CN104183052B - Thickness detection apparatus and manufacture method thereof - Google Patents
Thickness detection apparatus and manufacture method thereof Download PDFInfo
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- CN104183052B CN104183052B CN201310198864.4A CN201310198864A CN104183052B CN 104183052 B CN104183052 B CN 104183052B CN 201310198864 A CN201310198864 A CN 201310198864A CN 104183052 B CN104183052 B CN 104183052B
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- 238000001514 detection method Methods 0.000 title claims abstract description 73
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 22
- 238000000034 method Methods 0.000 title claims abstract description 17
- 239000000463 material Substances 0.000 claims description 33
- 239000010408 film Substances 0.000 claims description 29
- 230000005611 electricity Effects 0.000 claims description 10
- 239000007769 metal material Substances 0.000 claims description 7
- 229910000889 permalloy Inorganic materials 0.000 claims description 6
- 239000004575 stone Substances 0.000 claims description 6
- 230000005355 Hall effect Effects 0.000 claims description 5
- 239000010409 thin film Substances 0.000 claims description 4
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 claims description 3
- 229910000976 Electrical steel Inorganic materials 0.000 claims description 3
- 229910000863 Ferronickel Inorganic materials 0.000 claims description 3
- QJVKUMXDEUEQLH-UHFFFAOYSA-N [B].[Fe].[Nd] Chemical compound [B].[Fe].[Nd] QJVKUMXDEUEQLH-UHFFFAOYSA-N 0.000 claims description 3
- -1 aluminum nickel cobalt Chemical compound 0.000 claims description 3
- 229910052804 chromium Inorganic materials 0.000 claims description 3
- 239000011651 chromium Substances 0.000 claims description 3
- 239000011248 coating agent Substances 0.000 claims description 3
- 238000000576 coating method Methods 0.000 claims description 3
- 238000000151 deposition Methods 0.000 claims description 3
- 230000008021 deposition Effects 0.000 claims description 3
- 229910001172 neodymium magnet Inorganic materials 0.000 claims description 3
- 229910000938 samarium–cobalt magnet Inorganic materials 0.000 claims description 3
- 238000004544 sputter deposition Methods 0.000 claims description 3
- 229910000859 α-Fe Inorganic materials 0.000 claims description 3
- 238000007747 plating Methods 0.000 claims description 2
- 239000002861 polymer material Substances 0.000 claims description 2
- 229910052755 nonmetal Inorganic materials 0.000 claims 1
- 238000010276 construction Methods 0.000 abstract description 9
- 230000000694 effects Effects 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
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- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
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- Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
Abstract
The open a kind of thickness detection apparatus of the present invention, its shell is hollow structure and one end offers window, the boss that one end of first magnet has outward and formed, first magnet is slidingly arranged in the hollow structure of shell, and boss protrudes out outside window, elastic component is arranged in the hollow structure of shell, and one end of elastic component is inconsistent with the first magnet, its other end is inconsistent with the circuit board being fixedly connected in shell, Magnetic Sensor be arranged on the one side of circuit board and and the first magnet relative and keep an interval, conduction capillary is connected to the another side of circuit board and stretches out outside shell；The accuracy of detection of this detection device is high, and simple in construction, and production cost is low, has wider application.Invention additionally discloses a kind of thickness detection apparatus manufacture method.
Description
Technical field
The present invention relates to micro-nano electronic technology field, relate more specifically to a kind of thickness detection apparatus and making thereof
Method.
Background technology
In industrial and agricultural production and daily life, it is often necessary to the thickness of sheet material or the change of thickness are examined
Survey, in order to control the course of processing or carry out other judgements, such as to banknote, lamellar form, check, voucher
Deng thickness carry out detecting to judge accordingly, wherein, in currency processing procedure, it is often necessary to paper money
The thickness of ticket detects, to identify overlapping banknote or to distinguish whether have foreign body, at former on banknote
In detection, as long as the thickness of banknote is significantly more than pre-set threshold value, then it is identified as existing overlapped banknotes, and rear
In a kind of detection, detect when the thickness of a banknote part is bigger, be i.e. identified as the existence of foreign body.
Existing Thickness sensitivity mode is divided into contact and contactless two classes, is most commonly used that contactless at present
In laser thickness detection, laser beam as mechanical probes during contact measurement, is utilized electric charge coupling by the method
Clutch part realizes opto-electronic conversion, has that not damage body surface, non-environmental-pollution, capacity of resisting disturbance strong, smart
Degree high；But owing to structure is complicated, bulky, production cost is higher and is not widely deployed for
In industrial or agricultural and daily life, especially in modern bank industry all kinds of false distinguishing facility and sorting facility.
Therefore, it is necessary to a kind of simple in construction is provided, production cost is low, accuracy of detection is high, application is more extensive
Thickness detection apparatus and manufacture method to solve the deficiencies in the prior art.
Summary of the invention
It is an object of the invention to provide a kind of simple in construction, production cost is low, accuracy of detection is high, application more
Thickness detection apparatus widely.
Another object of the present invention is to provide a kind of and assemble the thickness detection apparatus system simple, production cost is low
Make method.
For achieving the above object, the technical scheme is that a kind of thickness detection apparatus of offer, it includes
Shell, the first magnet, elastic component, Magnetic Sensor, circuit board and conduction capillary, described shell is hollow knot
Structure and one end offer window, and the boss that one end of described first magnet has outward and formed is described
First magnet is slidingly arranged in the hollow structure of described shell, and described boss protrudes out outside described window,
Described elastic component is arranged in the hollow structure of described shell, and one end of described elastic component and described first magnetic
Body is inconsistent, and the other end of described elastic component is inconsistent with the described circuit board being fixedly connected in described shell,
Described circuit board is fixedly connected on the interior other end away from described window of described shell, and described Magnetic Sensor is arranged
On the one side of described circuit board, and described Magnetic Sensor and described first magnet relative and keep an interval,
Described conduction capillary is connected to the another side of described circuit board, and described conduction capillary stretch out described shell it
Outward.
It is preferred that described first magnet has a base portion, described base portion have the upper bottom surface being parallel to each other and under
Bottom surface, described upper bottom surface has the described boss upwards protruding out formation, described bottom surface and described elastic component
Inconsistent.
It is preferred that described first magnet is permanent magnet or is partly permanent magnet.
It is preferred that described permanent magnet uses neodymium iron boron, SmCo, aluminum nickel cobalt, ferrite, permalloy or silicon
Steel disc make, or use metal material, nonmetallic materials make and its outer surface plating chromium, ferronickel or
The coating of permalloy and formed.
It is preferred that described elastic component is column, described elastic component covers at outside described Magnetic Sensor and with described
Circuit board is the most inconsistent.
It is preferred that described Magnetic Sensor is made up of at least two magnetic sensitive films, described magnetic sensitive film passes through
Electrode end to end with it connects into favour stone half-bridge electric bridge or favour stone full-bridge electric bridge.
It is preferred that described magnetic sensitive film is anisotropic magnetoresistive amr film, huge magnetic magnetic resistance gmr film, tunnel
Channel effect magnetic resistance tmr film, Hall HALL effect magnetic sensitive film or giant Hall effect thin film.
It is preferred that described magnetic sensitive film is in continuity continuously or in discontinuity, the magnetic susceptibility of each discontinuity
The conductive layer formed by deposition, plated film, sputtering mode between thin film is electrically connected with.
It is preferred that the magnetic susceptibility direction of described Magnetic Sensor is parallel with the magnetic line of force direction of described first magnet or
Become an oblique angle.
It is preferred that be spaced apart space length or by flexible material between described Magnetic Sensor and described first magnet
The flexible body interval that material is constituted.
It is preferred that described thickness detection apparatus also includes an elastic parts with the second magnet, described elasticity
Assembly is arranged between described elastic component and described circuit board, the end of described elastic component and described elastic parts
Side contact, the opposite side of described elastic parts is arranged on described circuit board, and described second magnet
Relative with described first magnet, described second magnet is identical with the polarity of the opposite end of described first magnet.
It is preferred that described elastic parts also includes elastic plate and support, described support offers through hole, institute
Stating elastic plate and be supported in the one side of described support and corresponding to described through hole, described second magnet is connected to institute
Stating on the side of elastic plate and relative with described first magnet, the another side of described support is arranged at described electricity
On the plate of road, and described second magnet is corresponding with described Magnetic Sensor.
It is preferred that the edge of described elastic plate forms supporting part, the center of described elastic plate forms movable part,
Multiple elastic arm, described movable part, elastic arm and support it is provided with between described supporting part and described movable part
Be respectively provided with certain gap between portion, described gap is distributed with cross structure with connect adjacent movable part,
Elastic arm and supporting part.
It is preferred that described elastic plate is by metal material, metal material oxide, nonmetallic materials, non-gold
Belong to material oxide or polymer material is made.
Accordingly, the present invention also provides for a kind of thickness detection apparatus manufacture method, and it comprises the steps:
One circuit board is provided, described circuit board is formed with circuit；
One Magnetic Sensor is provided, described Magnetic Sensor is connected on the one side of described circuit board；
Conduction capillary is provided, described conduction capillary is connected on the another side of described circuit board；
There is provided a shell, described shell to be hollow structure and one end offers window；
The first magnet, one end of described first magnet is provided to have the boss that outward is formed, by described the
One magnet is slidingly arranged in the hollow structure of described shell, and makes described boss protrude out outside described window；
One elastic component is provided, described elastic component is arranged in the hollow structure of described shell, and make described bullet
One end of property part is inconsistent with described first magnet；
Described circuit board is fixedly connected in the hollow structure of described shell, and makes described Magnetic Sensor and institute
Stating the first magnet and relatively and keep an interval, the other end making described elastic component is inconsistent with described circuit board,
Described conduction capillary stretches out outside described shell.
It is preferred that described thickness detection apparatus manufacture method still further comprises following steps:
One support is provided, described support offers a through hole,
One elastic plate is provided, described elastic plate is supported on described support, and make described elastic plate with described
Through hole is corresponding；
One second magnet is provided, described second magnet is connected on the side of described elastic plate, thus is formed
One elastic parts；
Described elastic parts is arranged between described circuit board and described elastic component, and make described first magnet,
Described second magnet, described Magnetic Sensor are corresponding in turn to and all keep certain intervals, and described second each other
Magnet is identical with the polarity of described first magnet opposite end, and the end of described elastic component contacts with described support.
Compared with prior art, due to the thickness detection apparatus of the present invention, it include shell, the first magnet,
Elastic component, Magnetic Sensor, circuit board and conduction capillary, shell is hollow structure and one end offers window,
The boss that one end of first magnet has outward and formed, the first magnet is slidingly arranged in shell
In hollow structure, and boss protrudes out outside window, and elastic component is arranged in the hollow structure of shell, and elastic component
One end inconsistent with the first magnet, its other end is inconsistent with the circuit board being fixedly connected in shell, magnetic
Sensor is arranged on the one side of circuit board and and the first magnet is relative and keeps an interval, conduction capillary to connect
It is connected to the another side of circuit board and stretches out outside shell；During for detecting, the boss of the first magnet directly with
Detected material contact, when having spot on detected material, the spot pushing tow boss of protrusion make the first magnet to
Sliding in shell, so that the distance between the first magnet and Magnetic Sensor reduces, Magnetic Sensor senses the
The magnetic field of one magnet becomes strong, and output potential is uprushed, when, after spot, elastic component resets and makes the first magnet extensive
Multiple initial position, the magnetic field recovery initial value of the first magnet that Magnetic Sensor senses, the output electricity of Magnetic Sensor
Gesture also recovers initial value, judges to have on detected material spot accordingly, and accuracy of detection is high, and this detection device
Simple in construction, therefore production cost is low, has wider application.
Accompanying drawing explanation
Fig. 1 is the external structure schematic diagram of thickness detection apparatus of the present invention.
Fig. 2 is the exploded view of the first embodiment of thickness detection apparatus of the present invention.
Fig. 3 is the internal structure schematic diagram after Fig. 2 assembles.
Fig. 4 is the use view of Fig. 2.
Fig. 5 is the exploded view of the second embodiment of thickness detection apparatus of the present invention.
Fig. 6 is the internal structure schematic diagram after Fig. 5 assembles.
Fig. 7 is the enlarged diagram of Fig. 5 Elastic assembly and circuit board.
Fig. 8 is the exploded view of Fig. 7 Elastic assembly.
The enlarged diagram that Fig. 9 is Fig. 8 Elastic plate and the second magnet is connected.
Figure 10 is the use view of Fig. 5.
Detailed description of the invention
With reference now to accompanying drawing, describing embodiments of the invention, element numbers similar in accompanying drawing represents similar unit
Part.Thickness detection apparatus 1 provided by the present invention, accuracy of detection is high, and simple in construction, production cost are low,
There is wider application, be particularly suited in modern bank industry all kinds of false distinguishing facility and sorting facility.
Shown in Fig. 1-Fig. 4, in the first embodiment of thickness detection apparatus 1 of the present invention, it includes shell
10, the first magnet 20, elastic component 30, Magnetic Sensor 40, circuit board 50 and conduction capillary 60, wherein,
Elastic component 30 is preferably a spring, and circuit board 50 is pcb board.
Specifically, described shell 10 is in hollow structure, and the hollow structure of shell 10 forms containing cavity 11,
There is in one end of shell 10 base plate 12, base plate 12 offers window 13, in the present embodiment, window
Mouth 13 is in strip, and the other end of shell 10 forms the opening of a through containing cavity 11.
The boss 22 corresponding with window 13 shape that one end of first magnet 20 has outward and formed,
First magnet 20 is slidingly arranged in the containing cavity 11 of shell 10, and boss 22 protrudes out outside window 13；
One end of spring 30 is inconsistent with the other end of the first magnet 20, the other end of spring 30 and circuit board 50
The most inconsistent, described Magnetic Sensor 40 is arranged on the one side of circuit board 50, and this magnetic
Sensor 40 and the first magnet 20 corresponding and keep an interval, Magnetic Sensor 40 and the first magnet 20 it
Between be spaced apart space length or the flexible body interval being made up of flexible material, and the magnetic susceptibility of Magnetic Sensor 40
Direction is parallel with the magnetic line of force direction of described first magnet 20 or becomes an oblique angle；Conduction capillary 60 is connected to electricity
The another side of road plate 50, circuit board 50 is fixedly connected on the opening part of described shell 10, and makes conduction weld
Pin 60 stretches out outside shell 10.
With continued reference to Fig. 2, described first magnet 20 has a base portion 21, and described base portion 21 has the most flat
The bottom surface 211 of row and upper bottom surface 212, described upper bottom surface 212 has the boss 22 upwards protruding out formation,
Boss 22 is elongated with corresponding with the shape of window 13, and certainly, boss 22 is not limited to strip,
May be arranged as other shapes, window 13 its shape corresponding is offered；The bottom surface 211 of its base portion 21
Contact with one end of spring 30.A described first magnet 20 generally permanent magnet or one part are permanent magnetism
Body, wherein, described permanent magnet can use neodymium iron boron, SmCo, aluminum nickel cobalt, ferrite, permalloy or
Silicon steel sheet directly makes, or metal material, nonmetallic materials can also be used to make and plate at its outer surface
Cover the coating of chromium, ferronickel or permalloy and formed.
Wherein, spring 30 is in column, when arranging, spring 30 is arranged at the first magnet 20 and circuit board 50
Between, make spring 30 cover at outside described Magnetic Sensor 40, and make one end and first magnet of spring 30
The bottom surface 211 of 20 is inconsistent, and the other end of spring 30 is the most inconsistent with circuit board 50.
Preferably, described Magnetic Sensor 40 is made up of at least two magnetic sensitive films, and described magnetic sensitive film leads to
Cross electrode end to end with it and connect into favour stone half-bridge electric bridge or favour stone full-bridge electric bridge；More specifically,
Described magnetic sensitive film is anisotropic magnetoresistive amr film, huge magnetic magnetic resistance gmr film, tunnel-effect magnetic resistance TMR
Film, Hall HALL effect magnetic sensitive film or giant Hall effect thin film.
It is highly preferred that described magnetic sensitive film is in continuously continuous or in discontinuity, if during in discontinuity,
The conductive layer formed by deposition, plated film, sputtering mode between the magnetic sensitive film of each discontinuity realizes electricity
Property connect.
Further in conjunction with the assembling shown in Fig. 1-Fig. 4, to the first embodiment of thickness detection apparatus 1 of the present invention
Journey and operation principle illustrate.
During installation, first Magnetic Sensor 40, Magnetic Sensor 40 and electricity are set on the one side of circuit board 50
Line electricity on road plate 50 connects, and connects conduction capillary 60 on the another side of circuit board 50；Then,
First magnet 20 is loaded in the containing cavity 11 of shell 10, and make the boss 22 of the first magnet 20 protrude out
Outside window 13；Again spring 30 is loaded in the containing cavity 11 of shell 10 so that it is one end and the first magnet 20
Bottom surface 211 inconsistent；Finally, then circuit board 50 is fixedly connected on the opening part of shell 10, and
Making circuit board 50 the most inconsistent with the other end of spring 30, spring 30 covers at Magnetic Sensor
Outside 40 so that keep an interval or flexible between Magnetic Sensor 40 and the bottom surface 211 of the first magnet 20
Interval, conduction capillary 60 stretches out outside shell 10, completes the assembling of thickness detection apparatus 1, due to this thickness
The simple in construction of degree detection device 1, therefore assembles simple, and production cost is low.
As shown in Figure 4, when described thickness detection apparatus 1 is for detecting the thickness of detected material 2,
Thickness detection apparatus 1 is arranged at the top of detection table top, and its boss 22 is corresponding with detection table top, tested
Survey thing 2 to contact through thickness detection apparatus 1 and with its boss 22 slidably.
So, during detected material 2 contacts with boss 22, at the normal shape in detected material 2 surface
Under state, keep between the Magnetic Sensor 40 and the bottom surface 211 of the first magnet 20 that are connected on circuit board 50
A certain distance, the electromotive force of Magnetic Sensor 40 output is definite value.
When there is spot on detected material 2, such as there is on detected material 2 gummed paper 2`, so, tested
When surveying thing 2 by thickness detection apparatus 1, gummed paper 2` thereon can the boss 22 of upwards pushing tow the first magnet 20,
So that the first magnet 20 moves upward, as shown in the direction of arrow in Fig. 3, now spring 30 is compressed；
First magnet 20 moves upward, and makes the distance between the first magnet 20 and Magnetic Sensor 40 reduce, and magnetic senses
Device 40 senses that the magnetic field of the first magnet 20 becomes strong, so that the electromotive force of output is uprushed.
And after the position with gummed paper 2` is passed through, owing to the elastic force effect of spring 30 makes the first magnet 20 reset,
And then make the former distance of range recovery between the first magnet 20 and Magnetic Sensor 40, so, Magnetic Sensor 40
The magnetic field of the first magnet 20 sensed restores to the original state, and its output potential also replys initial value；Accordingly, can determine whether
On detected material 2, there is projection.
Further, since height of projection is proportional to the output of Magnetic Sensor 40, therefore, according to Magnetic Sensor 40
Output valve, also can determine whether the height of projection, it is achieved the detection to detected material 2, and accuracy of detection be high.
Shown in Fig. 1, Fig. 5, Fig. 6, the second embodiment of thickness detection apparatus 1 of the present invention and above-mentioned the
The difference is that only of one embodiment: also include an elastic parts 70, the structure of miscellaneous part is all with above-mentioned
Embodiment is identical, is the most only described its difference, and other same sections repeat no more.
As shown in Figure 5, Figure 6, in the present embodiment, elastic parts 70 is arranged at spring 30 and circuit board 50
Between, one end of spring 30 contacts on elastic parts 70, and the other end contacts at going to the bottom of the first magnet 20
Face 211, the opposite side of described elastic parts 70 is arranged on circuit board 50.
Shown in Fig. 7-Fig. 9, elastic parts 70 includes support 71, elastic plate 72 and the second magnet 73,
Wherein, support 71 offers manhole 711；The described rounded structure of elastic plate 72, and elastic plate
The diameter of 72 is more than the diameter of through hole 711, and elastic plate 72 is connected to the one side of support 71 and corresponding to logical
Hole 711, i.e. the edge supports of elastic plate 72 is in the edge of through hole 711, and its edge is connected to support
On 71；Described second magnet 73 is connected on the one side of elastic plate 72 and corresponding with the first magnet 20,
Second magnet 73 is identical with the polarity of the opposite end of the first magnet 20；The another side of described support 71 is arranged
On circuit board 50, and elastic plate the 72, second magnet 73 is corresponding with Magnetic Sensor 40.
It is to be appreciated that described elastic plate 72, through hole 711 are not limited to circular configuration, it can also be arranged
Become other shapes, such as, be arranged to square etc., this technology being well known to those skilled in the art.
As shown in Figure 8, Figure 9, the edge of described elastic plate 72 forms supporting part 721, the center of elastic plate
Place forms the movable part 722 of circular configuration, is provided with multiple bullet between described supporting part 721 and movable part 722
Property arm 723, is respectively provided with certain gap between described movable part 722, elastic arm 723 and supporting part 721,
Described gap is distributed with cross structure 724 to connect adjacent movable part 722, elastic arm 723 and supporting part
721；Second magnet 73 is connected on its movable part 722, when the second magnet 73 is by the first magnet 20
Repulsion effect and when moving, drive elastic plate 72 to shake, Magnetic Sensor 40 can sense the second magnet 73
Changes of magnetic field.
Assembling shown in Fig. 1, Fig. 5-Figure 10, to the second embodiment of thickness detection apparatus 1 of the present invention
Process and operation principle illustrate.
During installation, first Magnetic Sensor 40, Magnetic Sensor 40 and electricity are set on the one side of circuit board 50
Line electricity on road plate 50 connects, and connects conduction capillary 60 on the another side of circuit board 50；Then,
First magnet 20 is loaded in the containing cavity 11 of shell 10, and make the boss 22 of the first magnet 20 protrude out
Outside window 13；Again spring 30 is loaded in the containing cavity 11 of shell 10 so that it is one end and the first magnet 20
Bottom surface 211 inconsistent；Then, elastic parts 70 is loaded in the containing cavity 11 of shell 10, and make
Its second magnet 73 is corresponding with the first magnet 20, has one between the second magnet 73 and the first magnet 20
The polarity of fixed interval and both opposite ends is identical, and support 71 is inconsistent with the other end of spring 30, spring
30 cover at outside the second magnet 73 and elastic plate 72；Finally, then by circuit board 50 it is fixedly connected on shell
The opening part of 10, Magnetic Sensor 40 is relative with the second magnet 73, and Magnetic Sensor 40 and the second magnet 73
Between have at regular intervals, conduction capillary 60 stretch out outside shell 10, complete the group of thickness detection apparatus 1
Dress, due to the simple in construction of this thickness detection apparatus 1, therefore assembles simple, and production cost is low.
As shown in Figure 10, when described thickness detection apparatus 1 is for detecting the thickness of detected material 2,
Thickness detection apparatus 1 is arranged at the top of detection table top, and its boss 22 is corresponding with detection table top, tested
Survey thing 2 by thickness detection apparatus 1 and to contact with its boss 22 slidably.
So, during detected material 2 contacts with boss 22, at the normal shape in detected material 2 surface
Under state, maintain a certain distance between the Magnetic Sensor 40 and the second magnet 73 that are connected on circuit board 50,
The electromotive force of Magnetic Sensor 40 output is definite value.
When there is spot on detected material 2, such as there is on detected material 2 gummed paper 2`, so, tested
When surveying thing 2 by thickness detection apparatus 1, the part that it has gummed paper 2` can upwards pushing tow the first magnet 20
Boss 22 so that the first magnet 20 moves upward, as shown in the direction of arrow in Figure 10, now spring
30 are compressed, and the first magnet 20 moves upward, and its repulsion effect makes the second magnet 73 also move upward, from
And reducing the distance between the second magnet 73 and Magnetic Sensor 40, Magnetic Sensor 40 senses the second magnet
The magnetic field of 73 becomes strong, so that the electromotive force of output is uprushed.
And after the position with gummed paper 2` is passed through, owing to the elastic force effect of spring 30 makes the first magnet 20 reset,
Second magnet 73 resets the most accordingly, and then makes the range recovery between the second magnet 73 and Magnetic Sensor 40 former
Distance, so, the magnetic field of the second magnet 73 that Magnetic Sensor 40 senses restores to the original state, its output potential
Also initial value is replied；Accordingly, can determine whether, on detected material 2, there is projection.
Further, since the height of the projection having on detected material 2 is proportional to the output of Magnetic Sensor 40,
Therefore, according to the output valve of Magnetic Sensor 40, also can determine whether the height of projection, it is achieved to detected material 2
Thickness sensitivity, and there is higher accuracy of detection.
Due to thickness detection apparatus 1 of the present invention, pass including shell the 10, first magnet 20, elastic component 30, magnetic
Sensor 40, circuit board 50 and conduction capillary 60, shell 10 is in hollow structure and one end offers window 13,
The boss 22 that one end of first magnet 20 has outward and formed, described first magnet 20 sets slidably
It is placed in the hollow structure of described shell 10, and described boss 22 protrudes out outside window 13, elastic component 30
It is arranged in the hollow structure of shell 10, and one end of elastic component 30 is inconsistent with the first magnet 20, elastic
The other end of part 30 is inconsistent with the circuit board 50 being fixedly connected in shell 10, and Magnetic Sensor 40 is arranged
On the one side of circuit board 50 and and the first magnet 20 relative and keep an interval, conduction capillary 60 connects
In the another side of circuit board 50 and outside stretching out shell 10；During for detecting, the boss of the first magnet 20
22 directly contact with detected material 2, when there is spot on detected material 2, and the spot pushing tow boss of protrusion
22 and make the first magnet 20 slide in shell 10, so that between the first magnet 20 and Magnetic Sensor 40
Distance reduce, Magnetic Sensor 40 senses the magnetic field of the first magnet 20 and becomes strong, and output potential is uprushed, and works as warp
After crossing spot, elastic component 30 resets and makes the first magnet 20 recover initial position, and Magnetic Sensor 40 senses
The first magnet 20 magnetic field recover initial value, the output potential of Magnetic Sensor 40 also recovers initial value, sentences accordingly
Having spot on disconnected detected material 2, accuracy of detection is high, and the simple in construction of this detection device, therefore produces
Low cost, has wider application.
Accordingly, an embodiment of thickness detection apparatus manufacture method provided by the present invention, including walking as follows
Rapid:
(1) circuit board is provided, described circuit board is formed with circuit；
(2) Magnetic Sensor is provided, described Magnetic Sensor is connected on the one side of described circuit board；
(3) conduction capillary is provided, described conduction capillary is connected on the another side of described circuit board；
(4) provide a shell, described shell to be hollow structure and one end offers window；
(5) the first magnet, one end of described first magnet is provided to have the boss that outward is formed, by institute
State in the hollow structure that the first magnet is slidingly arranged at described shell, and make described boss protrude out described window
Outside Kou；
(6) elastic component is provided, described elastic component is arranged in the hollow structure of described shell, and make institute
The one end stating elastic component is inconsistent with described first magnet；
(7) described circuit board is fixedly connected in the hollow structure of described shell, and makes described Magnetic Sensor
And described first magnet is relative and holding one interval, makes the other end of described elastic component offset with described circuit board
Touching, described conduction capillary stretches out outside described shell.
Accordingly, another embodiment of thickness detection apparatus manufacture method provided by the present invention, including as follows
Step:
(1) circuit board is provided, described circuit board is formed with circuit；
(2) Magnetic Sensor is provided, described Magnetic Sensor is connected on the one side of described circuit board；
(3) conduction capillary is provided, described conduction capillary is connected on the another side of described circuit board；
(4) provide a shell, described shell to be hollow structure and one end offers window；
(5) the first magnet, one end of described first magnet is provided to have the boss that outward is formed, by institute
State in the hollow structure that the first magnet is slidingly arranged at described shell, and make described boss protrude out described window
Outside Kou；
(6) elastic component is provided, described elastic component is arranged in the hollow structure of described shell, and make institute
The one end stating elastic component is inconsistent with described first magnet；
(7) elastic parts with the second magnet is provided, described elastic parts is arranged at described shell
In hollow structure, and make described second magnet relative with described first magnet and have at regular intervals, and described
Second magnet is identical with the polarity of described first magnet opposite end, and the other end of described elastic component and described bullet
Property assembly is inconsistent；
(8) described circuit board is fixedly connected in the hollow structure of described shell, and makes described Magnetic Sensor
Corresponding with described second magnet and have at regular intervals, described conduction capillary stretches out outside described shell.
Specifically, in this thickness detection apparatus manufacture method, the formation of step (7) Elastic assembly is specifically wrapped
Include following steps:
(71) support is provided, described support offers a through hole,
(72) elastic plate is provided, described elastic plate is supported on described support, and make described elastic plate
Corresponding with described through hole；
(73) provide one second magnet, described second magnet is connected on the side of described elastic plate, from
And form an elastic parts.
Due to the simple in construction of thickness detection apparatus 1 of the present invention, therefore, its manufacture method is simple, produces effect
Rate is high, and production cost is low.
Above disclosed only the preferred embodiments of the present invention, can not limit the present invention with this certainly
Interest field, the equivalent variations therefore made according to scope of the present invention patent, still belong to the present invention and contained
Scope.
Claims (16)
1. a thickness detection apparatus, it is characterised in that: include that shell, the first magnet, elastic component, magnetic sense
Device, circuit board and conduction capillary, described shell is hollow structure and one end offers window, described first magnetic
The boss that one end of body has outward and formed, described first magnet is slidingly arranged at described shell
In hollow structure, and described boss protrudes out outside described window, and described elastic component is arranged in described shell
In hollow structure, and one end of described elastic component is inconsistent with described first magnet, the other end of described elastic component
Inconsistent with the described circuit board being fixedly connected in described shell, described circuit board be fixedly connected on described outside
Away from the other end of described window in shell, described Magnetic Sensor is arranged on the one side of described circuit board, and
Described Magnetic Sensor and described first magnet is relative and keeps an interval, described conduction capillary to be connected to described electricity
The another side of road plate, and described conduction capillary stretches out outside described shell.
2. thickness detection apparatus as claimed in claim 1, it is characterised in that: described first magnet has a base
Portion, described base portion has the upper bottom surface and bottom surface being parallel to each other, described upper bottom surface has and upwards protrudes out shape
The described boss become, described bottom surface is inconsistent with described elastic component.
3. thickness detection apparatus as claimed in claim 1, it is characterised in that: described first magnet is permanent magnet
Or part is permanent magnet.
4. thickness detection apparatus as claimed in claim 3, it is characterised in that: described permanent magnet employing neodymium iron boron,
SmCo, aluminum nickel cobalt, ferrite, permalloy or silicon steel sheet make, or use metal material, nonmetal
Material makes and is formed at its outer surface plating chromium, ferronickel or the coating of permalloy.
5. thickness detection apparatus as claimed in claim 1, it is characterised in that: described elastic component is column, institute
Stating elastic component, to cover at described Magnetic Sensor outer and the most inconsistent with described circuit board.
6. thickness detection apparatus as claimed in claim 1, it is characterised in that: described Magnetic Sensor is by least two
Bar magnetic sensitive film is made, and described magnetic sensitive film connects into favour stone half by electrode end to end with it
Bridge electric bridge or favour stone full-bridge electric bridge.
7. thickness detection apparatus as claimed in claim 6, it is characterised in that: described magnetic sensitive film be each to
Anisotropy Magnetoresistance amr film, huge magnetic magnetic resistance gmr film, tunnel-effect magnetic resistance tmr film, Hall HALL are imitated
Answer magnetic sensitive film or giant Hall effect thin film.
8. thickness detection apparatus as claimed in claim 6, it is characterised in that: described magnetic sensitive film is in continuously
Continuous or in discontinuity, by deposition, plated film, sputtering mode between the magnetic sensitive film of each discontinuity
The conductive layer formed is electrically connected with.
9. thickness detection apparatus as claimed in claim 1, it is characterised in that: the magnetic susceptibility of described Magnetic Sensor
Direction is parallel with the magnetic line of force direction of described first magnet or becomes an oblique angle.
10. thickness detection apparatus as claimed in claim 1, it is characterised in that: described Magnetic Sensor is with described
Between first magnet be spaced apart space length or be made up of flexible material flexible body interval.
11. thickness detection apparatus as claimed in claim 1, it is characterised in that: also include that one has the second magnetic
The elastic parts of body, described elastic parts is arranged between described elastic component and described circuit board, described elasticity
The end of part contacts with the side of described elastic parts, and the opposite side of described elastic parts is arranged at described electricity
On the plate of road, and described second magnet is relative with described first magnet, described second magnet and described first magnet
The polarity of opposite end identical.
12. thickness detection apparatus as claimed in claim 11, it is characterised in that: described elastic parts also includes
Elastic plate and support, described support offers through hole, and described elastic plate is supported in the one side of described support
And corresponding to described through hole, described second magnet be connected on the side of described elastic plate and with described first magnetic
Body is relative, and the another side of described support is arranged on described circuit board, and described second magnet and described magnetic
Sensor is corresponding.
13. thickness detection apparatus as claimed in claim 12, it is characterised in that: the edge shape of described elastic plate
Becoming supporting part, the center of described elastic plate forms movable part, sets between described supporting part and described movable part
It is equipped with multiple elastic arm, between described movable part, elastic arm and supporting part, is respectively provided with certain gap, described
Gap is distributed with cross structure to connect adjacent movable part, elastic arm and supporting part.
14. thickness detection apparatus as claimed in claim 12, it is characterised in that: described elastic plate passes through metal
Material, metal material oxide, nonmetallic materials, nonmetallic materials oxide or polymer material are made.
15. 1 kinds of thickness detection apparatus manufacture methods, it is characterised in that comprise the steps:
One circuit board is provided, described circuit board is formed with circuit；
One Magnetic Sensor is provided, described Magnetic Sensor is connected on the one side of described circuit board；
Conduction capillary is provided, described conduction capillary is connected on the another side of described circuit board；
There is provided a shell, described shell to be hollow structure and one end offers window；
The first magnet, one end of described first magnet is provided to have the boss that outward is formed, by described the
One magnet is slidingly arranged in the hollow structure of described shell, and makes described boss protrude out outside described window；
One elastic component is provided, described elastic component is arranged in the hollow structure of described shell, and make described bullet
One end of property part is inconsistent with described first magnet；
Described circuit board is fixedly connected in the hollow structure of described shell, and makes described Magnetic Sensor and institute
Stating the first magnet and relatively and keep an interval, the other end making described elastic component is inconsistent with described circuit board,
Described conduction capillary stretches out outside described shell.
16. thickness detection apparatus manufacture methods as claimed in claim 15, it is characterised in that also include as follows
Step:
One support is provided, described support offers a through hole,
One elastic plate is provided, described elastic plate is supported on described support, and make described elastic plate with described
Through hole is corresponding；
One second magnet is provided, described second magnet is connected on the side of described elastic plate, thus is formed
One elastic parts；
Described elastic parts is arranged between described circuit board and described elastic component, and make described first magnet,
Described second magnet, described Magnetic Sensor are corresponding in turn to and all keep certain intervals, and described second each other
Magnet is identical with the polarity of described first magnet opposite end, and the end of described elastic component contacts with described support.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310198864.4A CN104183052B (en) | 2013-05-24 | 2013-05-24 | Thickness detection apparatus and manufacture method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310198864.4A CN104183052B (en) | 2013-05-24 | 2013-05-24 | Thickness detection apparatus and manufacture method thereof |
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| CN104183052A CN104183052A (en) | 2014-12-03 |
| CN104183052B true CN104183052B (en) | 2016-08-17 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110146004B (en) * | 2019-06-13 | 2021-03-30 | 北京科技大学 | A detection device for detecting steel pipes using rare earth permanent magnet materials |
| CN113267118B (en) * | 2021-06-23 | 2022-05-17 | 东南大学 | A kind of semiconductor conductive film thickness on-line test structure and test method |
| CN114160697B (en) * | 2021-11-24 | 2023-09-19 | 厦门华普胜钣金制造有限公司 | Stacking table for plate machining |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101226048A (en) * | 2007-01-17 | 2008-07-23 | 蔡永权 | Method for detecting and identifying thickness of bank note |
| CN201757639U (en) * | 2010-05-24 | 2011-03-09 | 山东新北洋信息技术股份有限公司 | Thickness detection device of sheet medium |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10227607A (en) * | 1997-02-13 | 1998-08-25 | Matsushita Electric Ind Co Ltd | Thickness sensor substrate and device |
| JP2002243406A (en) * | 2001-02-09 | 2002-08-28 | Hosiden Corp | Thickness measuring device and image recording device using the same |
| JP2008032673A (en) * | 2006-05-26 | 2008-02-14 | Nsk Ltd | Method and apparatus for inspecting rolling device component |
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2013
- 2013-05-24 CN CN201310198864.4A patent/CN104183052B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101226048A (en) * | 2007-01-17 | 2008-07-23 | 蔡永权 | Method for detecting and identifying thickness of bank note |
| CN201757639U (en) * | 2010-05-24 | 2011-03-09 | 山东新北洋信息技术股份有限公司 | Thickness detection device of sheet medium |
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