CN108917577A - A kind of thickness detection apparatus - Google Patents
A kind of thickness detection apparatus Download PDFInfo
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- CN108917577A CN108917577A CN201810730410.XA CN201810730410A CN108917577A CN 108917577 A CN108917577 A CN 108917577A CN 201810730410 A CN201810730410 A CN 201810730410A CN 108917577 A CN108917577 A CN 108917577A
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- thickness
- detection apparatus
- magnet
- detected
- thin slice
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- 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
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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
The invention discloses a kind of thickness detection apparatus, including：Movable part at least has first end, the second end and third end；First end, the second end and third end are located on a triangle, and the first plane where triangle intersects with the second plane where thin slice to be detected；Movable part is using first end as rotating fulcrum；Detection contact is fixed on the second end；Magnetic sensing unit and magnet；Any of the two is arranged on third end, another is fixed near third end relative to rotating fulcrum；Thickness direction of the magnetizing direction of magnet along thin slice to be detected.The thickness of thin slice to be detected is converted to perpendicular to displacement of the magnetic sensing unit relative to magnet on thickness direction by movable part, thickness direction of the magnetizing direction along thin slice to be detected of magnet is set, so that magnetic sensing unit can detect the magnetic field strength of two directions in a first direction, the linear detection range of detection device has been widened.
Description
Technical field
The present invention relates to detection technique fields, and in particular to a kind of thickness detection apparatus.
Background technique
In daily life and work, can often Thickness sensitivity be carried out to all kinds of paper file articles, in financial field, to paper
The valuable paper of the sheets such as coin, bill carries out Thickness sensitivity, may determine that the true and false etc. of valuable paper by Thickness sensitivity information
Information.
Existing patent document discloses a kind of thickness detection apparatus using hall sensor as detection unit, such as Fig. 1
It is shown, including fixed frame 7, it has been set in parallel reference axis 1 and detection axis 3 in fixed frame 7, has been fixedly installed on reference axis 1
Reference roller 2 is provided with the measuring roll pedestal 4 that multiple one end are rotated freely around the detection axis 3, each measuring roll base in detection axis 3
A measuring roll 6 is provided on the free end of seat 4.In order to keep the measuring roll 6 on the free end close to reference roller 2 always, examining
It surveys between roller pedestal 4 and fixed frame 7 and a torsional spring 5 is set, the both ends of the torsional spring 5 are overlapped on measuring roll pedestal 4 and fixed frame 7 respectively
It is upper to provide pressing force to 2 direction of reference roller for the free end of measuring roll pedestal 4.Each measuring roll pedestal 4 deviates from the one of measuring roll 6
Side is provided with a magnet 8, and each magnet 8 is corresponded on fixed frame 7 and is provided with a hall sensor 9.When thin slice to be detected from
When passing through between reference roller 2 and measuring roll 6, measuring roll 6 is lifted together with measuring roll pedestal 4, and hall sensor 9 is by detecting
The variation of the magnetic flux from magnet 8 judge displacement that magnet 8 floats upwards, therefore, it is determined that the thickness of sheet valuable document
Degree.When terminating detection, measuring roll 6 resets rapidly under the effect of torsional spring 5 together with measuring roll pedestal 4.
Summary of the invention
The embodiment of the invention provides a kind of thickness detection apparatus, including：Movable part, at least have first end,
The second end and third end；The first end, the second end and the third end are located on a triangle, and described three
First plane at angular place intersects with the second plane where thin slice to be detected；The movable part is with the first end
Rotating fulcrum；Detection contact is fixed on the second end, is adapted to abut against on thin slice to be detected；Magnetic sensing is single
Member and magnet；Any of the two is arranged on the third end, another is fixedly installed relative to the rotating fulcrum
Near the third end；Thickness direction of the magnetizing direction of the magnet along the thin slice to be detected, the magnetic sensing
Unit is used to be arranged in the adjacent one end of the magnet, and for detecting the magnet first in movable part rotation
Magnetic induction intensity on direction, thickness direction of the first direction perpendicular to the thin slice to be detected.
Optionally, the thickness detection apparatus further includes：Supporter is bonded setting with the second end；The support
For placing the thin slice to be detected between body and the second end.
Optionally, the supporter is rotatable first roller.
Optionally, the thickness detection apparatus further includes：Elastic component is connect with the second end, and the elastic component is given
Biasing force of the second end towards the supporter.
Optionally, the detection contact includes the second roller.
Optionally, the triangle is acute triangle, and the angle where the first end is greater than the second end
Angle where portion, the third end.
Optionally, the triangle is right angled triangle, and the first end is right-angled apices.
Optionally, the thickness detection apparatus further includes：Bracket or shell, either one or two of magnetic sensing unit and magnet are fixed
It is arranged on the bracket or shell, the movable part is fixed at the bracket or shell by the first end
On.
Optionally, the first end is fixed on the bracket or shell by torsional spring or elastic slice.
Optionally, the thickness detection apparatus includes at least two detection contacts, and each detection contact is one corresponding
Magnetic sensing unit and magnet；At least two detection contacts are arranged along the edge of the thin slice to be detected, are adapted to detect for described
Thickness at chip edge different location to be detected.
The thickness of thin slice to be detected is converted to by movable part by thickness detection apparatus provided in an embodiment of the present invention
Displacement of the magnetic sensing unit relative to magnet on one direction (perpendicular to the thickness direction of thin slice to be detected), is arranged magnetizing for magnet
Direction is along the thickness direction of thin slice to be detected, and the magnetizing direction that magnet is arranged is vertical with the detection direction of magnetic sensing unit, magnetic
Sensing unit is located at the adjacent one end of magnet, so that magnetic sensing unit can detect two directions in a first direction
Magnetic field strength has widened the linear detection range of detection device, the sheet thickness that thickness detection apparatus is accurately detected
Range is bigger.
Detailed description of the invention
The features and advantages of the present invention will be more clearly understood by referring to the accompanying drawings, and attached drawing is schematically without that should manage
Solution is carries out any restrictions to the present invention, in the accompanying drawings：
Figure 1A shows the longitudinal profile schematic diagram of existing thickness detection apparatus entirety；
Figure 1B shows the longitudinal profile schematic diagram of existing thickness detection apparatus part；
Fig. 1 C shows the relation curve of distance between hall sensor output valve and magnet in existing thickness detection apparatus
Figure；
Fig. 2A -2C respectively illustrates a kind of longitudinal profile schematic diagram of thickness detection apparatus according to an embodiment of the present invention；
Fig. 3 A-3C respectively illustrates a kind of shape and structure schematic diagram of movable part；
Fig. 4 shows the detection schematic diagram of movable part in thickness detection apparatus；
Fig. 5 A-5B respectively illustrates a kind of set-up mode and detection schematic diagram of magnetic sensing unit and magnet；
Fig. 6 shows in the thickness detection apparatus of the embodiment of the present invention distance between magnetic sensing unit output valve and magnet
Graph of relation.
Specific embodiment
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is
A part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, those skilled in the art are not having
Every other embodiment obtained under the premise of creative work is made, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that term " center ", "upper", "lower", "left", "right", "vertical",
The orientation or positional relationship of the instructions such as "horizontal", "inner", "outside" be based on the orientation or positional relationship shown in the drawings, merely to
Convenient for description the present invention and simplify description, rather than the device or element of indication or suggestion meaning must have a particular orientation,
It is constructed and operated in a specific orientation, therefore is not considered as limiting the invention.In addition, term " first ", " second ",
" third " is used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It can
To be mechanical connection, it is also possible to be electrically connected；It can be directly connected, can also can be indirectly connected through an intermediary
Connection inside two elements.For the ordinary skill in the art, above-mentioned term can be understood at this with concrete condition
Concrete meaning in invention.
As long as in addition, the non-structure each other of technical characteristic involved in invention described below different embodiments
It can be combined with each other at conflict.
Inventor studies the distance between hall sensor output valve and magnet in existing thickness detection apparatus,
Its result is as shown in Figure 1 C, and wherein L is the distance between hall sensor and magnet, and H is the output valve of hall sensor, and M is
Linearly interval.It can be seen that the distance between hall sensor output valve and magnet in first quartile into curved line relation from Fig. 1 C,
Linearly interval M is smaller.Due to during actually detected, when hall sensor output valve is converted to thickness value also according to
Linear relationship conversion, so for the accuracy for ensuring testing result, must be requested that the thickness of thin slice to be detected cannot be greater than line
The range of property section M.Therefore, the range of linearity of existing thickness detection apparatus is smaller, and the thickness range that usually can be detected exists
0.1mm to 0.2mm, it is difficult to the accurate detection biggish thin slice to be detected of thickness.
Based on above-mentioned discovery, a kind of thickness detection apparatus is inventor provided, to solve the line of existing thickness detection apparatus
The property lesser problem of range.
Embodiment one
Fig. 2A, Fig. 2 B and Fig. 2 C show the side signal of thickness detection apparatus according to an embodiment of the present invention when detecting
Figure.As seen in figs. 2a-2c, which includes movable part 10, detection contact 20, magnetic sensing unit and magnet.
Movable part 10 at least has first end O, the second end A and third end B.First end O, the second end
A and third end B is located on a triangle, and the first plane where the triangle and second where thin slice X to be detected are flat
Face intersection namely the first plane with the second plane are not parallel.Movable part 10 is using first end O as rotating fulcrum.It needs
Supplementary explanation, movable part 10 are also possible to either triangular supports structure as seen in figs. 2a-2c such as Fig. 3 A institute
Fan-shaped surface structure, the gore structure as shown in Figure 3B, T shape supporting structure as shown in Figure 3 C shown, the application is to activity
The concrete shape of 10 entity structure of component is without limitation.As long as movable part 10 has first end O, the second end A and third
End B, and these three ends meet above-mentioned requirements i.e. within the scope of protection of this application.
Detection contact 20 is fixed on the second end A.The detection contact 20 is adapted to abut against on thin slice X to be detected.
Any of magnetic sensing unit and magnet are arranged on the B of third end, another is relative to rotating fulcrum (i.e. the
One end O) it is fixed near the B of third end.For example, it may be magnet is arranged on the B of third end, magnetic sensing unit
Setting is near the B of third end at location of C, as shown in Figure 5A；It is also possible to magnetic sensing unit to be arranged on the B of third end,
Magnet setting is near the B of third end at location of C, as shown in Figure 5 B.Only it is arranged on the B of third end (i.e. with magnet below
Shown in Fig. 5 A) for illustrate the testing principle of thickness detection apparatus.
As seen in figs. 2a-2c, when detecting, thin slice X to be detected is pasted thickness detection apparatus provided by the embodiment of the present invention
Close detection contact 20, and drive detection contact 20 around rotating fulcrum O towards the direction rotation of third end, (top is bent in such as figure
Shown in line arrow), then the magnet on the B of third end is rotated towards same direction therewith, so that the magnet on the B of third end is near
Magnetic sensing unit at location of C generates the relative displacement on first direction.Here first direction refers to perpendicular to be detected thin
The thickness direction of piece X.
As shown in figure 4, the initial position of three ends is respectively A, O, B, and it is respectively A ', O, B after rotation ', third end
Portion produces the displacement x of the first direction and displacement y of thickness direction, and the displacement x of first direction is much larger than thickness
Spend the displacement y in direction.
In conjunction with Fig. 5 A, the magnetizing direction (namely relative position of the pole N and the pole S) of magnet is along the thickness side of thin slice X to be detected
To magnetic sensing unit is used to be arranged in the adjacent one end of magnet, and for detecting magnet when movable part 10 rotates first
Magnetic induction intensity (vector) on direction.It can be seen that magnetic sensing is single during magnet and magnetic sensing unit relatively move
The component of member magnetic field strength detected in a first direction can be towards left in figure, can also be towards right in figure
's.
Fig. 6 shows the distance between the output valve of magnetic sensing unit and magnet relationship in the embodiment of the present invention, and wherein L is
The distance between magnetic sensing unit and magnet, H are the output valve of magnetic sensing unit, and M is linearly interval.Fig. 6 and Fig. 1 C is compared
Afterwards as can be seen that wider (at least existing Thickness sensitivity of the range of linearity of thickness detection apparatus provided by the embodiment of the present invention
Twice of device).
The thickness of thin slice to be detected is converted to the position on first direction by movable part by above-mentioned thickness detection apparatus
It moves, thickness direction of the magnetizing direction along thin slice to be detected of magnet is set, and the magnetizing direction and magnetic sensing unit of magnet are set
Detection direction it is vertical, magnetic sensing unit is located at the adjacent one end of magnet, so that magnetic sensing unit can be in a first direction
On detect the magnetic field strengths of two directions, widened the linear detection range of detection device, enabled thickness detection apparatus
The sheet thickness range accurately detected is bigger, such as the thin slice of 1mm thickness.
In existing thickness detection apparatus, magnet generates displacement relative to hall sensor in a thickness direction, leads to magnet
The spatial dimension of relative motion between hall sensor is limited, and then leads to thickness detection apparatus institute thickness that can be detected
It is limited in scope.Thickness detection apparatus provided by the embodiment of the present invention passes through movable part for the phase between magnet and detection contact
The relative motion space increased between magnet and detection contact perpendicular to thickness direction is converted to movement, and then can be examined
The thickness range of survey is larger.
Compared with the scheme that the testing result to existing thickness detection apparatus is modified using linearity correction algorithm, this
Thickness detection apparatus provided by inventive embodiments has widened linear detection range, and (and to result, linearly modified method is not opened up
Wide linear detection range), it can be obtained accurate testing result without repeated detection, multiple correction, detection efficiency is higher.
In this respect it is to be noted that " vertical " in the application can be strict vertical, it is also possible to allow in error
It is substantially vertical in range.
Embodiment two
The embodiment of the invention provides another thickness detection apparatus, and the difference with embodiment one is, further include：Support
Body 30 is bonded setting with the second end A.For placing thin slice X to be detected between supporter 30 and the second end A.
The supporter 30 can be rotatable first roller as shown in Figure 2 A.Accordingly, as the present embodiment
A kind of optional embodiment, detection contact 20 can be rotatable second roller as shown in Figure 2 A.First roller and second
Roller is engaged, one of them is driven by motor as driving wheel, another is as driven wheel；Or first roller and second
Roller can also be driven by motor.The rotation direction of two rollers can be as shown in Figure 2 A, to facilitate thin slice X to be detected from
Pass through between one roller and the second roller.Alternatively, the embodiment arranged side by side as the optional embodiment, detection contact 20 can also
To be end with the probe that can be rotated ball.In specific detection process, the first roller can be driven by motor, by with it is to be checked
That surveys thin slice X drives thin slice X to be detected to pass through between the first roller and probe towards the frictional force between supporter one side, visits
Ball on needle contacts the one side of the separate supporter of thin slice X to be detected.
The supporter 30 can also be transmission device as shown in Figure 2 B, such as moveable datum plate.Correspondingly, it examines
Surveying contact 20 can be rotatable roller as shown in Figure 2 A, is also possible to end and has the probe that can be rotated ball, specifically
The preceding paragraph is please referred to, details are not described herein.
It should be added that thickness detection apparatus described in embodiment one can also not have supporter.Such as Fig. 2 C
Shown, thickness detection apparatus described in embodiment one can be fixedly installed on bracket 40, and the portion first end O of movable part 10 is fixed
It is set on bracket 40, is set to magnetic sensing unit or magnet except movable part 10 and is fixed on bracket 40, and
The surface of the existing equipments such as work top (not included in thickness detection apparatus) is hingedly arranged in one end D of bracket 40.Work as needs
When detection, the surface of existing equipment first is lifted away from by one jiao of bracket 40, and bracket 40 is rotated entirely around D, then by thin slice X to be detected
It is put into the surface position corresponding with detection contact 20 of existing equipment, is finally that bracket 40 restores to the surface of existing equipment, makes
Detection contact 20 is pressed in the surface of thin slice X to be detected.
Embodiment three
The embodiment of the invention provides another thickness detection apparatus, the difference with embodiment one or embodiment two is,
Thickness detection apparatus includes at least two detection contacts 20, the corresponding magnetic sensing unit of each detection contact and magnet, is formed
One group.Every group can be set on different movable parts, also can be set on same movable part, the application is to specific
Set-up mode is without limitation.At least two detection contact 20 is arranged along the edge of thin slice to be detected, is adapted to detect for be detected thin
Thickness at piece edge different location, forms the thickness detection apparatus of multichannel.The setting of multichannel is it can be concluded that be detected thin
The thickness information in piece full width face.
It will be understood by those skilled in the art that magnetic sensing unit can there are many, for example, by using hall sensor as magnetic
Sensing unit.As a kind of optional embodiment of multichannel thickness detection apparatus, magnetic sensing unit includes giant magnetoresistance or magnetic
Property tunnel junction element.Giant magnetoresistance element and magnetic tunnel junction element are a kind of magneto-resistors that resistance value changes with external magnetic field variation
Element, R-H (resistance value-external magnetic field) curve have low magnetic hysteresis, the characteristic of high saturation field and the wide range of linearity, relative to traditional
Magnetic sensor elements (such as inductance coil and Hall element) have higher precision and better temperature characterisitic, compared to each to different
Property magnetoresistive element have higher saturation field, as magnetism thickness transducer sensing element be optimal.It selects huge
On the one hand magnetoresistive element and magnetic tunnel junction element help to realize the detection of the wide range of linearity, separately as magnetic sensing unit
On the one hand, since giant magnetoresistance element and magnetic tunnel junction element precision are high and small in size, thus the volume of its corresponding magnet
Also corresponding to reduce, the increase of number of channels is realized in the detection of same widths, and then increase resolution ratio；Also can simultaneously
The distance for guaranteeing interchannel, to reduce interference.Thickness detection apparatus provided in an embodiment of the present invention is on the width of 180mm
It can be realized 24 channels, resolution ratio is up to 7.5mm.
Magnetic sensing unit can be single resistance, half-bridge or full bridge structure.The bridge arm of single resistance, half-bridge or full-bridge is by one herein
A or multiple identical magnet-sensitive elements are connected and/or are composed in parallel, and each bridge arm can be equivalent to a magneto-resistor, Mei Geqiao
The magnetic-field-sensitive direction of magnetic sensor elements in arm is all identical.Above-mentioned list electric resistance structure contains a magneto-resistor, half-bridge structure
It is composed in series by the identical magneto-resistor of two physical properties, full bridge structure connects structure by the identical magneto-resistor of four physical properties
Operating current will be imported when at, use.
Finally, you need to add is that, as a kind of optional embodiment of embodiment one, embodiment two or embodiment three,
Movable part 10 makes to be bonded between the surface of the second end and supporter, existing equipment by self gravitation effect, and has
Biasing force.Alternatively, alternatively optional embodiment, thickness detection apparatus further include elastic component, elastic component and second end
Portion A connection, can be and be directly connected to, and be also possible to be indirectly connected with, and elastic component is to the second end A with towards the bias of supporter
Power.The elastic component can be spring, elastic slice.
Frame shown in thick dashed line can be branch included by thickness detection apparatus provided herein itself in Fig. 2A -2C
Frame or shell 40；The knot being also possible in the existing implementation environment that thickness detection apparatus is related in practical set use process
Structure namely thickness detection apparatus provided herein can not also include bracket or shell.When thickness detection apparatus includes branch
When frame or shell 40, any of magnetic sensing unit and magnet are fixed on the bracket or shell 40.Movable part 10
First end O can be fixed at by torsional spring or elastic slice on the bracket or shell 40, can to the second end A with direction
The biasing force of supporter.
As a kind of optional embodiment of embodiment one, embodiment two or embodiment three, held for three on movable part 10
The triangle that portion is in is acute triangle, and the angle where first end O is greater than where the second end A, the third end portion B
Angle.It is further preferred that the triangle is right angled triangle, and first end O is right-angled apices.
As a kind of optional embodiment of embodiment one, embodiment two or embodiment three, third end B and first end
The distance between O is greater than the distance between the second end A and first end O, so as to turn by the thickness of thin slice to be detected
It is amplified when being changed to first direction displacement, improves the precision of detection.
Although being described in conjunction with the accompanying the embodiment of the present invention, those skilled in the art can not depart from the present invention
Spirit and scope in the case where various modifications and variations can be made, such modifications and variations are each fallen within by appended claims institute
Within the scope of restriction.
Claims (10)
1. a kind of thickness detection apparatus, which is characterized in that including：
Movable part at least has first end, the second end and third end；The first end, the second end and institute
Third end is stated on a triangle, the second plane where the first plane and thin slice to be detected where the triangle
Intersection；The movable part is using the first end as rotating fulcrum；
Detection contact is fixed on the second end, is adapted to abut against on thin slice to be detected；
Magnetic sensing unit and magnet；Any of the two is arranged on the third end, another is relative to the rotation
Fixed pivot is arranged near the third end；The magnetizing direction of the magnet is along the thickness side of the thin slice to be detected
To the magnetic sensing unit is used to be arranged in the adjacent one end of the magnet, and for detecting in movable part rotation
The magnetic induction intensity of the magnet in a first direction, thickness direction of the first direction perpendicular to the thin slice to be detected.
2. thickness detection apparatus according to claim 1, which is characterized in that further include：
Supporter is bonded setting with the second end；Between the supporter and the second end for place it is described to
Detect thin slice.
3. thickness detection apparatus according to claim 2, which is characterized in that the supporter is rotatable first roller
Wheel.
4. thickness detection apparatus according to claim 2, which is characterized in that further include：
Elastic component is connect with the second end, and the elastic component gives biasing force of the second end towards the supporter.
5. thickness detection apparatus according to claim 1, which is characterized in that the detection contact includes the second roller.
6. thickness detection apparatus according to claim 1, which is characterized in that the triangle is acute triangle, and
Angle where the first end is greater than the angle where the second end, the third end.
7. thickness detection apparatus according to claim 6, which is characterized in that the triangle is right angled triangle, and
The first end is right-angled apices.
8. thickness detection apparatus according to claim 1, which is characterized in that further include：
Bracket or shell, either one or two of magnetic sensing unit and magnet are fixed on the bracket or shell, the movable part
Part is fixed on the bracket or shell by the first end.
9. thickness detection apparatus according to claim 8, which is characterized in that the first end is solid by torsional spring or elastic slice
It is fixed to be arranged on the bracket or shell.
10. thickness detection apparatus according to claim 1, which is characterized in that including at least two detection contacts, often
The corresponding magnetic sensing unit of a detection contact and magnet；At least two detection contacts are along the edge of the thin slice to be detected
Setting, the thickness being adapted to detect at the chip edge different location to be detected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810730410.XA CN108917577A (en) | 2018-07-05 | 2018-07-05 | A kind of thickness detection apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810730410.XA CN108917577A (en) | 2018-07-05 | 2018-07-05 | A kind of thickness detection apparatus |
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| CN108917577A true CN108917577A (en) | 2018-11-30 |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103499271A (en) * | 2013-09-29 | 2014-01-08 | 无锡乐尔科技有限公司 | Thickness measurement device |
| CN203733194U (en) * | 2014-02-26 | 2014-07-23 | 山东新北洋信息技术股份有限公司 | Slice medium thickness detection mechanism of and slice medium processing device |
| CN204087327U (en) * | 2014-09-28 | 2015-01-07 | 山东新北洋信息技术股份有限公司 | Flaky medium thickness detection mechanism and treating apparatus, paper currency sorter |
| CN106934917A (en) * | 2017-02-16 | 2017-07-07 | 上海古鳌电子科技股份有限公司 | A kind of Hall thickness detection mechanism |
| CN208419861U (en) * | 2018-07-05 | 2019-01-22 | 无锡乐尔科技有限公司 | A kind of thickness detection apparatus |
-
2018
- 2018-07-05 CN CN201810730410.XA patent/CN108917577A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103499271A (en) * | 2013-09-29 | 2014-01-08 | 无锡乐尔科技有限公司 | Thickness measurement device |
| CN203733194U (en) * | 2014-02-26 | 2014-07-23 | 山东新北洋信息技术股份有限公司 | Slice medium thickness detection mechanism of and slice medium processing device |
| CN204087327U (en) * | 2014-09-28 | 2015-01-07 | 山东新北洋信息技术股份有限公司 | Flaky medium thickness detection mechanism and treating apparatus, paper currency sorter |
| CN106934917A (en) * | 2017-02-16 | 2017-07-07 | 上海古鳌电子科技股份有限公司 | A kind of Hall thickness detection mechanism |
| CN208419861U (en) * | 2018-07-05 | 2019-01-22 | 无锡乐尔科技有限公司 | A kind of thickness detection apparatus |
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