CN104406941A - Multifunctional food safety comprehensive detector - Google Patents
Multifunctional food safety comprehensive detector Download PDFInfo
- Publication number
- CN104406941A CN104406941A CN201410628354.0A CN201410628354A CN104406941A CN 104406941 A CN104406941 A CN 104406941A CN 201410628354 A CN201410628354 A CN 201410628354A CN 104406941 A CN104406941 A CN 104406941A
- Authority
- CN
- China
- Prior art keywords
- light
- detection
- light path
- monitoring
- light source
- 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.)
- Pending
Links
Landscapes
- Investigating Or Analysing Materials By Optical Means (AREA)
Abstract
The invention relates to a multifunctional food safety comprehensive detector. The detector comprises a shell, a control circuit, and an optical path system, and the control circuit and the optical path system is arranged in the shell. The optical path system takes a halogen lamp as the light source, the light source is divided into a detection optical path and a monitoring optical path, the detection optical path is divided into a plurality of sub-detection optical paths, and the monitoring optical path is not divided. The sub-detection optical paths are projected on a detection sample, and the emergent light strength is adjusted according to the detection sample. The sub-detection optical paths then is converged and projected on a photocell of an A/D detection circuit board. The detector is a real-time light source monitoring photoelectric monitoring circuit, and is capable of carrying out rapid quantitative or qualitative detection on agricultural products, food non-illegal additives, food toxin, toxins, drug residues, hormones, and the like.
Description
Technical field
The invention belongs to technical field of food safety, relate to the detection of food, especially a kind of multifunctional food safety comprehensive detector.
Background technology
Food security is the major issue being related to the people's livelihood.Food crisis takes place frequently in recent years, and the common people more and more distrust domestic food, and it has been the topic that the common people attract attention for a long time that food safety comprehensive detects.At present, Food Inspection adopts vapor phase method and spectroscopic methodology usually, and owing to relating to the equipment purchase somewhat expensive of these two methods, the method for inspection wastes time and energy, and inspection cost is too high, therefore greatly limit applying of vapor phase method and spectroscopy apparatus.And adopting ripe enzyme linked immunological (ELISA) method and ELISA kit to coordinate the food safety comprehensive detector of inspection, it is with low cost, and the technical requirement of ELISA kit is not high yet, and price is also very cheap, is easy to promotion and application widely.
At present, Food Safety Analysis product fish eyes mixes, and the check feature index of instrument is very unstable.Food-safety detecting instrument on market, have and use LED lamp bead as detection light source, but the light source of this instrument has the half life period, slow-decay is understood in the change of brightness along the time of light source, along with the change of time and the fluctuation of light source voltage, the testing result of instrument alters a great deal; Between each light path of instrument, also difference is very large, the testing result difference that the reagent of same concentration obtains in different detection positions is larger, this just causes the confusion of testing result and is forbidden, and have impact on the promotion and application of euzymelinked immunosorbent assay (ELISA) food safety detector to a great extent.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art, a kind of multifunctional food safety comprehensive detector is provided, solves check feature index stable problem, improve Instrumental results reliability.
The object of the invention is to take following technical scheme to realize:
A kind of multifunctional food safety comprehensive detector, comprise casing, control circuit and light path system, control circuit and light path system are installed in casing, it is characterized in that: the light path system in casing adopts Halogen lamp LED as light source, and this light source is divided into detection light path and monitoring light path, detect light path and be divided into some detection path-splittings, monitoring light path is with regard to a road, detect path-splitting lead to check sample and according to the exiting light beam intensity detecting sample, impinge upon after light path optically focused on the photoelectric cell of A/D testing circuit plate.
And the monitoring light of described monitoring light path directly aims at the photoelectric cell of monitoring A/D circuit board.
And, the structure of described light path system is: the utilizing emitted light that halogen light source sends enters quartzy fibre bundle through total optical fiber head of light shafts, wherein fibre bundle comprises detection divided beams and monitoring light beam, each road incident light that detection divided beams is launched is by sample detection circuit board, the some strength of the absorption of sample incident light on sample detection circuit board and send emergent light, this emergent light impinges upon on the photoelectric cell of A/D testing circuit plate after light path optically focused.
And, the wavelength coverage 240nm ~ 800nm of described Halogen lamp LED.
Advantage of the present invention and good effect are:
1, this detector can the change of the Real-Time Monitoring intensity of light source, very stable detection data just can be obtained within the on time that power supply is unstable or very short, eliminate the trouble that appliance requires regularly checks warming-up when starting shooting with instrument, metrical error between each detect aperture of instrument is little, and the inspection repeatability of instrument is greatly improved.
2, this detector adopts Halogen lamp LED as detection light source, and Halogen lamp LED wavelength coverage 240nm ~ 800nm, can meet the needs of current all food inspection projects substantially; Detect light path and adopt the even light splitting of silica fibre, monitoring light path and detection light path adopt same light source, adopt the light splitting optical path of same standard, the intensity of the energy of light source that every root optical fiber is assigned to is the same, detect repeatability between the light path that such light path design can guarantee instrument very high, monitoring light path can the change of Real-Time Monitoring light source intensity; The numerical value of a certain moment light source intensity, circuit A/D conversion through monitoring light path can obtain a reference value in real time, be used for calibrating the change that synchronization detects light intensity in light path, reduce the impact of intensity of light source change on testing result, solve check feature index stable problem, improve Instrumental results reliability.
3, this detector is a kind of energy Real-Time Monitoring light source light pyroelectric monitor loop, reduce the Strength Changes of light source to the impact of testing result, and coordinate with enzyme linked immunological (ELISA) kit of respective item, can to the food security of agricultural product, the projects such as food illegally adds class, food toxin are carried out fast qualitative or are quantitatively detected, as food security, endotoxin, the residual class of medicine, the detection of the projects such as steroids.
Accompanying drawing explanation
Fig. 1 is inspection principle schematic diagram of the present invention;
Fig. 2 is light source of the present invention and optical fiber schematic diagram;
Fig. 3 is detection light path schematic diagram of the present invention;
Fig. 4 is monitoring light path schematic diagram of the present invention.
Embodiment
Below in conjunction with accompanying drawing, embodiments of the invention are further described; The present embodiment is descriptive, is not determinate, can not limit protection scope of the present invention thus.
A kind of multifunctional food safety comprehensive detector, comprise casing, control circuit and light path system, control circuit and light path system are installed in casing, the panel of wherein casing is provided with the display screen be connected with control circuit, light path system in casing adopts Halogen lamp LED as light source, Halogen lamp LED wavelength coverage 240nm ~ 800nm, and this light source is divided into detection light path and monitoring light path, detect light path and be divided into some detection path-splittings, monitoring light path is with regard to a road, and the light intensity error detected between path-splitting and monitoring light path is less than the standard value of optical requirement; Detect path-splitting and lead to check sample, the light intensity of each light path branch is enough strong, can meet the requirement of food safety detection A/D conversion to light intensity thus; According to the intensity detecting sample emergent light, impinge upon on the photoelectric cell of A/D testing circuit plate after light path optically focused, the operation amplifier through oversampling circuit obtains a numerical value, and this numerical value can draw the concentration of measuring samples through converting.
Above-mentioned monitoring light path is to sky, and the monitoring light of namely monitoring light path directly aims at monitoring A/D circuit board, without any object between monitoring light path and monitoring A/D circuit board.The object of monitoring light path is exactly the reference data that will obtain an intensity of light source in real time, is used for correcting the change of each detection path-splitting light intensity in real time,
Fig. 2 is light path schematic diagram, and its structure is:
The utilizing emitted light 2 that halogen light source 1 sends enters optic module 5 by total optical fiber head 3 of light shafts by the fibre bundle of quartz, and wherein fibre bundle comprises detection divided beams 4 and monitoring light beam 5, and the homogeneity between each road path-splitting meets the requirement of standard; Each road incident light that detection divided beams is launched is by sample detection circuit board 7, the some strength of the absorption of sample incident light on sample detection circuit board and send emergent light, impinge upon on the photoelectric cell 10 of A/D testing circuit plate 9 after light path polymeric plate 8 optically focused, operation amplifier through oversampling circuit obtains a numerical value, and this numerical value can draw the concentration of measuring samples through converting.
In Fig. 4, the incident light that monitoring light beam sends is without any object, directly form emergent light through light path polymeric plate, impinge upon on the photoelectric cell of A/D observation circuit plate, operation amplifier through oversampling circuit obtains a numerical value, this numerical value can as the reference value weighing light source real-time change, is used for the change of light source in correct detection light path to the impact of testing result.Monitoring light beam can the change of Real-Time Monitoring light source, and the basic parameter in time in adjustment instrument Photoelectric Detection process, decreases the impact of Strength Changes on testing result of light source.
Fig. 1 is the photodetector system schematic diagram of patent of the present invention, wherein a is incident light, and b is measuring samples, and c is emergent light, just can show that measuring samples absorbs the light of how much intensity, then just can converse the concentration of measuring samples by inspection incident intensity and exiting light beam intensity.
Claims (4)
1. a multifunctional food safety comprehensive detector, comprise casing, control circuit and light path system, control circuit and light path system are installed in casing, it is characterized in that: the light path system in casing adopts Halogen lamp LED as light source, and this light source is divided into detection light path and monitoring light path, detect light path and be divided into some detection path-splittings, monitoring light path is with regard to a road, detect path-splitting lead to check sample and according to the exiting light beam intensity detecting sample, impinge upon after light path optically focused on the photoelectric cell of A/D testing circuit plate.
2. multifunctional food safety comprehensive detector according to claim 1, is characterized in that: the monitoring light of described monitoring light path directly aims at the photoelectric cell of monitoring A/D circuit board.
3. multifunctional food safety comprehensive detector according to claim 1, it is characterized in that: the structure of described light path system is: the utilizing emitted light that halogen light source sends enters quartzy fibre bundle through total optical fiber head of light shafts, wherein fibre bundle comprises detection divided beams and monitoring light beam, each road incident light that detection divided beams is launched is by sample detection circuit board, the some strength of the absorption of sample incident light on sample detection circuit board and send emergent light, this emergent light impinges upon on the photoelectric cell of A/D testing circuit plate after light path optically focused.
4. multifunctional food safety comprehensive detector according to claim 1, is characterized in that: the wavelength coverage 240nm ~ 800nm of described Halogen lamp LED.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410628354.0A CN104406941A (en) | 2014-11-10 | 2014-11-10 | Multifunctional food safety comprehensive detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410628354.0A CN104406941A (en) | 2014-11-10 | 2014-11-10 | Multifunctional food safety comprehensive detector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104406941A true CN104406941A (en) | 2015-03-11 |
Family
ID=52644588
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410628354.0A Pending CN104406941A (en) | 2014-11-10 | 2014-11-10 | Multifunctional food safety comprehensive detector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104406941A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106198421A (en) * | 2016-08-19 | 2016-12-07 | 中国农业大学 | Multifunctional food detector safely and fast |
| CN106770285A (en) * | 2016-12-06 | 2017-05-31 | 百奥森（江苏）食品安全科技有限公司 | A kind of food inspection Special experimental operating desk |
| CN107561073A (en) * | 2017-09-20 | 2018-01-09 | 天津瑞泽分析仪器有限公司 | A kind of full spectrum ELIASA for being designed with eight passage cell holders |
| WO2019214971A1 (en) * | 2018-05-08 | 2019-11-14 | Byonoy Gmbh | Transmission apparatus for examining samples in cavities of a microtiter plate and method for examining samples in cavities of a microtiter plate by means of transmission |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1937956A (en) * | 2004-05-06 | 2007-03-28 | 日本电信电话株式会社 | Component concentration measuring device and method of controlling component concentration measuring device |
| JP2008026211A (en) * | 2006-07-24 | 2008-02-07 | Matsushita Electric Ind Co Ltd | Method and apparatus for discriminating component of plastic material |
| CN203786023U (en) * | 2014-04-01 | 2014-08-20 | 天津市东丽区产品质量监督检验所 | Portable food detector |
| CN204214777U (en) * | 2014-11-10 | 2015-03-18 | 天津瑞泽分析仪器有限公司 | A kind of multifunctional food safety comprehensive detector |
-
2014
- 2014-11-10 CN CN201410628354.0A patent/CN104406941A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1937956A (en) * | 2004-05-06 | 2007-03-28 | 日本电信电话株式会社 | Component concentration measuring device and method of controlling component concentration measuring device |
| JP2008026211A (en) * | 2006-07-24 | 2008-02-07 | Matsushita Electric Ind Co Ltd | Method and apparatus for discriminating component of plastic material |
| CN203786023U (en) * | 2014-04-01 | 2014-08-20 | 天津市东丽区产品质量监督检验所 | Portable food detector |
| CN204214777U (en) * | 2014-11-10 | 2015-03-18 | 天津瑞泽分析仪器有限公司 | A kind of multifunctional food safety comprehensive detector |
Non-Patent Citations (1)
| Title |
|---|
| 王加华等: "基于可见/近红外能量光谱的苹果褐腐病和水心鉴别", 《光谱学与光谱分析》 * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106198421A (en) * | 2016-08-19 | 2016-12-07 | 中国农业大学 | Multifunctional food detector safely and fast |
| CN106770285A (en) * | 2016-12-06 | 2017-05-31 | 百奥森（江苏）食品安全科技有限公司 | A kind of food inspection Special experimental operating desk |
| CN107561073A (en) * | 2017-09-20 | 2018-01-09 | 天津瑞泽分析仪器有限公司 | A kind of full spectrum ELIASA for being designed with eight passage cell holders |
| WO2019214971A1 (en) * | 2018-05-08 | 2019-11-14 | Byonoy Gmbh | Transmission apparatus for examining samples in cavities of a microtiter plate and method for examining samples in cavities of a microtiter plate by means of transmission |
| CN112334756A (en) * | 2018-05-08 | 2021-02-05 | 拜诺有限公司 | Transmission device for examining samples in a cavity of a microtiter plate and method for examining samples in a cavity of a microtiter plate by means of transmission |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN200972457Y (en) | Investigater for ultraviolet transmissivity | |
| CN104422640B (en) | Laser-scattering-based air quality detecting system | |
| CN104406941A (en) | Multifunctional food safety comprehensive detector | |
| CN104132911A (en) | Open type long optical distance CO and CH4 online testing instrument | |
| CN103411920A (en) | Portable multi-component online monitor of gas dissolved in transformer oil | |
| CN103376251A (en) | Portable Raman spectrum measuring device and system for quickly detecting article | |
| CN105510276A (en) | TDLAS-based multicomponent gas multi-point monitoring system | |
| CN104062265A (en) | Detection device and detection method for multi-component gas in transformer oil based on spectrum analysis | |
| CN102809547A (en) | Method and device for detecting trace gas by scattering-enhanced tunable diode laser | |
| CN203231968U (en) | Optical-fiber type small-sized gold-labeled immunochromatography test paper detector | |
| CN207966163U (en) | A kind of spot-type smoke detector response lag field detecting device | |
| CN104122231B (en) | On-line self-calibration water quality turbidity detection system | |
| CN202794037U (en) | Device for deducting light source fluctuation of atomic fluorescence photometer | |
| CN102128812A (en) | Laser remote energy supply-based device and method for detecting trace gas | |
| CN204214777U (en) | A kind of multifunctional food safety comprehensive detector | |
| CN206725444U (en) | A kind of online flue gas mercury analyzer based on Pressurized sample digestion | |
| CN102323244A (en) | Method for rapidly detecting portable food packaging fluorescent material and device | |
| CN103424369A (en) | Pollution-gas differential optical absorption spectroscopy measurement system with optical fiber structure | |
| CN211263181U (en) | Open-circuit laser gas analyzer for detecting CH4 and H2S | |
| CN105334166A (en) | Dual-detector near-infrared spectroscopy used for food composition analysis | |
| CN102879355A (en) | Device for monitoring methane gas concentration by multimode diode laser absorption spectroscopy technology and monitoring method | |
| CN103792199A (en) | Water quality monitoring device based on colorimetric method | |
| CN101158639A (en) | Gas composition concentration optical spectrum monitoring device | |
| CN216082487U (en) | Low-cost fluorescence detection sensor | |
| CN203287309U (en) | Double-cavity methane gas concentration sensitive detection device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150311 |