CN201962291U - Coli group multi-channel real-time quick detecting system - Google Patents
Coli group multi-channel real-time quick detecting system Download PDFInfo
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- CN201962291U CN201962291U CN2011200634901U CN201120063490U CN201962291U CN 201962291 U CN201962291 U CN 201962291U CN 2011200634901 U CN2011200634901 U CN 2011200634901U CN 201120063490 U CN201120063490 U CN 201120063490U CN 201962291 U CN201962291 U CN 201962291U
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- coliform
- light source
- detecting
- time
- multiple tracks
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Abstract
The utility model discloses a coli group multi-channel real-time quick detecting system, which comprises a plurality of detecting units and a computer, an interface circuit board, a thermostat controller and an AD (alternating current and direct current) switching circuit which are shared by the plurality of detecting units. Each detecting unit is provided with an independent sample cell, an optical source, an optical system and a photon receiver. The optical source and the photon receiver are fixed on a support respectively, and the optical system is arranged at the back of the optical source. A luminous axis of the optical source and an optical receiver axis of the photon receiver are in a straight line. The sample cell is fixed on a light channel of the straight line. The optical source and the thermostat controller arranged on each detecting unit are connected with the interface circuit board connected with the computer. The photon receiver of each detecting unit is connected with the interface circuit board through the AD switching circuit. The coli group multi-channel real-time quick detecting system can be used for detecting a coli group in samples of various foods, cosmetics, medicines and environmental samples, and is capable of detecting a plurality of samples simultaneously, and small in size, quick in detecting speed, simple in operation, convenient to bring, and high in measurement accuracy.
Description
Technical field
The utility model belongs to the technical field of environment, food inspection instrument, relates to coliform multiple tracks detection system real-time.
Background technology
In the hygienic quality check of food, coliform (coliform bacteria) is the indicator of the various water quality of internationally recognized detection, medicine and food security on epidemiology, is important hygiology index, also is one of the project that must survey.In recent decades, China adopts traditional lactose fermentation biochemical identification method to detect coliform always, and this method needs 3-4 consuming time days, has many shortcomings such as length consuming time, complex steps, workload are big.The external present new technology for detection coliform that adopted.The detection of coliform is that whether flavescence comes whether to contain in the judgement sample coliform according to nutrient solution in the American National Standard, and new method only needed just can obtain a result in 18～24 hours, and is more a lot of soon than the detection method of the existing national standard defined of China.Therefore, domestic urgent need exploitation can quick, sensitive, accurately detect the new technology of coliform.
The utility model content
The purpose of this utility model be to provide a kind of fast, sensitive, coliform multiple tracks detection system real-time accurately.
To achieve these goals, solution of the present utility model is:
The coliform multiple tracks is detection system real-time, comprises computer, Line Card, radiator valve and the A/D convertor circuit of plurality of detection unit and plurality of detection units shared; Each detecting unit has independently sample pool, light source, optical system and photon receptor, light source and photon receptor are separately fixed on the support, the light source back is furnished with optical system, the optical axis that is subjected to of the light-emitting axis of light source and photon receptor forms a straight line, and sample pool then is fixed on the collinear light path; The light source of each detecting unit links to each other with Line Card with radiator valve, and Line Card links to each other with computer again, and the photon receptor of each detecting unit links to each other with Line Card by A/D convertor circuit.
Is furnished with the lid that has filter disc on the described sample pool.
Described light source adopts photodiode.
Described photon receptor adopts phototube.
Described radiator valve is made up of temperature control device and temperature heater spare, and temperature heater spare is connected with Line Card by temperature control device.
Described plurality of detection unit is installed in the casing, and casing is furnished with lid, is lined with lagging material in the wall of casing, and radiator valve is installed in the wall of casing.
After adopting said structure, when the utility model uses, sample and substratum are placed in the sample pool, then sample pool is placed on the support of detecting unit, by the computer installation system temperature, by radiator valve total system is carried out temperature control and adjusting, system is remained under the temperature that is suitable for coliform growth, open light source, the illumination of sending is mapped to sample pool, o-nitrophenol beta-D-galactosidase in the beta-galactosidase enzymes decomposition substratum that the coliform in the sample produces produces yellow substance, can detect absorbancy at the 410-420nm wavelength, after emission light is received by the photon receptor, the numerary signal that provides by A/D convertor circuit, carry out computing by the program that is solidificated in computer, provide the quantity of coliform in the sample, draw test result according to the variation of the absorbancy of specific wavelength.
The utility model is highly sensitive, minimum 1/10mL (gram) sample that detects; Can detect several to dozens of samples simultaneously as required; But the test sample kind is wide, can detect common various food, makeup, medicine, environmental sample etc.; Also can be used for coliform metabolism, anticorrosion and sterilisation effect research etc.; The characteristics that tool detects in real time, detection speed is fast, and the sample bacteria containing amount is high more, and it is fast more to go out the result, only need promptly provide the result in 10-24 hour.The detection step is simple, need not complicated pre-treatment for liquid sample, and solid sample only need carry out necessary homogeneous and dilution gets final product.In a word, the utlity model has the characteristics that selectivity is strong, accuracy is high, quick and economic.
Description of drawings
Fig. 1 is an overall schematic of the present utility model;
Fig. 2 is a detecting unit structural representation of the present utility model;
Fig. 3 is a circuit block diagram of the present utility model.
Label declaration
Detecting unit 1 casing 2
Computer 9 Line Cards 10
Power supply 11 A/D convertor circuits 12
Embodiment
Below in conjunction with drawings and the specific embodiments the utility model is done and to be described in further detail.
As shown in Figure 1 to Figure 3, the coliform multiple tracks that the utility model discloses is detection system real-time, comprises computer 9, Line Card 10, radiator valve (being made up of temperature control device 13 and temperature heater spare 14) and A/D convertor circuit 12 that plurality of detection unit 1 and plurality of detection unit 1 are shared.
The utility model contains a plurality of identical detecting units, can detect a plurality of samples simultaneously.Each detecting unit 1 has independently, and sample pool 4, light source 5(adopt photodiode), optical system and photon receptor 6(adopt phototube).Light source 5 and photon receptor 6 are separately fixed on the support 8, light source 5 back are furnished with optical system, the optical axis that is subjected to of the light-emitting axis of light source 5 and photon receptor 6 forms a straight line, 4 of sample pools are fixed on the collinear light path, be furnished with the lid that has filter disc 7 on the sample pool 4, can ventilate effectively and stop microorganism enters.
The power supply 11 of the light source 5 of each detecting unit 1 and the temperature control device 13 of radiator valve link to each other with Line Card 10, temperature heater spare 14 is connected with Line Card 10 by temperature control device 13, Line Card 10 links to each other with computer 9 again, and the photon receptor 6 of each detecting unit 1 links to each other with Line Card 10 by A/D convertor circuit 12.
Plurality of detection unit 1 is installed in the casing 2, and casing 2 is furnished with lid 3, is lined with lagging material in the wall of casing 2, and radiator valve is installed in the wall of casing 2, the effect of tool darkroom and thermostat container.
The utility model is controlled by the switch of 9 pairs of light source 5 photodiodes of computer, computer 9 also calculates by the program that is solidificated in computer 9 numerary signal that A/D convertor circuit 12 provides, and provides the quantity of coliform in the sample according to the variation of the absorbancy of specific wavelength.Computer 9 can also carry out temperature control and adjusting to total system by radiator valve.Instrument parameter is by computer 9 layout setting, instrument according to layout setting require to finish that light source switch, optical mode analog signal receive, AD change, automatically reset, function such as the automatic storage of data.
Technically, design of the present utility model also need be accomplished: the instrument darkroom can reach the requirement of abundant lucifuge; Photodiode in the circuit and phototube will adopt the device of stability height and high conformity, make the measuring accuracy between each detecting unit 1 have comparability; Photodiode and phototube power supply are by computer 9 controls, and time control accurately improves the accuracy of measuring, and can satisfy the needs of various occasion sample determinations such as scientific research, experiment.
When the utility model used, sample and substratum were positioned in the sample pool 4, then sample pool 4 are put into the support 8 of detecting unit 1, cover the lid 3 of system.By computer 9 system temperature is set, system is remained under the temperature that is suitable for coliform growth.Open LED source 5, photodiode is lighted luminous, and irradiation is positioned at sample pool 4.O-nitrophenol beta-D-galactosidase in the beta-galactosidase enzymes decomposition substratum that the coliform in the sample produces produces yellow substance, can detect absorbancy at the 410-420nm wavelength, after emission light is received by phototube photon receptor 6, handle by computer 9 by A/D convertor circuit 12, draw test result.
It is little to the utlity model has volume, and detection speed is fast, simple to operate, the easy to carry and high characteristics of measuring accuracy.
Claims (6)
1. coliform multiple tracks detection system real-time is characterized in that: the computer, Line Card, radiator valve and the A/D convertor circuit that comprise plurality of detection unit and plurality of detection units shared; Each detecting unit has independently sample pool, light source, optical system and photon receptor, light source and photon receptor are separately fixed on the support, the light source back is furnished with optical system, the optical axis that is subjected to of the light-emitting axis of light source and photon receptor forms a straight line, and sample pool then is fixed on the collinear light path; The light source of each detecting unit links to each other with Line Card with radiator valve, and Line Card links to each other with computer again, and the photon receptor of each detecting unit links to each other with Line Card by A/D convertor circuit.
2. coliform multiple tracks as claimed in claim 1 is detection system real-time, it is characterized in that: be furnished with the lid that has filter disc on the described sample pool.
3. coliform multiple tracks as claimed in claim 1 is detection system real-time, it is characterized in that: described light source adopts photodiode.
4. coliform multiple tracks as claimed in claim 1 is detection system real-time, it is characterized in that: described photon receptor adopts phototube.
5. coliform multiple tracks as claimed in claim 1 is detection system real-time, it is characterized in that: described radiator valve is made up of temperature control device and temperature heater spare, and temperature heater spare is connected with Line Card by temperature control device.
6. coliform multiple tracks as claimed in claim 1 is detection system real-time, it is characterized in that: described plurality of detection unit is installed in the casing, and casing is furnished with lid, is lined with lagging material in the wall of casing, and radiator valve is installed in the wall of casing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200634901U CN201962291U (en) | 2011-03-11 | 2011-03-11 | Coli group multi-channel real-time quick detecting system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200634901U CN201962291U (en) | 2011-03-11 | 2011-03-11 | Coli group multi-channel real-time quick detecting system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201962291U true CN201962291U (en) | 2011-09-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200634901U Expired - Fee Related CN201962291U (en) | 2011-03-11 | 2011-03-11 | Coli group multi-channel real-time quick detecting system |
Country Status (1)
| Country | Link |
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| CN (1) | CN201962291U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103361266A (en) * | 2013-07-12 | 2013-10-23 | 昆山爱达斯工业设计有限公司 | Rapid multi-parameter microorganism detector |
-
2011
- 2011-03-11 CN CN2011200634901U patent/CN201962291U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103361266A (en) * | 2013-07-12 | 2013-10-23 | 昆山爱达斯工业设计有限公司 | Rapid multi-parameter microorganism detector |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110907 Termination date: 20160311 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |