CN201382905Y - Modulating signal foreign matter analysis detecting device - Google Patents
Modulating signal foreign matter analysis detecting device Download PDFInfo
- Publication number
- CN201382905Y CN201382905Y CN200920113567U CN200920113567U CN201382905Y CN 201382905 Y CN201382905 Y CN 201382905Y CN 200920113567 U CN200920113567 U CN 200920113567U CN 200920113567 U CN200920113567 U CN 200920113567U CN 201382905 Y CN201382905 Y CN 201382905Y
- Authority
- CN
- China
- Prior art keywords
- signal
- foreign matter
- array
- image
- objective lens
- 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
- Investigating Or Analysing Materials By Optical Means (AREA)
- Geophysics And Detection Of Objects (AREA)
Abstract
The utility model relates to a modulating signal foreign matter analysis detecting device. A modulating signal foreign matter analysis detecting device in the prior art is easily disturbed by the outside, and has low signal-to-noise ratio and sensitivity and complex system structure. The modulating signal foreign matter analysis detecting device utilizes the light signal modulating-demodulating technique, emergent light beams of a light source component pass through a light beam shaping component, a measured bottled liquid product, an image-forming object lens component and a photoelectric detector array after being modulated by a signal generator, modulated light beams collected by the photoelectric detector array are demodulated through signals by the signal demodulator to obtain the information that the measured bottled liquid product contains foreign matters. The modulating signal foreign matter analysis detecting device has the characteristics of high sensitivity and signal-to-noise ratio, excellent stability, strong anti-interference capacity, simple and reasonable structure, low mechanical positioning requirements and the like.
Description
Technical field
The utility model belongs to the optical detective technology field, relates to a kind of modulation signal and analyzes 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, in production such as medicine, beverage and the quality inspection real process, 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, and monitoring efficient and automaticity are low, and examination criteria is difficult to control adjustment.
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 mechanical positioning requires the degree height.
Summary of the invention
The purpose of this utility model has been to overcome the deficiency of above-mentioned technology formerly, provides a kind of modulation signal to analyze detection device for foreign matter.
The utility model comprises light source assembly, beam shaping device, image-forming objective lens assembly, photodetector array, signal generator, demodulator of PM signal PM; Beam shaping device, image-forming objective lens assembly, photodetector array are successively set on the light source assembly outgoing beam light path, and detected bottling liquid product 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 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, the image-forming objective lens that matches.
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 compared with prior art, owing to adopted modulation of source and photodetector array modulation signal analytical technology, to have 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 modulation signal is analyzed detection device for foreign matter and is comprised light source assembly 1, beam shaping device 2, image-forming objective lens assembly 4, photodetector array 5, signal generator 6, demodulator of PM signal PM 7; Beam shaping device 2, image-forming objective lens assembly 4, photodetector array 5 be successively on the light source assembly 1 outgoing beam light path, and detected bottling liquid product is arranged on the light path between beam shaping device 2 and the image-forming objective lens assembly 4; Photodetector array 5 is arranged on the picture plane of image-forming objective lens 4; Light source assembly 1 all is connected with signal generator 6 with demodulator of PM signal PM 7; Demodulator of PM signal PM 7 is connected with photodetector array 5.
Light source assembly 1 adopts the incoherent light source array, beam shaping device 2 is the beam collimation reshaper, image-forming objective lens assembly 4 adopts the flat field image-forming objective lens, photodetector array 5 is a photodiode array, signal generator 6 adopts analog signal generator, demodulator of PM signal PM 7 adopts analog signal demodulator, and detected bottling liquid product 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 6 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, collected by image-forming objective lens assembly 4 through the transmission modulated beam of light of detected bottling liquid product 3, image on the photodetector array 5; Photodetector array 5 is arranged on the picture plane of detected bottling liquid product 3 through 4 imagings of image-forming objective lens assembly, and the signal that photodetector array 5 detects is that the modulated beam of light of detected bottling liquid product 3 sees through signal; Photodetector array 5 is connected with demodulator of PM signal PM 7, detected bottling liquid product 3 light modulated electrical information are transferred to demodulator of PM signal PM 7, synchronous signal generator 6 is connected with demodulator of PM signal PM 7, is used for the signal demodulation for demodulator of PM signal PM 7 reference signal transmission; Demodulator of PM signal PM 7 carries out the signal demodulation with the modulated beam of light of the detected bottling liquid product 3 that photodetector array 5 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 external interference light in the utility model, improved sensitivity, signal to noise ratio (S/N ratio), and detect stability the influence that device detects.
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, and sensitivity and signal to noise ratio height that foreign matter detects have been discharged external interference 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 modulation signal is analyzed detection device for foreign matter, comprise light source assembly, beam shaping device, image-forming objective lens assembly, photodetector array, signal generator, demodulator of PM signal PM, it is characterized in that: beam shaping 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 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.
2, a kind of modulation signal as claimed in claim 1 is analyzed detection device for foreign matter, it 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 modulation signal as claimed in claim 1 is analyzed detection device for foreign matter, it 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 modulation signal as claimed in claim 1 is analyzed detection device for foreign matter, it 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, the image-forming objective lens that matches.
5, a kind of modulation signal as claimed in claim 1 is analyzed detection device for foreign matter, it 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 modulation signal as claimed in claim 1 is analyzed detection device for foreign matter, it 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 modulation signal as claimed in claim 1 is analyzed detection device for foreign matter, it 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 |
|---|---|---|---|
| CN200920113567U CN201382905Y (en) | 2009-02-09 | 2009-02-09 | Modulating signal foreign matter analysis detecting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920113567U CN201382905Y (en) | 2009-02-09 | 2009-02-09 | Modulating signal foreign matter analysis detecting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201382905Y true CN201382905Y (en) | 2010-01-13 |
Family
ID=41526377
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200920113567U Expired - Fee Related CN201382905Y (en) | 2009-02-09 | 2009-02-09 | Modulating signal foreign matter analysis detecting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201382905Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112798603A (en) * | 2021-01-06 | 2021-05-14 | 深圳技术大学 | Imaging system and imaging method thereof |
-
2009
- 2009-02-09 CN CN200920113567U patent/CN201382905Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112798603A (en) * | 2021-01-06 | 2021-05-14 | 深圳技术大学 | Imaging system and imaging method thereof |
| US12003868B2 (en) | 2021-01-06 | 2024-06-04 | Shenzhen Technology University | Imaging system and imaging method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104856653A (en) | Device and method for detecting blood vessel | |
| JPH02295539A (en) | Method and device for identifying blood vessel of eyeground | |
| CN104535481A (en) | Imaging flow cytometer | |
| CN201382904Y (en) | Bottle-packed liquid foreign body detection device | |
| WO2015026794A1 (en) | Nephelometry method and apparatus for determining the concentration of suspended particles in an array of sample containers | |
| CN209296738U (en) | A kind of reagent card detection system and its reagent card detector | |
| CN103293165A (en) | Solid granular foreign matter detection device and method for automatic light examining machine | |
| CN210427583U (en) | Light path mechanism for immunofluorescence detection | |
| CN201382905Y (en) | Modulating signal foreign matter analysis detecting device | |
| CN110044821A (en) | It is a kind of for fluorescent signals detection light channel structure, optical assay device | |
| CN101482519B (en) | Detection apparatus for phase foreign body in fluid | |
| CN102914547B (en) | System and method for automatically detecting impurities in bottled liquid | |
| CN201364314Y (en) | Signal modulation and analysis dual detector foreign body detection device | |
| CN101131368B (en) | Automatic foreign body checking machine with double-photo signal receiving sensor array structure | |
| CN205368371U (en) | Detection apparatus for QPCR multichannel removes light source | |
| CN111366537A (en) | Dark field polarization extinction imaging device and method for biological tissue detection | |
| CN201364315Y (en) | Foreign body detection photo-electric device | |
| CN105241818A (en) | Photoelectric probe for oil monitoring on water surface | |
| CN216082487U (en) | Low-cost fluorescence detection sensor | |
| CN215953408U (en) | Novel X-ray foreign matter detection system with double light sources and four viewing angles | |
| CN201364316Y (en) | Cylinder shaping dual detector complementary foreign body detection device | |
| CN201681045U (en) | Portable wireless transmission and image display type microorganism fast detection searchlight | |
| CN201382906Y (en) | Double-detector foreign matter detecting device of phase contrast technique | |
| CN212275577U (en) | Cigarette bead on-line measuring system | |
| CN109190610B (en) | Single-channel iris detection equipment |
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: 20100113 Termination date: 20100209 |