus with the first protection board and the friction of the second protection board caused by it is quiet
Electric charge, and can also shielded film entrained electrostatic charge in itself, so as to alleviate these electrostatic charges to detecting the voltage of electrode
Interference caused by change, improve the accuracy of detection signal so that thickness detection apparatus can be effectively and accurately to film
Thickness information is detected.It is also, this simple in construction effective, it is not necessary to extra increase electrostatic screen device, its production process
Simple and easy, production cost is low, and fabrication cycle is short, is suitable for high-volume and makes production, small-sized simultaneously for finance device complete machine
Change and reduce finance device price of complete machine highly significant.
In order to avoid abrasion of the determinand when sense channel moves to conductive layer, ensure that shielding of the conductive layer to electrostatic is made
With in a kind of embodiment of the application, as shown in Fig. 2 above-mentioned conductive layer 25 is arranged on the close upper of above-mentioned second protection board 24
On the surface for stating detection electrode 23.
The conductive layer of the application can be that any electrically conductive material of the prior art is formed, people in the art
Member can form the conductive layer of the application according to the suitable conductive material of actual conditions selection.
In order to be further ensured that the conductive layer has appropriate conductance, and then it can preferably shield and will additionally produce
Electrostatic, while do not influence the normal induction voltage of detecting electrode also, in a kind of embodiment of the application, above-mentioned conductive layer 25 wraps
ITO layer, conductive tape and/or conductive ink layer are included, wherein conductive ink layer can be black ink layer.
The making of above-mentioned conductive layer can select according to actual conditions, and ratio says specific material to select.When above-mentioned
Conductive layer when being ITO layer, can be produced on by modes such as vacuum sputtering or high temperature sinterings on the second protection board.Work as conductive layer
25 when being conductive ink layer, can be produced on by modes such as silk-screen printing or sprayings on the second protection board 24.
In addition, when different films or identical films pass through the film thickness detection means of the present invention at different rates, rub
Electrostatic charge caused by wiping can be different, and this just needs conductive material that there is different conductances to correspond to therewith, effectively to shield electrostatic
Interference of the lotus to film thickness information detection signal, thickness detection apparatus of the invention can realize conduction material by the following method
The difference of matter conductance：When conductive layer is conductive ink layer, by changing conductive materials and electron opaque material in conductive ink layer
Proportioning realize the difference of conductive ink layer conductance；, can be by changing the conduction in ITO layer when conductive layer is ITO layer
The percentage of material realizes the difference of ITO layer conductance.This method is realized simply, and can realize the conductance of conductive layer
The intense adjustment of change, the interference for shielding extraneous static lotus, the quality for improving film thickness information detection signal have side very much
Help.
The thickness of above-mentioned conductive layer can be set according to actual conditions, for example be set according to the conductance of conductive material
It can be selected conductive layer being arranged to suitable thickness according to actual conditions Deng, those skilled in the art.
It is above-mentioned to lead in a kind of embodiment of the application in order to be further ensured that the conductive layer can preferably shield electrostatic
The thickness of electric layer 25 is more than or equal to 5 μm.
In order to improve the resolution ratio of detection means and integrated level, and allow the detection means resolution ratio more
Neatly adjust, meanwhile, facilitate the making of detection means, in a kind of embodiment of the application, above-mentioned thickness detection apparatus includes
Electrostatic induction chip, electrostatic induction chip include multiple state and detect electrode 23 to provide multiple detection electrodes.
In order to improve the service life of the thickness detection apparatus and fastness etc., in a kind of embodiment of the application, such as
Shown in Fig. 2, above-mentioned common electrode unit 10 also includes the first framework 11, and the first framework 11 and above-mentioned first protection board 14 form the
One receiving space, above-mentioned common electrode 13 are arranged in above-mentioned first receiving space.
In another embodiment of the application, as shown in Fig. 2 above-mentioned common electrode unit 10 also includes first line plate
12, first line plate 12 is arranged in above-mentioned first receiving space, and above-mentioned common electrode 13 is arranged on above-mentioned first line plate
On the surface of 12 close above-mentioned first protection board 14.
In the another embodiment of the application, as shown in Fig. 2 above-mentioned detection electrode unit 20 also includes second framework 21,
Second framework 21 forms the second receiving space with above-mentioned second protection board 24, and above-mentioned detection electrode 23 is arranged on above-mentioned second and accommodated
In space.The second receiving space that second framework is formed with the second protection board can protect detection electrode well, prevent its quilt
Abrasion etc., also, this sound construction, reliability are higher.
In another embodiment of the application, above-mentioned detection electrode unit 20 also includes the second wiring board 22 and detection unit
30, the second wiring board 22 is arranged in above-mentioned second receiving space, and above-mentioned detection electrode 23 is arranged on above-mentioned second wiring board
On the surface of 22 close above-mentioned second protection board 24；Detection unit 30 is arranged on the remote above-mentioned inspection of above-mentioned second wiring board 22
Go out on the surface of electrode 23, above-mentioned detection unit 30 includes the detecting circuit electrically connected with above-mentioned detection electrode unit 20.Using
When the thickness detection apparatus detects film thickness, apply certain pulse signal, the detection electrode on opposite on common electrode 13
Certain voltage signal will be induced on 23, when determinand from sense channel by when, detect electrode 23 on voltage signal
Can change, the change size of voltage with it is relevant by the property and thickness of object, due to detecting circuit with detection electrode
Unit 20 electrically connects, and the voltage change of acquisition can be transformed into the thickness of film to be detected by the circuit structure of detecting circuit
Degree, therefore detection unit 30 is capable of detecting when the thickness of the film, and then show whether the thickness of film is abnormal, and its surface is whether
There are foreign matter, defect or folding.
The first protection board and the second protection board of the application can be of the prior art any not on detection signal influence
Insulation board, those skilled in the art can according to actual conditions select suitable material insulation board.Specifically, it can be
It is bright or opaque.
In the another embodiment of the application, above-mentioned first protection board 14 and/or above-mentioned second protection board 24 are transparent panel.
Such as can be glass plate or resin plate, glass cost is relatively low, hardness is larger and insulating properties are preferable so that the Thickness sensitivity fills
Put with relatively low cost.
The determinand film of the application can be any laminar article of the prior art, such as common bank note
Deng.
As can be seen from the above description, the application the above embodiments realize following technique effect：
In the thickness detection apparatus of the film of the application, conductive layer is set at least one surface of the second protection board,
The conductive layer can when effectively shielded film passes through thickness detection apparatus with the first protection board and the friction of the second protection board caused by
Electrostatic charge, and can also shielded film entrained electrostatic charge in itself, so as to alleviate these electrostatic charges to detecting the electricity of electrode
Interference caused by buckling, improve the accuracy of detection signal so that thickness detection apparatus can be effectively and accurately to film
Thickness information detected.Also, the structure of this thickness detection apparatus is simply effective, it is not necessary to additionally increases electrostatic screen
Device, its production process is simple and easy, and production cost is low, and fabrication cycle is short, is suitable for high-volume and makes production, simultaneously for gold
Melt the miniaturization of equipment complete machine and reduce finance device price of complete machine highly significant.
The preferred embodiment of the application is the foregoing is only, is not limited to the application, for the skill of this area
For art personnel, the application can have various modifications and variations.It is all within spirit herein and principle, made any repair
Change, equivalent substitution, improvement etc., should be included within the protection domain of the application.
Claims (10)
1. a kind of thickness detection apparatus of film, it is characterised in that the thickness detection apparatus includes：
Common electrode unit (10), including common electrode (13) and the first protection for being arranged on the common electrode (13) side
Plate (14)；And
Electrode unit (20) is detected, and interval setting relative in a first direction with the common electrode unit (10), the detection
Electrode unit (20) includes detection electrode (23), conductive layer (25) and the second protection board (24), second protection board (24) and set
Put and be arranged on described in the side of the close common electrode unit (10) of the detection electrode (23), the conductive layer (25)
On the surface of second protection board (24), first protection board (14) and second protection board (24) are in said first direction
Interval form the sense channel of determinand, or first protection board (14) with the conductive layer (25) in the first party
Upward interval forms the sense channel, the first direction and first protection board (14) and second protection board
(24) thickness direction is parallel.
2. thickness detection apparatus according to claim 1, it is characterised in that the conductive layer (25) is arranged on described second
On the surface of the close detection electrode (23) of protection board (24).
3. thickness detection apparatus according to claim 1, it is characterised in that the conductive layer (25) includes ITO layer, conduction
Adhesive tape and/or conductive ink layer.
4. thickness detection apparatus according to claim 1, it is characterised in that the thickness of the conductive layer (25) is more than or waited
In 5 μm.
5. thickness detection apparatus according to claim 1, it is characterised in that the thickness detection apparatus includes multiple described
Electrode (23) is detected, the thickness detection apparatus also includes electrostatic induction chip, and the electrostatic induction chip includes multiple described
Detect electrode (23).
6. thickness detection apparatus according to claim 1, it is characterised in that the common electrode unit (10) also includes：
First framework (11), first receiving space is formed with first protection board (14), the common electrode (13) is arranged on
In the first receiving space.
7. thickness detection apparatus according to claim 6, it is characterised in that the common electrode unit (10) also includes：
First line plate (12), is arranged in the first receiving space, and the common electrode (13) is arranged on described first
On the surface of close first protection board (14) of wiring board (12).
8. thickness detection apparatus according to claim 1, it is characterised in that the detection electrode unit (20) also includes：
Second framework (21), the second receiving space is formed with second protection board (24), the detection electrode (23) is arranged on
In second receiving space；And
Second wiring board (22), it is arranged in second receiving space, and the detection electrode (23) is arranged on described second
On the surface of close second protection board (24) of wiring board (22).
9. thickness detection apparatus according to claim 8, it is characterised in that the thickness detection apparatus also includes：
Detection unit (30), it is arranged on the surface of the remote detection electrode (23) of second wiring board (22), it is described
Detection unit (30) includes the detecting circuit electrically connected with the detection electrode unit (20).
10. thickness detection apparatus according to any one of claim 1 to 9, it is characterised in that first protection board
(14) and/or second protection board (24) is transparent panel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711003534.XA CN107860304A (en) | 2017-10-24 | 2017-10-24 | The thickness detection apparatus of film |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711003534.XA CN107860304A (en) | 2017-10-24 | 2017-10-24 | The thickness detection apparatus of film |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107860304A true CN107860304A (en) | 2018-03-30 |
Family
ID=61697292
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711003534.XA Withdrawn CN107860304A (en) | 2017-10-24 | 2017-10-24 | The thickness detection apparatus of film |
Country Status (1)
| Country | Link |
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| CN (1) | CN107860304A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109163668A (en) * | 2018-10-19 | 2019-01-08 | 威海华菱光电股份有限公司 | Thickness detection apparatus |
| CN111322941A (en) * | 2020-04-20 | 2020-06-23 | 威海华菱光电股份有限公司 | Film thickness detection device |
| CN111504169A (en) * | 2020-04-20 | 2020-08-07 | 威海华菱光电股份有限公司 | Film thickness detection device |
| CN112128280A (en) * | 2020-08-17 | 2020-12-25 | 江苏大学 | Self-powered sensor for monitoring thickness of automobile brake pad |
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Application publication date: 20180330 |