CN201382904Y - Bottle-packed liquid foreign body detection device - Google Patents
Bottle-packed liquid foreign body detection device Download PDFInfo
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- CN201382904Y CN201382904Y CN200920113566U CN200920113566U CN201382904Y CN 201382904 Y CN201382904 Y CN 201382904Y CN 200920113566 U CN200920113566 U CN 200920113566U CN 200920113566 U CN200920113566 U CN 200920113566U CN 201382904 Y CN201382904 Y CN 201382904Y
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Abstract
The utility model relates to a bottle-packed liquid foreign body detection device. The prior art is easy disturbed by outside, has low signal-to-noise ratio and sensibility, complex system formation and low detection efficiency of transparent and translucent foreign bodies. The utility model utilizes the phase contrast technique and the light signal modulation and demodulation technique, light beams which are output by a light source component pass through a light beam shaping component, a detected bottled liquid product, a phase contrast component, an image-forming object lens component and a photoelectric detector array after being modulated by a signal generator, modulating light beams gathered by the photoelectric detector array are demodulated through signals by the signal demodulator, and information that the detected bottled liquid product contains foreign bodies. The bottle-packed liquid foreign body detection device has the characteristics of high sensitivity and signal-to-noise ratio, strong anti-interference capacity, high efficiency for detecting transparent and translucent foreign bodies, simple and reasonable structures and the like.
Description
Technical field
The utility model belongs to the optical detective technology field, relates to a kind of bottling liquid detection device for foreign matter.
Technical background
Detection device for foreign matter is meant in productions such as medicine, beverage and quality inspection process, the device that fluid products such as transparent or semitransparent medicine, infusion bottle, oral liquid are carried out quality testing.Foreign matter in the bottling liquid product detects whether contain the various materials that are insoluble to liquid, for example glass fragment, solid impurity etc. in the main tracer liquid.Along with the day by day attention of people to medicine and food quality, and country's perfect to medicine and food control system, standard and flow process, the requisite testing process of foreign matter detection day by day becoming in the fluid products such as medicine, beverage.At present, adopt artificial lamp detection method usually, promptly shine under the condition at certain lamp, the testing staff directly observes the bottling liquid product with human eye, checks in the fluid product whether contain foreign matter, and contains foreign matter size, quantity etc.The method man power and material's input amount is big, monitoring efficient, and be difficult to printing opacity foreign matter in the tracer liquid.
The automatic foreign body checking machine that formerly also has a kind of dual signal reception in the technology is (referring to utility model patent " automatic foreign body checking machine that dual signal receives ", utility model patent number: ZL200720074851.6), be disposed with the luminotron assembly on the light path in this device, light emission collecting lens, the light-receiving collecting lens, the imaging mirror, spectroscope, and the diaphragm and the optical receiving sensor array that are provided with on two beam split light paths, utilize that diaphragm raising system gets signal to noise ratio (S/N ratio) and sensitivity in the light path, this device has certain advantage, but still exist not enough: utilize diaphragm raising system to get signal to noise ratio (S/N ratio) and sensitivity, it is limited that signal to noise ratio (S/N ratio) and sensitivity improve degree; The optical receiving sensor array also can receive external interference light in the system in received signal light, promptly produces and measures noise, is subjected to external interference bigger, and influence detects stability; Optical system constitutes complicated, and simultaneously, mechanical positioning requires the degree height, is difficult to detect foreign matter like light transmission features and the liquid phase of living in.
Summary of the invention
The purpose of this utility model has been to overcome the deficiency of above-mentioned technology formerly, and a kind of bottling liquid detection device for foreign matter is provided.
The utility model comprises light source assembly, beam shaping device, phase contrast device, image-forming objective lens assembly, photodetector array, signal generator, demodulator of PM signal PM; Beam shaping device, phase contrast device, image-forming objective lens assembly, photodetector array are successively set on the light source assembly outgoing beam light path, and detected material is arranged on the light path between beam shaping device and the phase contrast device; Photodetector array is arranged on the picture plane of image-forming objective lens; Light source assembly all is connected with signal generator with demodulator of PM signal PM; Demodulator of PM signal PM is connected with photodetector array.
Described light source assembly is a kind of of incoherent light source component, coherent source assembly, incoherent light source array, coherent source array, optical fiber source.
Described beam shaping device is a kind of of beam expander device, beam collimation device, beam collimation reshaper, beam expander reshaper.
Described image-forming objective lens assembly is a kind of of achromatic objective, apochromatic objective, flat field image-forming objective lens, polarized light image-forming objective lens.
Described photodetector array is a kind of of photosensitive tube array, photodiode array, linear charge-coupled array, surface array charge-coupled device, linear array complementary metal-oxide-semiconductor transistor, face battle array complementary metal-oxide-semiconductor transistor, optics microchannel plate.
Described signal generator is a kind of of analog signal generator, digital signal generator, mixed type signal generator.
Described demodulator of PM signal PM is a kind of of analog signal demodulator, digital signal demodulator, software signal demodulation process module.
The utility model beneficial effect is that compared with prior art, owing to adopt phase-contrast technique, it is highly sensitive to detect the transparent or semitransparent foreign matter that waits, and phase foreign body is detected superior performance; Adopt modulation of source and photodetector array modulation signal analytical technology, improved sensitivity and signal to noise ratio (S/N ratio) that foreign matter detects; Simultaneously, suppress external interference light to the influence that device detects, provide device to detect stability from principle; And have characteristics such as system design is reasonable, simple in structure, the required expense of realization is low, the mechanical positioning requirement is low, use operation facility.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Embodiment
Below in conjunction with embodiment the utility model is described in further detail.
As Fig. 1, a kind of bottling liquid detection device for foreign matter comprises light source assembly 1, beam shaping device 2, phase contrast device 4, image-forming objective lens assembly 5, photodetector array 6, signal generator 7, demodulator of PM signal PM 8; Beam shaping device 2, phase contrast device 4, image-forming objective lens assembly 5, photodetector array 6 are successively set on the light source assembly 1 outgoing beam light path, and detected material 3 is arranged on the light path between beam shaping device 2 and the phase contrast device 4; Photodetector array 6 is arranged on the picture plane of image-forming objective lens 5; Light source assembly 1 all is connected with signal generator 7 with demodulator of PM signal PM 8; Demodulator of PM signal PM 8 is connected with photodetector array 6.
Light source assembly 1 adopts the incoherent light source array, beam shaping device 2 is the beam collimation reshaper, phase contrast device 4 adopts Ze Nike type phase contrast imaging lens combination, image-forming objective lens assembly 5 adopts the flat field image-forming objective lens, photodetector array 6 is a photodiode array, signal generator 7 adopts analog signal generator, and demodulator of PM signal PM 8 adopts analog signal demodulator, and detected material 3 is the transparent medicine of injection.
The utility model course of work is that light source assembly 1 outgoing beam carries out the shaping collimation through beam shaping device 2; Signal generator 7 is connected with light source assembly 1, the emission modulated drive signal is given light source assembly 1, light source assembly 1 outgoing beam is modulated, modulating frequency is avoided external interference light beats frequency and mains supply frequency, external interference light beats frequency is generally low frequency, less than 100Hz, selective light source component 1 frequency modulating signal is 500Hz in the present embodiment; Through the detected bottling liquid product 3 of modulated beam of light directive behind the shaping collimation, transmission modulated beam of light directive phase contrast device 4 through detected bottling liquid product 3, phase contrast device 4 adopts Ze Nike type phase contrast imaging lens combination, realizes the conversion of the phase information of phase foreign body to amplitude information; Collected by image-forming objective lens assembly 5 through the light beam behind the phase contrast device 4, image on the photodetector array 6; Photodetector array 6 is arranged on the picture plane of detected bottling liquid product 3 through phase contrast device 4 and 5 imagings of image-forming objective lens assembly, and the signal that photodetector array 6 detects is that the modulated beam of light of detected bottling liquid product 3 sees through signal; Photodetector array 6 is connected with demodulator of PM signal PM 8, detected bottling liquid product 3 light modulated electrical information are transferred to demodulator of PM signal PM 8, synchronous signal generator 7 is connected with demodulator of PM signal PM 8, is used for the signal demodulation for demodulator of PM signal PM 8 reference signal transmission; Demodulator of PM signal PM 8 carries out the signal demodulation with the modulated beam of light of the detected bottling liquid product 3 that photodetector array 6 collects through signal, detecting frequency modulating signal is the signal of 500Hz, obtain the light transmission signal of detected bottling liquid product 3, the light transmission signal just can obtain the information such as foreign matter size, quantity, distribution in the detected bottling liquid product 3 by analysis.Because modulating frequency and external interference light beats frequency stagger, obviously suppress the influence that external interference light detects device in the utility model, and detect the sensitivity and the signal to noise ratio (S/N ratio) height of transparent and translucent foreign matter, effective.
The utility model provides a kind of modulating signal foreign matter analysis detecting device, has successfully realized liquid Foreign matter in the body product detects, owing to adopt phase-contrast technique, phase foreign body is detected superior performance, Sensitivity and signal to noise ratio height that foreign matter detects utilize modulation-demodulation technique to discharge external interference simultaneously The impact that light detects device detects good stability, have simultaneously reasonable in design, simple in structure, Realize that low, the mechanical positioning requirements of required expense is low, use characteristics such as operating facility.
Claims (7)
1, a kind of bottling liquid detection device for foreign matter, comprise light source assembly, beam shaping device, phase contrast device, image-forming objective lens assembly, photodetector array, signal generator, demodulator of PM signal PM, it is characterized in that: beam shaping device, phase contrast device, image-forming objective lens assembly, photodetector array are successively set on the light source assembly outgoing beam light path, and detected material is arranged on the light path between beam shaping device and the image-forming objective lens assembly; Photodetector array is arranged on the picture plane of detected material through phase contrast device and image-forming objective lens imaging; Light source assembly all is connected with signal generator with demodulator of PM signal PM; Demodulator of PM signal PM is connected with photodetector array.
2, a kind of bottling liquid detection device for foreign matter as claimed in claim 1 is characterized in that: described light source assembly is a kind of of incoherent light source component, coherent source assembly, incoherent light source array, coherent source array, optical fiber source.
3, a kind of bottling liquid detection device for foreign matter as claimed in claim 1 is characterized in that: described beam shaping device is a kind of of beam expander device, beam collimation device, beam collimation reshaper, beam expander reshaper.
4, a kind of bottling liquid detection device for foreign matter as claimed in claim 1 is characterized in that: described image-forming objective lens assembly is a kind of of achromatic objective, apochromatic objective, flat field image-forming objective lens, polarized light image-forming objective lens.
5, a kind of bottling liquid detection device for foreign matter as claimed in claim 1 is characterized in that: described photodetector array is a kind of of photosensitive tube array, photodiode array, linear charge-coupled array, surface array charge-coupled device, linear array complementary metal-oxide-semiconductor transistor, face battle array complementary metal-oxide-semiconductor transistor, optics microchannel plate.
6, a kind of bottling liquid detection device for foreign matter as claimed in claim 1 is characterized in that: described signal generator is a kind of of analog signal generator, digital signal generator, mixed type signal generator.
7, a kind of bottling liquid detection device for foreign matter as claimed in claim 1 is characterized in that: described demodulator of PM signal PM is a kind of of analog signal demodulator, digital signal demodulator, software signal demodulation process module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920113566U CN201382904Y (en) | 2009-02-09 | 2009-02-09 | Bottle-packed liquid foreign body detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920113566U CN201382904Y (en) | 2009-02-09 | 2009-02-09 | Bottle-packed liquid foreign body detection device |
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| Publication Number | Publication Date |
|---|---|
| CN201382904Y true CN201382904Y (en) | 2010-01-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN200920113566U Expired - Fee Related CN201382904Y (en) | 2009-02-09 | 2009-02-09 | Bottle-packed liquid foreign body detection device |
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| CN (1) | CN201382904Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102560628A (en) * | 2012-01-31 | 2012-07-11 | 常州亿晶光电科技有限公司 | Special device for observing and sorting air bubbles of sapphire crystal with free-upward view and full view angle |
| CN107957395A (en) * | 2016-10-17 | 2018-04-24 | 山东赛蒙斯生物技术有限公司 | Detection device for foreign matter in transparent/translucent product |
| CN110618140A (en) * | 2019-11-01 | 2019-12-27 | 杭州深度视觉科技有限公司 | Machine vision detection system and method for bearing ring grinding vibration lines |
-
2009
- 2009-02-09 CN CN200920113566U patent/CN201382904Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102560628A (en) * | 2012-01-31 | 2012-07-11 | 常州亿晶光电科技有限公司 | Special device for observing and sorting air bubbles of sapphire crystal with free-upward view and full view angle |
| CN102560628B (en) * | 2012-01-31 | 2016-04-20 | 常州亿晶光电科技有限公司 | Exempt from the special purpose device looking up full view go-on-go sapphire crystal bubble |
| CN107957395A (en) * | 2016-10-17 | 2018-04-24 | 山东赛蒙斯生物技术有限公司 | Detection device for foreign matter in transparent/translucent product |
| CN110618140A (en) * | 2019-11-01 | 2019-12-27 | 杭州深度视觉科技有限公司 | Machine vision detection system and method for bearing ring grinding vibration lines |
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| Date | Code | Title | Description |
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| 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: 20100113 Termination date: 20100209 |