CN206378412U - A kind of optoacoustic spectroscopy detecting system of vegetable and fruit residues of pesticides - Google Patents
A kind of optoacoustic spectroscopy detecting system of vegetable and fruit residues of pesticides Download PDFInfo
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- CN206378412U CN206378412U CN201621186332.4U CN201621186332U CN206378412U CN 206378412 U CN206378412 U CN 206378412U CN 201621186332 U CN201621186332 U CN 201621186332U CN 206378412 U CN206378412 U CN 206378412U
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Abstract
The utility model discloses a kind of optoacoustic spectroscopy detecting system of vegetable and fruit residues of pesticides, photo-acoustic spectrometer connection detector, digital signal processing device connection detector, display device, storage device and supply unit；Photo-acoustic spectrometer is single beam structure, and supply unit includes continual power supply, and display device is connected with output device；Detector includes the spectral emissions probe, spectrum acquisition probe, photo-acoustic spectrometer connector being arranged on detector pedestal；Radiation laser beam is irradiated to vegetable and fruit cleaning solution surface by detector probe, and the photo-acoustic spectrometer is delivered to through the detector probe by diffusing of returning of cleaning solution；Photo-acoustic spectrometer isolates the monochromatic light of different wave length from light source, finally gives the content of material of a certain sign sign, can quickly and easily detect the pesticide concentration remained in vegetable and fruit.
Description
Technical field
The utility model belongs to the Detection Technologies of Pesticide Residues field, more particularly to a kind of optoacoustic of vegetable and fruit residues of pesticides
Spectral detection system.
Background technology
Recently as the gradually expansion of the unprecedented surging and foodstuff planting area of peasant's enthusiasm for production, people in order to up to
To prevention and treatment disease, the purpose of insect pest, start frequently largely to use agricultural chemicals.Exceeded residues of pesticides content is good for the body of the mankind
Health and natural environment bring very big harm, especially organophosphorus residue poisoning in recent years in becoming for rising year by year
Gesture, but as the chronic administration of agricultural chemicals, the amount of application of unit area increase year by year, production cost is increasing, while also tight
Important place harm people's is healthy.Agricultural chemicals is constantly accumulated in human body, though it is obvious anxious that human body will not be caused to occur in the short time
Property poisoning symptom, but chronic hazard can be produced, such as：Organophosphorus and carbamate pesticides class agricultural chemicals can suppress cholinesterase activity, break
The normal function of bad nervous system.Organophosphorus insecticide as neurotoxic substance, can also cause nerve dysfunction, tremble, spirit
Entanglement, speech disorders etc. are showed.The species of pesticide residue with quantity with chemical property, the structure of agricultural chemicals the features such as it is relevant.Agriculture
The residual of medicine is bigger, and the residual quantity in food is more, and the harm to human body is also bigger.The agricultural chemicals remained in food is not only
The acute poisoning of people can be caused, also with chronic toxicity, particularly carcinogenic, teratogenesis, mutagenesis and the influence to offspring have been got over
More to cause the attention of people.Existing vegetable and fruit pesticide residue detection device is complicated, detection speed slow, operate not side
Just, efficiency is low, therefore how to realize that the residual easily and reliably to vegetable and fruit Pesticides chemical fertilizer is detected just have very
Important meaning.
Utility model content
In order to solve the above-mentioned technical problem, the utility model provides a kind of optoacoustic spectroscopy detection of vegetable and fruit residues of pesticides
System, it is intended to solve that existing vegetable and fruit pesticide residue detection device is complicated, detection speed slow, inconvenient operation, effect
The problem of rate is low.
A kind of optoacoustic spectroscopy detecting system of vegetable and fruit residues of pesticides, the optoacoustic spectroscopy inspection of the vegetable and fruit residues of pesticides
Examining system includes photo-acoustic spectrometer, detector, digital signal processing device, display device, storage device and supply unit；
The photo-acoustic spectrometer connects the detector, and the digital signal processing device connects the detector, display
Device, storage device and supply unit；The photo-acoustic spectrometer is single beam structure, and the supply unit includes continual electricity
Source, described display device is connected with output device；
The detector includes detector pedestal, spectral emissions probe, spectrum acquisition probe, photo-acoustic spectrometer connector,
The spectral emissions probe, spectrum acquisition probe are mounted on the detector pedestal；
Described photo-acoustic spectrometer connector one end connects the spectrum acquisition probe, and the other end connects the optoacoustic spectroscopy
Instrument；
The spectral emissions probe includes infrared light supply transmitter, filter wheel, photoacoustic cell, microphone；
The filter wheel is arranged on the infrared light supply transmitter and spectrum acquisition probe is anterior；
The filter wheel installs multigroup different optical filter；
The detector pedestal is provided with detector bottom plate, sample stage, and the sample stage is arranged on base, the sample
Platform both sides are separately installed with the first reflection subassembly and the second reflection subassembly；
The first reflection tune is respectively arranged with first reflection subassembly and the detector bottom plate of the second reflection subassembly bottom
Save frame and the second Reflective regulation frame；
First reflection subassembly and the second reflection subassembly are directed at the spectrum acquisition probe；
The photo-acoustic spectrometer uses single beam structure, produces the radiation laser beam of specific wavelength, radiation laser beam is by described
Detector probe is irradiated to vegetable and fruit cleaning solution surface, is delivered to by diffusing of returning of cleaning solution through the detector probe
The photo-acoustic spectrometer；The photo-acoustic spectrometer isolates the monochromatic light of different wave length from light source or from continuous spectrum；Institute
State detector be used for detect the certain optical signals that are filtered out through the photo-acoustic spectrometer, and be transformed into electric signal, finally with
Digital signal form is exported；The digital signal processing device is handled the data signal collected, obtains a certain sign
The content of material of sign；The display device is used to show the data result after the digital signal processing device processing；It is described
Storage device is used to store the data result after the digital signal processing device processing；The supply unit is used for the number
Word signal processing apparatus provides continual power supply supply.
Further, described display device is also associated with output device.
Further, described display device includes display panel, elementary layer, adhesive linkage, and the elementary layer is arranged on described
The outside of display panel, the adhesive linkage is arranged between the display panel and the elementary layer, wherein, the adhesive linkage
It is adhered to the first edge of the bonding plane of the display panel and the bonding plane for being adhered to the elementary layer of the adhesive linkage
Second edge is mutually displaced along bonding plane direction.
Further, described supply unit includes charge port, power source connection circuit, storage circuit and relay protection circuit.
Further, described power source connection circuit includes the power supply input circuit and at least of at least one connection external power source
The load output circuit of one connection load.
Further, described storage circuit includes the accumulator charging/discharging circuit of connection battery.
The optoacoustic spectroscopy detecting system for the vegetable and fruit residues of pesticides that the utility model is provided is simple in construction, compact conformation,
Rationally, automatic detection can be achieved, for the agriculture chemical composition to being remained in melon, fruit and vegetable cleaning liquid such as organophosphor, organochlorine
And the detection of the heavy metal such as mercury ion, it can be realized by changing corresponding construction and detect the purpose of many kinds of substance, vdiverse in function,
Detection process is easy, it is easy to carry.
Brief description of the drawings
Fig. 1 is that the structure of the optoacoustic spectroscopy detecting system for the vegetable and fruit residues of pesticides that the utility model embodiment is provided is shown
It is intended to；
Fig. 2 is the structural representation for the supply unit that the utility model embodiment is provided；
In figure：1st, photo-acoustic spectrometer；2nd, detector；3rd, digital signal processing device；4th, display device；5th, storage device；
6th, supply unit；6-1, charge port；6-2, power source connection circuit；6-3, storage circuit；6-4, relay protection circuit；7th, wash
Liquid；8th, output device.
Embodiment
For utility model content of the present utility model, feature and effect can be further appreciated that, following examples are hereby enumerated, and
Accompanying drawing is coordinated to describe in detail as follows.
Refer to accompanying drawing 1,2：
The utility model provides a kind of optoacoustic spectroscopy detecting system of vegetable and fruit residues of pesticides, and the vegetable and fruit agricultural chemicals is residual
The optoacoustic spectroscopy detecting system stayed includes photo-acoustic spectrometer 1, detector 2, digital signal processing device 3, display device 4, storage
Device 5 and supply unit 6；The photo-acoustic spectrometer 1 connects the detector 2, and the digital signal processing device 3 connects described
Detector 2, display device 4, storage device 5 and supply unit 6；
The detector 2 includes detector pedestal, spectral emissions probe, spectrum acquisition probe, photo-acoustic spectrometer connector,
The spectral emissions probe, spectrum acquisition probe are mounted on the detector pedestal；
Described photo-acoustic spectrometer connector one end connects the spectrum acquisition probe, and the other end connects the optoacoustic spectroscopy
Instrument；
The spectral emissions probe includes infrared light supply transmitter, filter wheel, photoacoustic cell, microphone；
The filter wheel is arranged on the infrared light supply transmitter and spectrum acquisition probe is anterior；
The filter wheel installs multigroup different optical filter；
The detector pedestal is provided with detector bottom plate, sample stage, and the sample stage is arranged on base, the sample
Platform both sides are separately installed with the first reflection subassembly and the second reflection subassembly；
The first reflection tune is respectively arranged with first reflection subassembly and the detector bottom plate of the second reflection subassembly bottom
Save frame and the second Reflective regulation frame；
First reflection subassembly and the second reflection subassembly are directed at the spectrum acquisition probe；
The photo-acoustic spectrometer 1 uses single beam structure, produces the radiation laser beam of specific wavelength, radiation laser beam is by described
The probe of detector 2 is irradiated to the surface of vegetable and fruit cleaning solution 7, is popped one's head in by the diffusing of returning of cleaning solution 7 through the detector 2
Deliver to the photo-acoustic spectrometer 1；The photo-acoustic spectrometer 1 isolates the monochrome of different wave length from light source or from continuous spectrum
Light；The detector 2 is used to detecting the certain optical signals that are filtered out through the photo-acoustic spectrometer 1, and is transformed into electric signal,
Finally exported with digital signal form；Described 3 pairs of data signals collected of digital signal processing device are handled, and obtain certain
One characterizes the content of material of sign；The display device 4 is used to show the data knot after the digital signal processing device processing
Really；The storage device 5 is used to store the data result after the digital signal processing device 3 is handled；The supply unit 6 is used
Supplied in providing the digital signal processing device 3 continual power supply.
Further, described display device 4 is also associated with output device 8.
Further, described display device 4 includes display panel, elementary layer, adhesive linkage, and the elementary layer is arranged on described
The outside of display panel, the adhesive linkage is arranged between the display panel and the elementary layer, wherein, the adhesive linkage
It is adhered to the first edge of the bonding plane of the display panel and the bonding plane for being adhered to the elementary layer of the adhesive linkage
Second edge is mutually displaced along bonding plane direction.
Further, described supply unit 6 include charge port 6-1, power source connection circuit 6-2, storage circuit 6-3 and after
Electric protection circuit 6-4.
Further, described power source connection circuit 6-2 include at least one connection external power source power supply input circuit and
The load output circuit of at least one connection load.
Further, described storage circuit 6-3 includes the accumulator charging/discharging circuit of connection battery.
Further, the detection method of the optoacoustic spectroscopy detecting system of described vegetable and fruit residues of pesticides, specific steps are such as
Under：
Step：A, the solution example of the agriculture chemical of one group of concentration known of selection measure its near infrared light as calibration set
Spectral intensity, the also referred to as quantitative math-model set up between the material concentration and near infrared light spectral intensity, calibrating patterns；
Step B, the material for taking another group of concentration known again substitute into the near infrared spectrum for predicting sample as forecast set
Calibrating patterns, obtain the predicted value of sample, with the coefficient correlation between predicted value and actual sample active concentration and relative standard
Deviation weighs the degree of reliability of built calibrating patterns, calibrating patterns are constantly trained, obtain this optimal kind of the degree of correlation
The intensity of material-concentration correlation model, and by it is every kind of detection material correlation model be stored in device Digital Signal Processing fill
In putting；
Step C, according to the different material to be detected, select corresponding optical signal processing system and intensity-concentration and close
Gang mould type, the detection of a certain index is carried out using vegetable and fruit cleaning solution sample；
Step D, detect after an index, need to such as detect another material, then changed the light made in advance
Process part is learned, changes the wavelength for filtering out light.
Further, it is described in step A or step B, analyze material concentration and near red using partial least-squares regression method
Outer spectral strength and set up computation model.
The optoacoustic spectroscopy detecting system for the vegetable and fruit residues of pesticides that the utility model is provided is simple in construction, compact conformation,
Rationally, automatic detection can be achieved, for the agriculture chemical composition to being remained in melon, fruit and vegetable cleaning liquid such as organophosphor, organochlorine
And the detection of the heavy metal such as mercury ion, it can be realized by changing corresponding construction and detect the purpose of many kinds of substance, vdiverse in function,
Detection process is easy, it is easy to carry.
Using technical scheme described in the utility model, or those skilled in the art is in technical solutions of the utility model
Under inspiration, similar technical scheme is designed, and reaches above-mentioned technique effect, is to fall into protection model of the present utility model
Enclose.
Claims (4)
1. a kind of optoacoustic spectroscopy detecting system of vegetable and fruit residues of pesticides, it is characterised in that the vegetable and fruit residues of pesticides
Optoacoustic spectroscopy detecting system includes photo-acoustic spectrometer, detector, digital signal processing device, display device, storage device and electricity
Source device；
The photo-acoustic spectrometer connects the detector, the digital signal processing device connect the detector, display device,
Storage device and supply unit；The photo-acoustic spectrometer is single beam structure, and the supply unit includes continual power supply, institute
The display device stated is connected with output device；
The detector includes detector pedestal, spectral emissions probe, spectrum acquisition probe, photo-acoustic spectrometer connector, described
Spectral emissions probe, spectrum acquisition probe are mounted on the detector pedestal；
Described photo-acoustic spectrometer connector one end connects the spectrum acquisition probe, and the other end connects the photo-acoustic spectrometer；
The spectral emissions probe includes infrared light supply transmitter, filter wheel, photoacoustic cell, microphone；
The filter wheel is arranged on the infrared light supply transmitter and spectrum acquisition probe is anterior.
2. the optoacoustic spectroscopy detecting system of vegetable and fruit residues of pesticides as claimed in claim 1, it is characterised in that the filter wheel
Multigroup different optical filter is installed.
3. the optoacoustic spectroscopy detecting system of vegetable and fruit residues of pesticides as claimed in claim 1, it is characterised in that the detector
Pedestal is provided with detector bottom plate, sample stage, and the sample stage is arranged on base, and the sample stage both sides are separately installed with the
One reflection subassembly and the second reflection subassembly；
The first Reflective regulation frame is respectively arranged with first reflection subassembly and the detector bottom plate of the second reflection subassembly bottom
And the second Reflective regulation frame；
First reflection subassembly and the second reflection subassembly are directed at the spectrum acquisition probe.
4. the optoacoustic spectroscopy detecting system of vegetable and fruit residues of pesticides as claimed in claim 1, it is characterised in that described display
Device includes display panel, elementary layer, adhesive linkage, and the elementary layer is arranged on the outside of the display panel, the adhesive linkage
It is arranged between the display panel and the elementary layer, the of the bonding plane for being adhered to the display panel of the adhesive linkage
The second edge of the bonding plane for being adhered to the elementary layer of one edge and the adhesive linkage is mutually displaced along bonding plane direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621186332.4U CN206378412U (en) | 2016-11-04 | 2016-11-04 | A kind of optoacoustic spectroscopy detecting system of vegetable and fruit residues of pesticides |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621186332.4U CN206378412U (en) | 2016-11-04 | 2016-11-04 | A kind of optoacoustic spectroscopy detecting system of vegetable and fruit residues of pesticides |
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| Publication Number | Publication Date |
|---|---|
| CN206378412U true CN206378412U (en) | 2017-08-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621186332.4U Expired - Fee Related CN206378412U (en) | 2016-11-04 | 2016-11-04 | A kind of optoacoustic spectroscopy detecting system of vegetable and fruit residues of pesticides |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108254333A (en) * | 2017-12-14 | 2018-07-06 | 中国科学院南京土壤研究所 | Nitrogenous pesticide residue rapid detection method based on infrared photoacoustic spectra |
-
2016
- 2016-11-04 CN CN201621186332.4U patent/CN206378412U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108254333A (en) * | 2017-12-14 | 2018-07-06 | 中国科学院南京土壤研究所 | Nitrogenous pesticide residue rapid detection method based on infrared photoacoustic spectra |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170804 Termination date: 20181104 |
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| CF01 | Termination of patent right due to non-payment of annual fee |