CN101527057A - Magnetic detection device and equipment - Google Patents
Magnetic detection device and equipment Download PDFInfo
- Publication number
- CN101527057A CN101527057A CN200910038381A CN200910038381A CN101527057A CN 101527057 A CN101527057 A CN 101527057A CN 200910038381 A CN200910038381 A CN 200910038381A CN 200910038381 A CN200910038381 A CN 200910038381A CN 101527057 A CN101527057 A CN 101527057A
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- Prior art keywords
- pinch roller
- magnetic
- magnetic detection
- detection device
- circular column
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- 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
- G07D7/04—Testing magnetic properties of the materials thereof, e.g. by detection of magnetic imprint
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Inspection Of Paper Currency And Valuable Securities (AREA)
Abstract
The embodiment of the invention discloses a magnetic detection equipment and a magnetic detection device, comprising a magnetic sensor and a press wheel component; magnetic detection is carried out by transmitting magnetic objects through a transmission channel between the magnetic sensor and the press wheel component; the press wheel component comprises a driving roller and an elastic cylindrical press wheel which is sleeved on the driving roller; and the surface of the elastic cylindrical press wheel is a threaded flexible deformed narrow strip. By implementing the embodiment of the invention, the anti-counterfeit capability and the stability of bank note discrimination are improved.
Description
Technical field
The present invention relates to the magnetic detection field, relate in particular to a kind of magnetic detection device and equipment.
Background technology
Existing automatic teller machine (Automatic Teller Machine, ATM) and in the finance device such as paper money counter the true and false identification and detection device of bank note is all arranged, and the magnetic that is primarily aimed at note surface printing ink distributes and the magnetic code of magnetic security line detects.But at present since the magnetic of the magnetic ink of note surface a little less than, the voltage magnitude of general direct detection is all at microvolt level (about about 50 μ v), in the process of using, all need process several ten thousand and even hundreds of thousands amplification doubly, so detecting element such as magnetic sensor and the slight distance variation of to be measured of bank note class all can cause the fluctuation of useful signal amplitude very greatly in the testing process, when signal is amplified, noise signal also obtains the amplification with multiple, small piezoelectric effect etc. all can cause very big noise, thereby brings interference and difficulty to identification.In addition in transmission course bank note because influences such as fold and air pressures, being difficult to be attached to fully magnetic sensor in identification and detection device detects on the surface, thereby the signal to noise ratio (S/N ratio) of magnetic signal is less, the amplitude of useful signal is less, so be difficult to the magnetic distribution or the magnetic code of genuine notes are accomplished quantitative detection in the magnetic anti-counterfeit of bank note detects.
Often increase pinch roller in the existing identification and detection device on the top of magnetic sensor, be beneficial on the detection surface that bank note is attached to magnetic sensor, dispose live-roller as mentioning on the magnetic sensor relative position among the Chinese patent publication number CN1818978A, and also mention among the Chinese patent publication number CN200993799Y some magnetic head pinch rollers evenly are set, but in the application of reality, often be difficult to realize fine detection to the bank note magnetic signal on the correspondence position of magnetic sensor.Since the magnetic signals such as magnetic ink of note surface a little less than, Magnetic Sensor generally has very high enlargement factor, sensitivity is higher, the configuration live-roller easily causes bigger piezoelectric effect noise on the magnetic sensor relative position.
Summary of the invention
The invention provides a kind of magnetic detection device and equipment, solved faint to the magnetic ink that is similar to bank note, bill and safety line magnetic coding etc., signal to noise ratio (S/N ratio) was little when sensitive signal detected, the problem that signal amplitude is little can improve the discriminating anti-counterfeit capability and the stability of bank note.
The invention provides a kind of magnetic detection device, comprise magnetic sensor and pinch roller assembly, carry out magnetic detection by the magnetic object of transmission channel transport tape between described magnetic sensor and described pinch roller assembly, described pinch roller assembly comprises a live-roller and the Elastic Circular column pinch roller that is enclosed within on the described live-roller, and described Elastic Circular column pinch roller surface is a screw-shaped plastic deformation fillet.
Accordingly, the present invention also provides a kind of magnetic detection equipment, have the inter-agency magnetic detection device that is provided with of magnetisable material in the be magnetic mechanism of material of input tape with output, described magnetic detection device comprises magnetic sensor and pinch roller assembly, carry out magnetic detection by the object that is magnetic of the transmission channel transport tape between described magnetic sensor and described pinch roller assembly, described pinch roller assembly comprises a live-roller and the Elastic Circular column pinch roller that is enclosed within on the described live-roller, and described Elastic Circular column pinch roller surface is a screw-shaped plastic deformation fillet.
When detection has the magnetic object by described transmission channel, compress this by the plastic deformation arrowband on the pinch roller assembly and have the magnetic object on magnetic sensor, its noise signal by the magnetic sensor that piezoelectric effect causes is less, can guarantee simultaneously that the useful signal amplitude increases, differentiate anti-counterfeit capability and stability thereby improve bank note.
Description of drawings
Fig. 1 shows the perspective view of the magnetic detection equipment in the embodiment of the invention;
Fig. 2 shows the pinch roller assembly structural representation in the embodiment of the invention;
Fig. 3 shows the front view of the magnetic detection equipment in the embodiment of the invention;
Fig. 4 shows the eccentric governor motion front view that has in the embodiment of the invention;
Fig. 5 shows and has another front view of eccentric governor motion in the embodiment of the invention.
Embodiment
The embodiment of the invention provides a kind of magnetic detection device and equipment, solved faint to the magnetic ink that is similar to bank note, bill and safety line magnetic coding etc., signal to noise ratio (S/N ratio) was little when sensitive signal detected, the problem that signal amplitude is little can improve the discriminating anti-counterfeit capability and the stability of bank note.
Describe specific embodiment in the embodiment of the invention in detail below in conjunction with accompanying drawing.
Fig. 1 is the perspective view of the magnetic detection equipment in the embodiment of the invention, this equipment comprises magnetic sensor 30 and pinch roller assembly, carry out magnetic detection by the magnetic object of transmission channel transport tape between this magnetic sensor 30 and pinch roller assembly (being that example describes with bank note 5) here, this pinch roller assembly 20 comprises a live-roller 8 and the Elastic Circular column pinch roller 20 that is enclosed within on the live-roller 8, and Elastic Circular column pinch roller 20 surfaces are screw-shaped plastic deformation fillet.
Fig. 2 shows the pinch roller assembly structural representation in the embodiment of the invention, this pinch roller assembly comprises Elastic Circular column pinch roller 20 and live-roller 8, wherein: the high-abrasive material of Elastic Circular column pinch roller 20 can be fluororubber (FPM), fluorosioloxane rubber (FMVQ), chlorosulfonated polyethylene rubber (CSM), be preferably polyurethane (PU), the durometer level of Elastic Circular column pinch roller 20 is carried out value between Shao Shi 35-43 degree in addition.By implementing the pinch roller assembly in the embodiment of the invention, can cover 30 sensing ranges of magnetic sensor, Elastic Circular column pinch roller 20 surfaces have screw-like (or claiming the tooth shape) fillet even, tiny interval simultaneously, and the optimum width of the flexible fillet of the screw-like on its Elastic Circular column pinch roller 20 surfaces is 2mm.When bank note class element to be measured is transmitted through magnetic sensor 30 surfaces, because the amplitude of the sensitive signal on process magnetic sensor 30 surfaces is enough big, signal to noise ratio (S/N ratio) is big, and can not produce omission, and sensitive signals such as its surperficial magnetic ink, safety line can be detected by fine.In addition because Elastic Circular column pinch roller 20 surfaces have evenly spaced screw-like (or claiming the tooth shape) fillet, when the bank note transmission is passed through, only contact with the rubber-like fillet, when being under pressure, fillet not only shrinks deformation in vertical (vertical central) direction, and laterally also can run-off the straight be out of shape on (along the axle center), thereby when guaranteeing that bank note class element to be measured and magnetic sensor 30 are pressed close to, make that the noise signal that is caused by piezoelectric effect etc. is less, stability better, and guaranteed bigger signal to noise ratio (S/N ratio) and precision; Simultaneously because elastic thread shape fillet can compress the local location that bank note is waited for measuring sensor preferably, so effect is preferably also arranged for the magnetic signal detection of the residual old bank note of soft, fold.
Need to prove, comprise also in the magnetic detection equipment shown in Fig. 1 having eccentric governor motion 1 that this has the distance that eccentric governor motion 1 is used for regulating by the upper-lower position of regulating pinch roller assembly Elastic Circular column pinch roller 20 and 30 transmission channels of magnetic sensor.This has eccentric governor motion regulates according to the type of the paper by transmission channel, and this has about eccentric wheel in the eccentric governor motion around the main core anglec of rotation is 0 to spend between 30 degree.
Fig. 3 is the front view of magnetic detection equipment among Fig. 1, and in conjunction with explanation magnetic detection equipment among Fig. 1 and Fig. 2, this has eccentric governor motion 1 and comprises left-right adjusting mechanism 10, Cam plate 2 and bearing 3 here; Transmission channel is made of transmission channel plate 40 up and down.Fig. 4 and Fig. 5 show the front view that has eccentric governor motion 1 in the embodiment of the invention, and it shows and has eccentric governor motion 1, Cam plate 2, bearing 3 and live-roller 8, and wherein O is the axle center of live-roller 8, and O ' is the axle center of Cam plate.
Need to prove, here regulate Elastic Circular column pinch roller 20 and magnetic sensor 30 to suitable distance by the anglec of rotation of regulating the eccentric axle center of eccentric wheel, can check the amplitude and the signal to noise ratio of the output signal of sensitive elements such as magnetic sensor by output unit such as oscillograph etc., thereby determine the optimal value of its distance.This has distance and scale mark Cam plate 2 on of eccentric governor motion 1 by off-centre and reaches fine setting and survey the purpose that detects distance, thereby obtains bigger signal to noise ratio (S/N ratio), is convenient to recognizer and detects.By rotating around eccentric main core O, the axle center O ' of its Cam plate is just along with changing, when about eccentric wheel when eccentric, take turns around the main core rotating eccentricity, just can mainly adjust the upper and lower displacement in eccentric axle center, suppose that eccentric throw is eccentric a left, be θ around the main core anglec of rotation, then excentric shaft on upper-lower position, change apart from l=a * sin θ, this moment, horizontal level changed distance lambda=a-a * cos θ.When θ=30 °,
λ=a-a * cos θ ≈ 0.13 α, when if the eccentric adjusting angle θ of setting is ± 30 °, then the upper-lower position of excentric shaft then the upper-lower position of excentric shaft change distance/be ± 0.5 α, be that total adjustable range is an eccentric throw, and changing distance lambda=± 0.13 α at the horizontal level of this range of adjustment inner eccentric shaft, this is less with respect to upper-lower position.And in actual use, all be capable again inching after in advance installing, so the θ angle is less,, the horizontal level of excentric shaft variation distance lambda ignores so can being similar to.According to range, roughly can carry out scale mark simultaneously, thereby realize that easily Elastic Circular column pinch roller and sensitive element detect the fine adjustment of distance Cam plate.
In actual application, can regulate the distance of transmission channel between cylindric pinch roller and magnetic sensor according to the type that has the magnetic object, usually the thickness according to bank note to be detected arrives this distance adjustment about about 0.2mm, in conjunction with normal transmission detected state, whether need to detect the actual detected gap of this moment suitable, as signal to noise ratio (S/N ratio), whether amplitude meets the demands, its can be by oscillograph Direct observation measured signal quality, also can by optical testing instrument detect regulate Elastic Circular column pinch roller 20 and 30 transmission channels of magnetic sensor actual range whether in theoretical scope.If do not meet the demands, then the fine adjustment anglec of rotation that has an eccentric governor motion 1 satisfies actual detection requirement.
Need to prove, it is mainly used in magnetic distribution of detection upper sheet surface printing ink and magnetic code of magnetic security line or the like this magnetic detection equipment, it also can be applied in the proof procedure of coin, mainly be arranged on the advancing between the cash dispensing port of banknote recognition device of ATM, be used for magnetic security line that detects by coin or the like.In concrete enforcement, this Elastic Circular column pinch roller 20 also has good effect for the detection of safety line magnetic such as bank note coding.Because the interval of (or claiming the tooth shape) fillet on Elastic Circular column pinch roller 20 surfaces is less, the width that is about the twice safety line, and the screw-like fillet can be at bank note horizontal direction inclination and distortion, even if the bank note of fold is during by magnetic sensor and pinch roller, the safety line part also can well be detected, and magnetic coded signal amplitude etc. also can accurately obtain confirming.
In sum, screw-shaped plastic deformation fillet on this Elastic Circular column pinch roller can make banknote class determinand surface better and the detection surface of responsive detecting element such as magnetic sensor approaching, make the signal amplitude of printing ink, metal safety line of banknote surface bigger, and can not produce too big noise signal, thereby discern and detect useful signal preferably.Have the upper-lower position that eccentric mechanism is adjusted Elastic Circular column pinch roller by use, thereby adjust the distance that responsive detecting elements such as banknote class thing to be detected surface and magnetic sensor detect the surface, fix so that responsive detecting element such as banknote surface and Magnetic Sensor detects the distance on surface, thereby satisfy the demand of dissimilar note detection.Faint sensitive signals such as the magnetic ink that is similar on paper, the bill or safety line coding be can accurately detect by magnetic detection equipment in the embodiment of the invention, thereby the discriminating anti-counterfeit capability and the stability of bank note improved.
Above disclosed is a kind of preferred embodiment of the present invention only, can not limit the present invention's interest field certainly with this, and therefore the equivalent variations of doing according to claim of the present invention still belongs to the scope that the present invention is contained.
Claims (10)
1, a kind of magnetic detection device, comprise magnetic sensor and pinch roller assembly, carry out magnetic detection by the magnetic object of transmission channel transport tape between described magnetic sensor and described pinch roller assembly, it is characterized in that, described pinch roller assembly comprises a live-roller and the Elastic Circular column pinch roller that is enclosed within on the described live-roller, and described Elastic Circular column pinch roller surface is a screw-shaped plastic deformation fillet.
2, magnetic detection device as claimed in claim 1 is characterized in that, the hardness of described Elastic Circular column pinch roller is that Shao Shi 35 spends between Shao Shi 43 degree.
3, magnetic detection device as claimed in claim 1 is characterized in that, described screw-shaped plastic deformation fillet is tiny at interval and be evenly distributed in described Elastic Circular column pinch roller surface.
4, magnetic detection device as claimed in claim 1 is characterized in that, described Elastic Circular column is pressed and is high abrasion resisting material.
5, magnetic detection device as claimed in claim 4 is characterized in that, described high abrasion resisting material is fluororubber or fluorosioloxane rubber or chlorosulfonated polyethylene rubber or polyurethane.
6, as each described magnetic detection device of claim 1 to 5, it is characterized in that, described pinch roller assembly also comprises and has eccentric governor motion, have the upper-lower position that eccentric governor motion is regulated described pinch roller assembly by described, thereby regulate the distance of transmission channel between described Elastic Circular column pinch roller and described magnetic sensor.
7, magnetic detection device as claimed in claim 6 is characterized in that, describedly has eccentric governor motion and regulates according to the type of the paper by described transmission channel.
8, magnetic detection device as claimed in claim 6 is characterized in that, about the described eccentric wheel that has in the eccentric governor motion around the main core anglec of rotation be 0 spend to 30 the degree between.
9, a kind of magnetic detection equipment, it is characterized in that, have the inter-agency magnetic detection device that is provided with of magnetisable material in the be magnetic mechanism of material of input tape with output, described magnetic detection device comprises magnetic sensor and pinch roller assembly, carry out magnetic detection by the object that is magnetic of the transmission channel transport tape between described magnetic sensor and described pinch roller assembly, described pinch roller assembly comprises a live-roller and the Elastic Circular column pinch roller that is enclosed within on the described live-roller, and described Elastic Circular column pinch roller surface is a screw-shaped plastic deformation fillet.
10, magnetic identification equipment as claimed in claim 9, it is characterized in that, described pinch roller assembly also comprises and has eccentric governor motion, has a distance that eccentric governor motion is regulated transmission channel between described Elastic Circular column pinch roller and described magnetic sensor by described.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910038381A CN101527057A (en) | 2009-04-02 | 2009-04-02 | Magnetic detection device and equipment |
| PCT/CN2010/070909 WO2010111904A1 (en) | 2009-04-02 | 2010-03-08 | Magnetic detection device and equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910038381A CN101527057A (en) | 2009-04-02 | 2009-04-02 | Magnetic detection device and equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101527057A true CN101527057A (en) | 2009-09-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910038381A Pending CN101527057A (en) | 2009-04-02 | 2009-04-02 | Magnetic detection device and equipment |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN101527057A (en) |
| WO (1) | WO2010111904A1 (en) |
Cited By (11)
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| WO2010111904A1 (en) * | 2009-04-02 | 2010-10-07 | 广州广电运通金融电子股份有限公司 | Magnetic detection device and equipment |
| CN104077831A (en) * | 2014-07-18 | 2014-10-01 | 广州广电运通金融电子股份有限公司 | Magnetic detection device for valuable files |
| CN104484938A (en) * | 2015-01-08 | 2015-04-01 | 广州广电运通金融电子股份有限公司 | Valuable document magnetic information detection device and method for tuning magnetic head gap |
| CN105069892A (en) * | 2015-07-30 | 2015-11-18 | 深圳怡化电脑股份有限公司 | Medium identification device |
| CN105548921A (en) * | 2015-12-03 | 2016-05-04 | 深圳怡化电脑股份有限公司 | Method and device of determination of bearing containing magnetism |
| CN106291416A (en) * | 2016-07-22 | 2017-01-04 | 深圳市佳顺智能机器人股份有限公司 | A kind of novel magnetic stripe automatic detection device |
| CN106815930A (en) * | 2017-03-02 | 2017-06-09 | 浙江万联电器有限公司 | A kind of adjusting means of currency feeding mechanism |
| CN107064831A (en) * | 2017-03-07 | 2017-08-18 | 深圳怡化电脑股份有限公司 | The choosing method and its system of a kind of magnetic gaps |
| CN107636739A (en) * | 2017-04-21 | 2018-01-26 | 深圳怡化电脑股份有限公司 | Deposit module, pick-up portion and cash recycling system |
| WO2018165828A1 (en) * | 2017-03-13 | 2018-09-20 | 深圳怡化电脑股份有限公司 | Gap adjustment mechanism and method, and paper currency recognition apparatus |
| CN111554031A (en) * | 2020-05-09 | 2020-08-18 | 聚龙股份有限公司 | Paper money discriminating apparatus and system |
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| JP2003294484A (en) * | 2002-04-05 | 2003-10-15 | Hitachi Metals Ltd | Magnetic linear encoder |
| JP4112997B2 (en) * | 2003-01-29 | 2008-07-02 | 株式会社東芝 | Magnetic detector |
| CN2638155Y (en) * | 2003-08-04 | 2004-09-01 | 张乃嘉 | Vertical paper money counting machine driving device |
| CN2638154Y (en) * | 2003-08-04 | 2004-09-01 | 张乃嘉 | Vertical paper money counting machine magnetic signal collecting device |
| CN2715256Y (en) * | 2004-08-30 | 2005-08-03 | 长沙高新技术产业开发区银佳科技有限公司 | Vertical money counter |
| JP4645428B2 (en) * | 2005-12-01 | 2011-03-09 | 富士電機リテイルシステムズ株式会社 | Bill validator |
| CN101105840B (en) * | 2007-08-04 | 2010-09-22 | 杨友靠 | Hybrid type paper money counter |
| CN201084188Y (en) * | 2007-08-04 | 2008-07-09 | 杨友靠 | Novel mixed cash counter |
| CN101527057A (en) * | 2009-04-02 | 2009-09-09 | 广州广电运通金融电子股份有限公司 | Magnetic detection device and equipment |
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2009
- 2009-04-02 CN CN200910038381A patent/CN101527057A/en active Pending
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2010
- 2010-03-08 WO PCT/CN2010/070909 patent/WO2010111904A1/en active Application Filing
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010111904A1 (en) * | 2009-04-02 | 2010-10-07 | 广州广电运通金融电子股份有限公司 | Magnetic detection device and equipment |
| CN104077831A (en) * | 2014-07-18 | 2014-10-01 | 广州广电运通金融电子股份有限公司 | Magnetic detection device for valuable files |
| CN104484938A (en) * | 2015-01-08 | 2015-04-01 | 广州广电运通金融电子股份有限公司 | Valuable document magnetic information detection device and method for tuning magnetic head gap |
| CN105069892A (en) * | 2015-07-30 | 2015-11-18 | 深圳怡化电脑股份有限公司 | Medium identification device |
| CN105548921B (en) * | 2015-12-03 | 2018-06-19 | 深圳怡化电脑股份有限公司 | A kind of method and device of the determining bearing containing magnetic |
| CN105548921A (en) * | 2015-12-03 | 2016-05-04 | 深圳怡化电脑股份有限公司 | Method and device of determination of bearing containing magnetism |
| CN106291416A (en) * | 2016-07-22 | 2017-01-04 | 深圳市佳顺智能机器人股份有限公司 | A kind of novel magnetic stripe automatic detection device |
| CN106815930A (en) * | 2017-03-02 | 2017-06-09 | 浙江万联电器有限公司 | A kind of adjusting means of currency feeding mechanism |
| CN107064831A (en) * | 2017-03-07 | 2017-08-18 | 深圳怡化电脑股份有限公司 | The choosing method and its system of a kind of magnetic gaps |
| WO2018165828A1 (en) * | 2017-03-13 | 2018-09-20 | 深圳怡化电脑股份有限公司 | Gap adjustment mechanism and method, and paper currency recognition apparatus |
| CN107636739A (en) * | 2017-04-21 | 2018-01-26 | 深圳怡化电脑股份有限公司 | Deposit module, pick-up portion and cash recycling system |
| WO2018191934A1 (en) * | 2017-04-21 | 2018-10-25 | 深圳怡化电脑股份有限公司 | Deposit module, service department, and cash recycling machine |
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Also Published As
| Publication number | Publication date |
|---|---|
| WO2010111904A1 (en) | 2010-10-07 |
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Application publication date: 20090909 |