CN102253010A - Device and method for rapidly detecting swill-cooked dirty oil - Google Patents
Device and method for rapidly detecting swill-cooked dirty oil Download PDFInfo
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- CN102253010A CN102253010A CN 201110098263 CN201110098263A CN102253010A CN 102253010 A CN102253010 A CN 102253010A CN 201110098263 CN201110098263 CN 201110098263 CN 201110098263 A CN201110098263 A CN 201110098263A CN 102253010 A CN102253010 A CN 102253010A
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Abstract
The invention relates to the swill-cooked dirty oil detection technology and discloses a device and method for rapidly detecting swill-cooked dirty oil. The device comprises a side-polished fiber optic sensor, a control module and a display module, wherein the two ends of the side-polished fiber optic sensor are respectively connected to a light source and a light power meter; the light source is controlled by the control module; the light power meter is connected with the control module; and the display module is connected with the control module. The device and the method have the following advantages: the light attenuation data of the swill-cooked dirty oil can be rapidly obtained by the side-polished fiber optic sensor and the swill-cooked dirty oil can be accurately distinguished from the edible vegetable oil through analyzing the attenuated light, thus improving the detection accuracy.
Description
Technical field
The present invention relates to the discriminating and the detection technique of waste oil, is a kind of waste oil device for fast detecting and detection method based on side rubbing down Fibre Optical Sensor.
Background technology
Waste oil (water oil and swill oil slightly) is quality, health extreme difference, the unedible oil of severe overweights such as peroxide value, acid value, moisture, carbonyl valency, MDA, aflatoxin B1.Waste oil is to be collected by grease trap, refine through dehydration, the processes such as slag, decolouring and deodorization of taking off then and obtain, it contains a lot of poisonous and hazardous materials, but some illegal retailers are under the temptation of interests, waste oil is added in the edible oil, people healthy caused serious threat.The discriminating and the detection method of waste oil mainly contain determination of moisture method, acid value determination method, cholesterol level determination method, near infrared spectroscopy, conductivity and polar material determination method, content of beary metal determination method at present.The deficiency that conventional detection exists is: detection by quantitative is difficulty relatively, and sense cycle is long.
Summary of the invention
The objective of the invention is to provide that a kind of Measuring Time is short, simple to operate, accuracy of detection is higher, reliability is high, waste oil device for fast detecting and detection method thereof that cost is low.
A kind of waste oil device for fast detecting, comprise side rubbing down Fibre Optical Sensor, control module and display module, the two ends of side rubbing down Fibre Optical Sensor are connected to light source and light power meter respectively, the controlled module controls of light source, light power meter links to each other with control module, and display module links to each other with control module.
Further, side rubbing down Fibre Optical Sensor is fastened in the sensor window seat, side rubbing down optical fiber rubbing down zone is positioned at the window place of sensor window seat, and as the detection window of dispensing sample, side rubbing down Fibre Optical Sensor and sensor window seat smooth and seamless firmly are combined into one.
A kind of waste oil method for quick may further comprise the steps:
(1) grease to be detected is placed side rubbing down Fibre Optical Sensor;
(2) send laser by control module control light source, behind the laser process side rubbing down Fibre Optical Sensor, detect its power and send performance number to control module by light power meter;
(3) control module judges according to the performance number that detects whether grease to be detected belongs to and waste oil is arranged and send display module to show the result.
Waste oil (being mixed with animal oil) has tangible difference with the refractive index of edible vegetable oil, therefore can adopt the method for measuring refractive index to distinguish waste oil and edible vegetable oil.But because the refractive index of waste oil is about 1.46, and the refractive index of edible vegetable oil is about 1.47, therefore only carries out the quantitative test that waste oil mixes according to the difference of refractive index, and error is bigger.And the refractive index of the optical power attenuation value of side rubbing down Fibre Optical Sensor and material has corresponding dull corresponding relation, and refringence 0.01 corresponding sensor optical power attenuation value is about 10db.Therefore, side rubbing down Fibre Optical Sensor not only can be distinguished waste oil and edible vegetable oil, and can quantitative test waste oil doping content.
At first utilize side rubbing down Fibre Optical Sensor to detect laser intensity, the content of waste oil in detected laser intensity and the oil product is connected, set up mathematical model, guarantee the accuracy of measurement result by sensor.After the light process that light source module sends does not have the side rubbing down Fibre Optical Sensor of grease covering, received optical power value A of light power meter record by light power meter; After covering grease on the side rubbing down Fibre Optical Sensor, with optical power value B of light power meter record, optical power value A obtains optical attenuation after cutting optical power value B again, and the size of light decay depreciation has just embodied what of content of waste oil.
Among the present invention, all controlled module controls of light source and light power meter, whether the monitoring light source luminescent is normal, guarantees that light source luminescent intensity is constant, and the control light power meter obtains stable luminous power data.
The present invention compared with prior art has following advantage:
(1) the present invention can obtain the data that waste oil causes exporting optical attenuation fast, by the analysis to pad value, can accurately distinguish waste oil and edible vegetable oil, has improved accuracy of detection and accuracy;
(2) by value analysis, can calculate the content of doping waste oil in edible oil, thereby further waste oil be carried out quantitative test the waste oil attenuate light;
(3) the present invention has utilized refringence to identify waste oil and edible vegetable oil.But the grease refractive index difference is less, and it is bigger to carry out the quantitative test error, and side rubbing down Fibre Optical Sensor can amplify refractive index difference about 1000 times, thereby has improved accuracy of detection and accuracy, and the resolution of waste oil can reach 1%.
Description of drawings
Fig. 1 is the structural representation of apparatus of the present invention.
Fig. 2 is sensor and sensor window seat side view.
Fig. 3 is the side cutaway view of sensor.
Fig. 4 is the graph of a relation of waste oil doping content and optical attenuation.
Embodiment
The temperature and humidity conditions that the present invention is suitable for :-40 ~ 65 ℃, 0-90%RH.
As shown in Figure 1, light source 4 can send laser, can adopt the different wavelength of laser light source; The spectral range of light power meter 5 and the spectral range of light source are complementary; The two ends of side rubbing down Fibre Optical Sensor 1 are connected incident end 4, side rubbing down Fibre Optical Sensor 1, exit end 7 by fibre-optical splice 7 respectively with light source 4 and light power meter 5; The optical fiber that the wavelength of 1 employing of side rubbing down Fibre Optical Sensor and light source 4 is complementary is made side rubbing down optical fiber; Sensor window seat 6 can adopt refractive index less than materials such as the glass of side rubbing down Fibre Optical Sensor 1 fibre core, quartz, jewels, and sensor window seat 6 adopts optics gummed mode to tighten together with sensor 1, as shown in Figure 2.
The laser that light source 4 sends enters light power meter 5 behind side rubbing down Fibre Optical Sensor 1.Write down the optical power value of the sensor that does not cover grease in the light power meter 5 and covered the optical power value of sensor behind the grease, and power signal is passed to control module 2.Control module 2 is subtracted each other two luminous powers, and whether after calling temperature and calibration calculation of parameter, drawing current grease is the conclusion that is mixed with the edible oil of waste oil, and the number percent of waste oil doping, and the result send display module 3 to show.
Embodiment
Install as shown in Figure 1, side rubbing down Fibre Optical Sensor 1 as shown in Figure 3.It is the LASER Light Source of 1310nm that light source 4 adopts wavelength.
Set up calibration model before the device operation, gather the grease of different doping ratios.Configuration is mixed the waste oil ratio and is respectively C
1, C
2... C
nSample, measure their the optical power attenuation value before and after the covering sensor, count Δ P
1, Δ P
2... Δ P
nUtilize linearity and non-linear modeling method, obtain the concentration C and the funtcional relationship of grease between the optical power attenuation value P behind the sensor of grease, C=f (Δ P), as shown in Figure 4.
During detection,
Optical power value P when 1) pick-up transducers does not cover cladding material
0, common P
0Value should be not more than 1dbm;
2) grease to be measured is covered the rubbing down district of side rubbing down Fibre Optical Sensor 1, detect the optical power value P of this moment
1, control module calculates Δ P=P
1-P
0, the funtcional relationship with the C=f (Δ P) of parameter is calibrated in Δ P substitution calculates the waste oil doping content;
3) cleaning sensor window if continue to detect, repeats 1), 2), 3) operation.
The light source of present embodiment and light power meter are optical communication optical device common on the market, and it is lower therefore to install whole cost; And this method can accurately be distinguished vegetable oil and waste oil, and accurately determines the waste oil doping content.
More than each embodiment use various mathematical models and carry out computing, all can accurately distinguish edible vegetable oil and waste oil.Know that the method according to this invention can be carried out various optimizations and combination to mathematical model, protection scope of the present invention is not limited to above embodiment with those skilled in the art know that.
Claims (3)
1. waste oil device for fast detecting, it is characterized in that comprising side rubbing down Fibre Optical Sensor (1), control module (2) and display module (3), the two ends of side rubbing down Fibre Optical Sensor (1) are connected to light source (4) and light power meter (5) respectively, the controlled module of light source (4) (2) control, light power meter (5) links to each other with control module (2), and display module (3) links to each other with control module (2).
2. waste oil device for fast detecting according to claim 1, it is characterized in that side rubbing down Fibre Optical Sensor (1) is fastened in the sensor window seat (6), side rubbing down optical fiber rubbing down zone is positioned at the window place of sensor window seat (6), as the detection window of dispensing sample, side rubbing down Fibre Optical Sensor (1) and sensor window seat (6) smooth and seamless firmly are combined into one.
3. waste oil method for quick is characterized in that may further comprise the steps:
(1) grease to be detected is placed side rubbing down Fibre Optical Sensor (1);
(2) send laser by control module (2) control light source (4), behind the laser process side rubbing down Fibre Optical Sensor (1), detect its power and send performance number to control module (2) by light power meter (5);
(3) control module (2) judges according to the performance number that detects whether grease to be detected belongs to and waste oil is arranged and send display module (3) to show the result.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110098263 CN102253010A (en) | 2011-04-20 | 2011-04-20 | Device and method for rapidly detecting swill-cooked dirty oil |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110098263 CN102253010A (en) | 2011-04-20 | 2011-04-20 | Device and method for rapidly detecting swill-cooked dirty oil |
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| CN102253010A true CN102253010A (en) | 2011-11-23 |
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| CN 201110098263 Pending CN102253010A (en) | 2011-04-20 | 2011-04-20 | Device and method for rapidly detecting swill-cooked dirty oil |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102384891A (en) * | 2011-11-29 | 2012-03-21 | 山东建筑大学 | Illegal cooking oil detection device |
| CN102519918A (en) * | 2011-12-08 | 2012-06-27 | 大连理工大学 | Method for rapid detection of waste oil based on laser-induced breakdown spectroscopy |
| CN102829960A (en) * | 2012-08-28 | 2012-12-19 | 桂林铭瑶电子科技有限公司 | Multifunctional modularized optical fiber tester |
| CN108303123A (en) * | 2018-01-17 | 2018-07-20 | 暨南大学 | A kind of optical fiber sensor head and preparation method and its phosphatidase fibre optical sensor |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1631616A (en) * | 2004-12-30 | 2005-06-29 | 暨南大学 | Optical fiber side edge polishing and grinding apparatus and its processing method |
| US20070098323A1 (en) * | 2002-11-12 | 2007-05-03 | Bo Pi | Reflection-mode fiber sensing devices |
| CN202008467U (en) * | 2011-04-20 | 2011-10-12 | 暨南大学 | Fast detector for illegal cooking oil |
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2011
- 2011-04-20 CN CN 201110098263 patent/CN102253010A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070098323A1 (en) * | 2002-11-12 | 2007-05-03 | Bo Pi | Reflection-mode fiber sensing devices |
| CN1631616A (en) * | 2004-12-30 | 2005-06-29 | 暨南大学 | Optical fiber side edge polishing and grinding apparatus and its processing method |
| CN202008467U (en) * | 2011-04-20 | 2011-10-12 | 暨南大学 | Fast detector for illegal cooking oil |
Non-Patent Citations (3)
| Title |
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| 《Proc.of SPIE》 20071231 C.F.Chan etc. Side-polished and tilted fiber Bragg grating sensors for structural health monitoring applications 65300F-1-65300F- 1-3 第6530卷, * |
| 《山东科技大学学报（自然科学版）》 20100630 黄伟等 地沟油的安全快速检测研究 51-53 1-3 第29卷, 第3期 * |
| 《应用光学》 20110131 唐洁媛等 基于光纤侧边抛磨技术的醋酸浓度光纤传感器 115-119 1-3 第32卷, 第1期 * |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102384891A (en) * | 2011-11-29 | 2012-03-21 | 山东建筑大学 | Illegal cooking oil detection device |
| CN102519918A (en) * | 2011-12-08 | 2012-06-27 | 大连理工大学 | Method for rapid detection of waste oil based on laser-induced breakdown spectroscopy |
| CN102519918B (en) * | 2011-12-08 | 2014-04-09 | 大连理工大学 | Method for rapid detection of waste oil based on laser-induced breakdown spectroscopy |
| CN102829960A (en) * | 2012-08-28 | 2012-12-19 | 桂林铭瑶电子科技有限公司 | Multifunctional modularized optical fiber tester |
| CN108303123A (en) * | 2018-01-17 | 2018-07-20 | 暨南大学 | A kind of optical fiber sensor head and preparation method and its phosphatidase fibre optical sensor |
| CN108303123B (en) * | 2018-01-17 | 2024-02-02 | 暨南大学 | Optical fiber sensing head, preparation method thereof and phospholipase optical fiber sensor |
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Application publication date: 20111123 |