CN201081690Y - Banknote thickness tester - Google Patents
Banknote thickness tester Download PDFInfo
- Publication number
- CN201081690Y CN201081690Y CNU2007201730238U CN200720173023U CN201081690Y CN 201081690 Y CN201081690 Y CN 201081690Y CN U2007201730238 U CNU2007201730238 U CN U2007201730238U CN 200720173023 U CN200720173023 U CN 200720173023U CN 201081690 Y CN201081690 Y CN 201081690Y
- Authority
- CN
- China
- Prior art keywords
- cam
- driving wheel
- paper money
- chip microcomputer
- thickness
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Landscapes
- Inspection Of Paper Currency And Valuable Securities (AREA)
Abstract
The utility model provides a paper money thickness measuring device, wherein the meshing part between a driving wheel and a driven wheel is provided with a paper money channel; the driving wheel is fixed on a bracket; the driven wheel is fixed on a driving arm capable of movably rotating; the driving arm is provided with a magnet steel of which the top part is correspondingly provided with a hall sensor which is in electric connection with a signal analysis circuit; a cam and the driving wheel are coaxially connected and can synchronously rotate; the cam is provided with a convex part; both sides of the cam is provided with an infrared emitting diode and photodiode; infrared rays in the infrared emitting diode and photodiode is just covered by the convex part of the cam; the infrared emitting diode and photodiode is in electric connection with the signal analysis circuit. The device can acquire the correction information needed to correct the measurement error due to the irregular shape of the paper money driving wheel based on the measurement, and can further acquire the high precision measuring result of the thickness of the paper money.
Description
Technical field
The utility model relates to a kind of pick-up unit that is used to detect banknote thickness.
Background technology
For the detection of banknote thickness is a important step in the false proof work of currency.Because banknote thickness is extremely thin, therefore, carry out guiding against false of paper currency or judge whether overlappingly according to the testing result of banknote thickness, the accuracy of detection of pick-up unit is just required particularly height.
A kind of device that is used to detect banknote thickness is disclosed among the China utility model patent ZL200420018350.2.This device is made of lower thickness measuring roller and upper thickness measuring roller engagement.This upper thickness measuring roller stationkeeping, lower thickness measuring roller can move up and down according to passing the bank note of upper and lower thickness measuring roller engagement place.With the lower thickness measuring roller interlock magnetic sheet is arranged.This magnetic sheet and a hall device constitute the magnetic circuit device, by moving of this hall device induction magnetic sheet, to reach the purpose of measuring banknote thickness.
Though the paper money thickness testing apparatus of said structure can reach the purpose that detects banknote thickness,, this device still exists certain problem on accuracy of detection.Because the power wheel (being above-mentioned upper thickness measuring roller and lower thickness measuring roller) of bank note in process of production or can't guarantee in the use that it is shaped as regular circular, and this factor will influence final testing result in actual detected.In view of the height of bank note thickness measuring to accuracy requirement, we are necessary to find a kind of method to proofread and correct because of the caused measuring error of power wheel out-of-shape.
Summary of the invention
Fundamental purpose of the present utility model is to solve above-mentioned existing issue, and the paper money thickness testing apparatus of a kind of recoverable because of the caused measuring error of paper money driving wheel out-of-shape is provided.
The purpose of this utility model is achieved by following technical proposals:
Paper money thickness testing apparatus is characterized in that: the engagement place at driving wheel and engaged wheel is provided with banknote path; This driving wheel is fixed on the support; This engaged wheel is fixed on mobilizable transmission arm; Described transmission arm is provided with magnet steel; Be provided with Hall element in this magnet steel top correspondence; Described Hall element is electrically connected with signal evaluation circuit;
Be coaxially connected with cam with described driving wheel, this cam and driving wheel rotate synchronously; On described cam, be provided with a protuberance; Be provided with a pair of infrared tube in the cam both sides; Infrared ray between the described infrared tube just can be blocked by the protuberance on the cam; This infrared tube is electrically connected with signal evaluation circuit.
Described signal evaluation circuit comprises: operational amplifier, digital regulation resistance, single-chip microcomputer; Operational amplifier is connected between described Hall element and the single-chip microcomputer; Digital regulation resistance is connected between described operational amplifier and the single-chip microcomputer; Described single-chip microcomputer is regulated the datum of described operational amplifier by this digital regulation resistance; Described infrared tube is connected with single-chip microcomputer.
The beneficial effects of the utility model are: designed means for correcting can provide correction because of the required control information of the caused measuring error of paper money driving wheel out-of-shape for single-chip microcomputer, so that obtain high-precision banknote thickness testing result.
Description of drawings
Fig. 1 is the structural drawing of paper money thickness testing apparatus;
Fig. 2 is the circuit diagram of signal evaluation circuit;
Fig. 3 is the front view of means for correcting;
Fig. 4 is the side view of means for correcting.
Embodiment
Below in conjunction with drawings and Examples the utility model is further described.
As shown in Figure 1, be provided with driving wheel 1 and the engaged wheel 2 that is meshed in the paper money thickness testing apparatus of the present utility model.In the engagement place of driving wheel 1 and engaged wheel 2 is banknote path 5.Driving wheel 1 is fixed on the support, and at the uniform velocity rotates (not shown) by driven by motor.Engaged wheel 2 is fixed in one on the transmission arm 6 of stationary shaft swing.When engaged wheel 2 moves, can cause the swing of transmission arm 6 accordingly.Be provided with magnet steel 3 on transmission arm 6, this magnet steel 3 produces magnetic field around it.Be provided with Hall element 4 in magnet steel 3 top correspondences, this Hall element 4 can be responded to the surrounding magnetic field Strength Changes and produce corresponding electrical signal of reaction.Hall element 4 sends to signal evaluation circuit with the electrical signal of reaction that is produced, to analyze the thickness of bank note.
When bank note passed through the engagement place of driving wheel 1 and engaged wheel 2 with banknote path 5, engaged wheel 2 moved up and down with the banknote thickness variation, and then drove magnet steel 3 motions on the transmission arm 6.Hall element 4 produces corresponding electrical signal of reaction by the caused change of magnetic field strength of inductive magnetic steel 3 motions.Signal evaluation circuit is according to analyzing the thickness that this electrical signal of reaction calculates bank note.
Fig. 2 is the circuit diagram of above-mentioned signal evaluation circuit.The in-phase input end of above-mentioned Hall element 4 concatenation operation amplifiers 10, the electrical signal of reaction of its output is input single-chip microcomputer 12 after operational amplifier 10 amplifies.This single-chip microcomputer draws the thickness of bank note according to the calculated signals of being imported.In addition, between the inverting input of single-chip microcomputer 12 and operational amplifier 10, be connected to digital regulation resistance 11, form a feedback control circuit.This digital regulation resistance is regulated operational amplifier end of oppisite phase datum by Single-chip Controlling.When pick-up unit just powered on, the resulting electric signal of single-chip microcomputer was the reference signal of no bank note.At this moment, single-chip microcomputer is by the datum of control figure potentiometer adjusting operational amplifier inverting input, and the signal that single-chip microcomputer is gathered reaches desired effects.
In addition, pick-up unit of the present utility model is that the measuring accuracy that prevents banknote thickness is subjected to driving wheel 1 in irregular shape the influence, also is provided with means for correcting specially.Shown in Fig. 3,4, be coaxially connected with cam 7 with driving wheel 1, this cam 7 rotates synchronously with driving wheel 1.On cam 7, be provided with a protuberance 8.Be provided with a pair of infrared tube 9 in these cam 7 both sides, be respectively transmitting terminal and receiving end.Infrared ray between the infrared tube 9 just can be blocked by the protuberance on the cam 78.This infrared tube 9 is electrically connected with single-chip microcomputer, and single-chip microcomputer calculates the cam information that driving wheel rotates a circle according to the infrared tube situation of blocking.
When pick-up unit just powers on, it is start signal record driving wheel 1 zero load its change in electric of receiving that rotates a circle that single-chip microcomputer blocks infrared ray with protuberance 8, promptly by the caused thickness change information of driving wheel 1 out-of-shape, and as the reference signal of proofreading and correct.When measuring banknote thickness, single-chip microcomputer is proofreaied and correct measured banknote thickness in conjunction with this correction reference information and cam information, to obtain high-precision banknote thickness information.
Claims (2)
1. paper money thickness testing apparatus, it is characterized in that: the engagement place at driving wheel and engaged wheel is provided with banknote path; This driving wheel is fixed on the support; This engaged wheel is fixed on mobilizable transmission arm; Described transmission arm is provided with magnet steel; Be provided with Hall element in this magnet steel top correspondence; Described Hall element is electrically connected with signal evaluation circuit;
Be coaxially connected with cam with described driving wheel, this cam and driving wheel rotate synchronously; On described cam, be provided with a protuberance; Be provided with a pair of infrared tube in the cam both sides; Infrared ray between the described infrared tube just can be blocked by the protuberance on the cam; This infrared tube is electrically connected with signal evaluation circuit.
2. paper money thickness testing apparatus as claimed in claim 1 is characterized in that: described signal evaluation circuit comprises: operational amplifier, digital regulation resistance, single-chip microcomputer; Operational amplifier is connected between described Hall element and the single-chip microcomputer; Digital regulation resistance is connected between described operational amplifier and the single-chip microcomputer; Described single-chip microcomputer is regulated the datum of described operational amplifier by this digital regulation resistance; Described infrared tube is connected with single-chip microcomputer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201730238U CN201081690Y (en) | 2007-09-07 | 2007-09-07 | Banknote thickness tester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201730238U CN201081690Y (en) | 2007-09-07 | 2007-09-07 | Banknote thickness tester |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201081690Y true CN201081690Y (en) | 2008-07-02 |
Family
ID=39615359
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201730238U Expired - Fee Related CN201081690Y (en) | 2007-09-07 | 2007-09-07 | Banknote thickness tester |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201081690Y (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101158569B (en) * | 2007-11-16 | 2010-06-09 | 中钞长城金融设备控股有限公司 | Paper money thickness testing apparatus |
| CN101996437A (en) * | 2009-08-11 | 2011-03-30 | 上海古鳌电子机械有限公司 | Multipoint contact sensor paper money thickness measuring device |
| CN102222383A (en) * | 2010-04-16 | 2011-10-19 | 上海古鳌电子科技股份有限公司 | Multi-point paper money device for measuring micro-thickness changes and measurement method thereof |
| CN102306417A (en) * | 2011-07-18 | 2012-01-04 | 昆山古鳌电子机械有限公司 | Multi-point type paper money thickness measuring device applied for integrated paper money counting and binding machine |
| CN101799868B (en) * | 2010-02-01 | 2012-05-30 | 南京中钞长城金融设备有限公司 | Machine vision inspection method for paper money |
| EP3081897A4 (en) * | 2013-12-12 | 2016-12-07 | Grg Banking Equipment Co Ltd | Laminated dielectric thickness detection device and method |
| CN106296970A (en) * | 2016-08-11 | 2017-01-04 | 威海华菱光电股份有限公司 | The detecting system of thin film and detection method |
-
2007
- 2007-09-07 CN CNU2007201730238U patent/CN201081690Y/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101158569B (en) * | 2007-11-16 | 2010-06-09 | 中钞长城金融设备控股有限公司 | Paper money thickness testing apparatus |
| CN101996437A (en) * | 2009-08-11 | 2011-03-30 | 上海古鳌电子机械有限公司 | Multipoint contact sensor paper money thickness measuring device |
| CN101799868B (en) * | 2010-02-01 | 2012-05-30 | 南京中钞长城金融设备有限公司 | Machine vision inspection method for paper money |
| CN102222383A (en) * | 2010-04-16 | 2011-10-19 | 上海古鳌电子科技股份有限公司 | Multi-point paper money device for measuring micro-thickness changes and measurement method thereof |
| CN102306417A (en) * | 2011-07-18 | 2012-01-04 | 昆山古鳌电子机械有限公司 | Multi-point type paper money thickness measuring device applied for integrated paper money counting and binding machine |
| EP3081897A4 (en) * | 2013-12-12 | 2016-12-07 | Grg Banking Equipment Co Ltd | Laminated dielectric thickness detection device and method |
| US9672679B2 (en) | 2013-12-12 | 2017-06-06 | Grg Banking Equipment Co., Ltd. | Device for detecting thickness of sheet medium and method thereof |
| CN106296970A (en) * | 2016-08-11 | 2017-01-04 | 威海华菱光电股份有限公司 | The detecting system of thin film and detection method |
| CN106296970B (en) * | 2016-08-11 | 2022-05-20 | 威海华菱光电股份有限公司 | Detection system and detection method of thin film |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101158569B (en) | Paper money thickness testing apparatus | |
| CN201081690Y (en) | Banknote thickness tester | |
| CN101394146B (en) | Parameter recognition system and method for DC electric motor speed control object | |
| CN101140193B (en) | Upgraded balancing machine for vehicle wheels | |
| CN101537445B (en) | Device and method for coiled material centering and diameter measuring | |
| CN100545620C (en) | The method of testing that is used for portable elevator speed limiter testing device | |
| CN102589469B (en) | Device for detecting profile of planar conjugate cam and control method thereof | |
| CN2672618Y (en) | Device for detecting paper note adhesive | |
| CN108375736A (en) | A kind of Testing Platform convenient for fixed new energy motor | |
| CN107917681A (en) | High voltage isolator angle of eccentricity measuring device and method based on toothed belt transmission | |
| CN203849120U (en) | Combined hardness measurement instrument | |
| EP2682335A1 (en) | Bicycle pedaling force detection apparatus production method and apparatus made with the method thereof | |
| CN204116375U (en) | A kind of device for testing elevator traction machine rotating speed | |
| KR20110095070A (en) | Sensing apparatus for pedal effort | |
| CN202372102U (en) | Aligning force and aligning displacement detector for separable angular contact ball bearing | |
| CN100359285C (en) | Micro displament dynamic deformation detection calibrating device and its method | |
| CN204215472U (en) | A kind of banknote thickness gauge with correcting code-disc | |
| CN100526482C (en) | High-precision automatic coil position adjusting device and method | |
| CN105155159A (en) | Broken thread detection device and method | |
| CN213336033U (en) | Linear displacement sensor | |
| CN202229866U (en) | Static torque measuring and detecting instrument | |
| CN202090012U (en) | Integral detection device for height of oxygen lance and tightness of steel wire rope of oxygen lance | |
| CN203148671U (en) | Movable type anti-lock brake system (ABS) gear detecting device | |
| CN209514009U (en) | A kind of linear motor characteristic test device | |
| CN207180586U (en) | Vehicle pedal stroke dynamic measuring device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080702 |