CN2369296Y - Portable false identifier - Google Patents
Portable false identifier Download PDFInfo
- Publication number
- CN2369296Y CN2369296Y CN99225809U CN99225809U CN2369296Y CN 2369296 Y CN2369296 Y CN 2369296Y CN 99225809 U CN99225809 U CN 99225809U CN 99225809 U CN99225809 U CN 99225809U CN 2369296 Y CN2369296 Y CN 2369296Y
- Authority
- CN
- China
- Prior art keywords
- electric signal
- sensor
- ultraviolet
- emission device
- portable
- 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
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- Inspection Of Paper Currency And Valuable Securities (AREA)
- Photometry And Measurement Of Optical Pulse Characteristics (AREA)
Abstract
The utility model provides a portable false identifier, which is mainly composed of an ultraviolet emitter, a recognition sensor, an alarm device and associated circuits, wherein, the recognition sensor is arranged near the ultraviolet emitter; ultraviolet light emitted by the ultraviolet emitter is received by the recognition sensor after transmitted by the bank note and is converted into a recognition electric signal. The utility model is characterized in that a reference sensor (4) is also arranged near the ultraviolet emitter (1), and receives ultraviolet light (3) directly emitted by the ultraviolet emitter (1) and converts the ultraviolet light (3) to a reference electric signal. The reference electrical signal is compared with the recognition electrical signal, a difference electrical signal is obtained, and then the alarm device performs a relevant prompt according to the difference electrical signal.
Description
The utility model relates to the instrument of the similar articles true and falses such as a kind of identification note, VAT invoice, securities.
Existing paper banknote identifier is to make according to the fluorescence reflection characteristic of bank note, mainly by the ultraviolet emission device, identification sensor, warning device and interlock circuit are formed, the ultraviolet light that penetrates when the ultraviolet emission device is reflexed to identification sensor by the bank note that is detected, and convert electric signal to through identification sensor, the strong and weak true and false of also therefore judging bank note that can reflect the reflection of bank note fluorescence according to the size of this electric signal, true and false result sends prompting by warning device, but this fake-identifying instrument causes the ultraviolet light grow of ultraviolet emission device or dies down when the unstable i.e. meeting strong or on the weak side partially of power supply, and electric signal that identification sensor is exported fluctuateed up and down and finally can influence the order of accuarcy of judgement when this instability of power supply can make fake-identifying instrument test same bank note.
The purpose of this utility model provides a kind of portable fake-identifying instrument can eliminate the foregoing error in judgement that causes because of the power supply instability.
To achieve these goals, technical solution of the present utility model is such: a kind of portable fake-identifying instrument, mainly by the ultraviolet emission device, identification sensor, warning device and interlock circuit are formed, identification sensor is arranged near the ultraviolet emission device, the ultraviolet light that the ultraviolet emission device sends is identified sensor and receives and convert to the identification electric signal after the bank note reflection, wherein near the ultraviolet emission device, also be provided with a reference sensor, reference sensor receives the ultraviolet light that directly sends from the ultraviolet emission device and converts reference electrical signal to, this reference electrical signal and identification electric signal relatively draw a difference electric signal, and warning device is made corresponding prompt according to the difference electric signal.
Because in the above-mentioned technical solution, other is provided with a reference sensor, when power is strong partially or on the weak side, reference signal diminishes with discerning electric signal or all becoming greatly or all, the difference electric signal is then constant substantially, thereby can reflect the power of bank note fluorescence reflection more exactly, and further judge and the true and false of bank note realize the purpose that the identification note true and false is not influenced by power supply drift according to two difference electric signal that sensor drew.
Below in conjunction with drawings and Examples the utility model is described in further detail:
Fig. 1 is the working state schematic representation of portable fake-identifying instrument provided by the utility model.
Fig. 2 is that the A of Fig. 1 is to view.
Wherein: 1, ultraviolet emission device; 2, identification sensor; 3, ultraviolet light; 4, reference sensor; 5, bank note; 6, small-sized calculating road.
As shown in the figure, identification sensor 2 and reference sensor are located at the both sides of ultraviolet emission device 1 respectively, when portable fake-identifying instrument is in running order, identification sensor 2 receives that send and through the ultraviolet light 3 of bank note 5 reflections and convert the identification electric signal to by ultraviolet emission device 1, reference sensor 4 receives by ultraviolet emission device 1 and directly penetrates the ultraviolet light 3 that comes and convert reference electrical signal to, compare and to obtain a difference electric signal by reference electrical signal and identification electric signal, this signal illustrates more then that fluorescent emission is very weak and judges that the bank note of surveying is counterfeit money, if then be genuine note on the contrary, the size of difference electric signal is judged and can be made warning device make prompting at last by relatively drawing with a setting electric signal.This portable identifier can in like manner detect similar articles such as VAT invoice except that bank note, securities, wherein sets the size of electric signal and can make corresponding setting according to different situations.
In order to further facilitate the user, portable fake-identifying instrument can be designed to be similar to the shape of telephone microphone, and a slim calculator 6 can also be set at the back side of portable false distinguishing formula.This portable fake-identifying instrument is suitable for using in places such as taxi, motorbuses, brings many convenience to people.
Claims (2)
1, a kind of portable fake-identifying instrument, mainly by the ultraviolet emission device, identification sensor, warning device and interlock circuit are formed, identification sensor is arranged near the ultraviolet emission device, the ultraviolet light that the ultraviolet emission device sends is identified sensor and receives and convert to the identification electric signal after the bank note reflection, it is characterized in that: near ultraviolet emission device (1), also be provided with a reference sensor (4), reference sensor (4) receives the ultraviolet light (3) that directly sends from ultraviolet emission device (1) and converts reference electrical signal to, this reference electrical signal and identification electric signal relatively draw a difference electric signal, and warning device is made corresponding prompt according to the difference electric signal.
2, a kind of portable fake-identifying instrument according to claim 1, it is characterized in that: its hull shape approaches the telephone microphone shape, at the back side of portable fake-identifying instrument one slim calculator (6) is installed also.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN99225809U CN2369296Y (en) | 1999-02-15 | 1999-02-15 | Portable false identifier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN99225809U CN2369296Y (en) | 1999-02-15 | 1999-02-15 | Portable false identifier |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2369296Y true CN2369296Y (en) | 2000-03-15 |
Family
ID=34015612
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN99225809U Expired - Fee Related CN2369296Y (en) | 1999-02-15 | 1999-02-15 | Portable false identifier |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2369296Y (en) |
-
1999
- 1999-02-15 CN CN99225809U patent/CN2369296Y/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |