CN201707296U - Detector for identifying and detecting edible oil blended with drainage oil by fluorescence method - Google Patents
Detector for identifying and detecting edible oil blended with drainage oil by fluorescence method Download PDFInfo
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- CN201707296U CN201707296U CN2010201787045U CN201020178704U CN201707296U CN 201707296 U CN201707296 U CN 201707296U CN 2010201787045 U CN2010201787045 U CN 2010201787045U CN 201020178704 U CN201020178704 U CN 201020178704U CN 201707296 U CN201707296 U CN 201707296U
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Abstract
The utility model discloses a detector for identifying and detecting edible oil blended with drainage oil by a fluorescence method, which relates to the improvement of an edible oil detection device and is characterized in that the output end of a photoelectric conversion detection circuit is connected with the input end of an integrated amplifying circuit; the output end of the integrated amplifying circuit is connected with the input end of a voltage comparator; and the output end of the voltage comparator is connected with an audible and visual alarm circuit. The utility model has the advantages that a result can be displayed by one-button operation without carrying out any treatment on a sample. The application of the product provides a convenient and rapid method of identifying the illegal cooking oil and resisting the drainage oil purchase for school mess halls, office mess halls, factory and mine mess halls and various restaurants. The popularization of the product can effectively eliminate the phenomenon that the illegal cooking oil enters the catering services, and the consumer rights and interests are guaranteed.
Description
Technical field
The utility model belongs to the detecting instrument technical field, relates to a kind of improvement of edible oil pick-up unit.
Background technology
The phenomenon that waste oil flows into the food and beverage sevice link is on the rise, and brings serious harm for vast consumer's health.At present, relevant department is not also from chemico-analytic viewpoint definition waste oil, and the detection of waste oil is also with regard to the authoritative detection method of neither one.The acid system titration is that the acid number rising of the edible oil after using with high temperature serves as to differentiate waste oil according to measuring the acid amount; Electrical conductivity method, iodine method are to contain organic acid and salt serves as according to differentiating waste oil with the edible oil after using; Gas phase, liquid phase chromatography are with different material different in gas phase or liquid phase and filling material retention time, differentiate waste oil by the comparison retention time.It is that characteristic is differentiated waste oil that these methods all do not have with heterocycle that contains severe toxicity in the waste oil and polycyclic aromatic compound, thereby to need to detect heterocycle and polycyclic aromatic compound be the waste oil discrimination method of means.
Summary of the invention
The purpose of this utility model is: provide a kind of fluorescence method to differentiate and detect the edible oil detector that is mixed with waste oil, it can detect heterocycle and polycyclic aromatic compound is the waste oil discriminating of means.
The technical solution of the utility model is: the output terminal of opto-electronic conversion testing circuit is connected with the integrated amplifier input end, and the integrated amplifier output terminal connects in the voltage comparator input end, and the voltage comparator output terminal is connected with sound light alarming circuit.
Concrete operation circuit is: 2 pin of optical sensor CG are connected with the positive pole of the operational amplification circuit IC1 of photoelectric detective circuit, 1 pin is connected with negative pole, the negative pole of the operational amplification circuit IC2 of output termination the two poles of the earth amplifying circuit of operational amplification circuit IC1, the negative pole of the operational amplification circuit IC3 of output termination the two poles of the earth amplifying circuit of operational amplification circuit IC2, the output terminal of operational amplification circuit IC3 is connected with the positive pole of the operational amplification circuit IC4 of thresholding comparator circuit, power supply connects the negative pole of operational amplification circuit IC4 by clamped resistance R 41 and variable resistor R42, the output terminal of operational amplification circuit IC4 is connected with 555 chips, 4 pin of sound light alarming circuit, 555 chips, 8 pin connect 3 pin by resistance R 53 and luminotron D3, and 3 pin are also by capacitor C 52, hummer Y, serial connection to 5 pin of capacitor C 51.
The beneficial effects of the utility model are: need not sample is carried out any pre-service, but a key operation is with regard to display result.The application of this product will be differentiated waste oil to school lunch service, authority canteen, factories and miness dining room, all kinds of restaurant, waste oil is bought in resistance provides conveniently method, the phenomenon that waste oil flows into catering trade can be effectively eliminated in popularizing of this product, protects consumers' interests.
Description of drawings
Fig. 1 is the utility model schematic block circuit diagram;
Fig. 2 is the utility model circuit diagram.
Embodiment
Below in conjunction with accompanying drawing the utility model is described further:
As shown in Figure 2, VCC is that power supply, CG are that optical sensor, D are that light emitting diode, R are that resistance, IC are that operational amplification circuit, Y are hummers.
Producing fluorescence with heterocycle and polycyclic aromatic compound is that principle detects waste oil.Edible oil uses at long-time high temperature, mixes with washing agent and bacterial fermentation can produce or adsorb multiple heterocycle and polycyclic aromatic compound, and heterocycle and polycyclic aromatic compound characteristic feature can produce fluorescence exactly under UV-irradiation.
Ultraviolet ray according to certain wavelength has the physical characteristics that can excite the material that contains fluorescence to send visible light, ultraviolet light source is shone the detection material surface, if detection material has the fluorescence reflection, then detected electric signal is amplified by opto-electronic conversion testing circuit to the fluorescent sensitivity, comparer through setting thresholding relatively after, the level signal triggering sound of generation, optical alarm circuit carry out sound, light is reported to the police.Detect block diagram as shown in Figure 1.
As seen from Figure 2, optical sensor collects the current signal of fluorescence in the photoelectric detective circuit, electric current-the electric pressure converter that constitutes through integrated transporting discharging IC1 is transformed into voltage signal, the threshold value of amplifying by IC2 and IC3 two-stage again and setting with comparer IC4 relatively after, the level signal that produces triggers sound light alarming circuit, and the multivibrator that sound light alarming circuit is made up of 555 timers is sounded a buzzer by hummer (or loudspeaker) and detection alarm lamp Red LED1 D3 flicker realizes warning function.And it is luminous to detect the green luminotron D2 of normal lamp when not detecting fluorescence.
Implement detection method:
1. immerse in the oil sample with kapillary, an oil dripping sample is placed on assigned address on the microslide, level is inserted in the Alarm Detector.
2. press the detection power switch, when photodetector unit detected fluorescence (waste oil) in the oil sample, the hummer red light emitting diodes flicker simultaneously of sounding a buzzer was reported to the police.
3. if photodetector unit does not detect the fluorescence (good oil) in the oil sample, the luminous or flicker of green LED.
Claims (2)
1. the edible oil detector that is mixed with waste oil is differentiated and detected to a fluorescence method, it is characterized in that: the output terminal of opto-electronic conversion testing circuit is connected with the integrated amplifier input end, the integrated amplifier output terminal connects in the voltage comparator input end, and the voltage comparator output terminal is connected with sound light alarming circuit.
2. the edible oil detector that is mixed with waste oil is differentiated and detected to a kind of fluorescence method according to claim 1, it is characterized in that: 2 pin of optical sensor CG are connected with the positive pole of the operational amplification circuit IC1 of photoelectric detective circuit, 1 pin is connected with negative pole, the negative pole of the operational amplification circuit IC2 of output termination the two poles of the earth amplifying circuit of operational amplification circuit IC1, the negative pole of the operational amplification circuit IC3 of output termination the two poles of the earth amplifying circuit of operational amplification circuit IC2, the output terminal of operational amplification circuit IC3 is connected with the positive pole of the operational amplification circuit IC4 of thresholding comparator circuit, power supply connects the negative pole of operational amplification circuit IC4 by clamped resistance R 41 and variable resistor R42, the output terminal of operational amplification circuit IC4 is connected with 555 chips, 4 pin of sound light alarming circuit, 555 chips, 8 pin connect 3 pin by resistance R 53 and luminotron D3, and 3 pin are also by capacitor C 52, hummer Y, serial connection to 5 pin of capacitor C 51.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201787045U CN201707296U (en) | 2010-05-05 | 2010-05-05 | Detector for identifying and detecting edible oil blended with drainage oil by fluorescence method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201787045U CN201707296U (en) | 2010-05-05 | 2010-05-05 | Detector for identifying and detecting edible oil blended with drainage oil by fluorescence method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201707296U true CN201707296U (en) | 2011-01-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201787045U Expired - Fee Related CN201707296U (en) | 2010-05-05 | 2010-05-05 | Detector for identifying and detecting edible oil blended with drainage oil by fluorescence method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201707296U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102645424A (en) * | 2012-03-02 | 2012-08-22 | 宁夏大学 | Method for rapidly detecting edible oil added with illegal cooking oil |
| CN102706837A (en) * | 2012-03-29 | 2012-10-03 | 中南民族大学 | Method and system for identifying swill-cooked dirty oil by photoinduced ultraweak luminescence imaging technology |
| CN103063642A (en) * | 2012-12-26 | 2013-04-24 | 西北农林科技大学 | Portable multi-index fluorescent biosensor device |
| CN103196874A (en) * | 2012-01-09 | 2013-07-10 | 纳米及先进材料研发院有限公司 | Aggregation-induced emission (AIE) illuminant Cbased urine protein detection device for monitoring health of people |
| CN103424413A (en) * | 2013-09-03 | 2013-12-04 | 衡阳师范学院 | Method for detecting illegal cooking oil in radioactive measurement mode |
| CN103901004A (en) * | 2014-03-06 | 2014-07-02 | 北京市理化分析测试中心 | Method for identifying soybean product oil in soybean crude oil |
| CN108775907A (en) * | 2018-06-11 | 2018-11-09 | 佛山市顺德区蚬华多媒体制品有限公司 | Photoelectric sensor circuit and photoelectric sensor |
-
2010
- 2010-05-05 CN CN2010201787045U patent/CN201707296U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103196874A (en) * | 2012-01-09 | 2013-07-10 | 纳米及先进材料研发院有限公司 | Aggregation-induced emission (AIE) illuminant Cbased urine protein detection device for monitoring health of people |
| CN102645424A (en) * | 2012-03-02 | 2012-08-22 | 宁夏大学 | Method for rapidly detecting edible oil added with illegal cooking oil |
| CN102706837A (en) * | 2012-03-29 | 2012-10-03 | 中南民族大学 | Method and system for identifying swill-cooked dirty oil by photoinduced ultraweak luminescence imaging technology |
| CN103063642A (en) * | 2012-12-26 | 2013-04-24 | 西北农林科技大学 | Portable multi-index fluorescent biosensor device |
| CN103424413A (en) * | 2013-09-03 | 2013-12-04 | 衡阳师范学院 | Method for detecting illegal cooking oil in radioactive measurement mode |
| CN103901004A (en) * | 2014-03-06 | 2014-07-02 | 北京市理化分析测试中心 | Method for identifying soybean product oil in soybean crude oil |
| CN103901004B (en) * | 2014-03-06 | 2016-04-13 | 北京市理化分析测试中心 | Differentiate the method being mixed with soybean product oil in soy bean oil |
| CN108775907A (en) * | 2018-06-11 | 2018-11-09 | 佛山市顺德区蚬华多媒体制品有限公司 | Photoelectric sensor circuit and photoelectric sensor |
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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: 20110112 Termination date: 20140505 |