CN105181636B - Grape pol non-destructive testing device and method - Google Patents
Grape pol non-destructive testing device and method Download PDFInfo
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- CN105181636B CN105181636B CN201510557250.XA CN201510557250A CN105181636B CN 105181636 B CN105181636 B CN 105181636B CN 201510557250 A CN201510557250 A CN 201510557250A CN 105181636 B CN105181636 B CN 105181636B
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Abstract
The present invention provides a kind of grape pol non-destructive testing device and method, device include：Stepper motor on wideband light source, fixed station, darkroom, the grape microscope carrier on the embedded collimation lens first interface and embedded condenser lens second interface, stepping motor rotating shaft that are connect through two, darkroom opposite sides face unthreaded hole with darkroom and spectrometer, host computer, controllor for step-by-step motor and fixed station；Spectrometer is connect through optical fiber with second interface；Wideband light source forms launching spot by collimation lens and irradiates the grape sample to be measured placed on grape microscope carrier in darkroom；Condenser lens will transmit through grape sample light focusing to be measured, then light is transmitted to spectrometer after optical fiber is by focusing, and spectrometer obtains transmitted spectrum according to it and sends supreme position machine；Host computer controls stepper motor rotation by controllor for step-by-step motor and obtains the transmitted spectrum synchronous with stepper motor rotation that spectrometer is sent.The device, which can eliminate grape pip and grape pol is detected, to be influenced, and improves accuracy of detection.
Description
Technical field
The present invention relates to grape pol technical field of nondestructive testing more particularly to a kind of grape pol non-destructive testing device and
Method.
Background technology
At present during red wine is made, in order to ensure red wine quality, need to select the raw material of high quality, that is,
The grape of selection high-quality is needed, then confirms that all aspects of the parameters of grape are heavy to closing for playing for red wine product quality in advance
The effect wanted.For required grape of making wine, pol is to weigh whether it is suitable for the important parameter of brewing.
In the existing grape pol non-destructive testing based on visible near-infrared transmitted spectrum, grape pip in grape to be measured
In the presence of the precision that can influence the detection of grape pol.
In consideration of it, how to eliminate grape pip in grape pol non-destructive testing influences, to improve the detection of grape pol essence
Degree becomes the current technical issues that need to address.
Invention content
For the defects in the prior art, the present invention provides a kind of grape pol non-destructive testing device and method, Ke Yishi
The automatic acquisition of grape Sample Maximal transmitted spectrum position to be measured in existing grape pol non-destructive testing, eliminates grape pip to glucose
The influence of detection is spent, improves the accuracy of detection of grape pol.
In a first aspect, the present invention provides a kind of grape pol non-destructive testing device, including：Wideband light source, embedded collimation are saturating
First interface, grape microscope carrier, darkroom, the second interface of embedded condenser lens, optical fiber, spectrometer, host computer, the stepper motor of mirror
Controller, stepper motor and fixed station；
There are two unthreaded holes for the darkroom tool, are symmetricly set on the opposite two sides in the darkroom, the first interface passes through
First unthreaded hole is connect with the darkroom, and the second interface is connect by second unthreaded hole with the darkroom, the spectrometer
It being connect by the optical fiber with the second interface, the host computer is connect respectively with the spectrometer, controllor for step-by-step motor,
The controllor for step-by-step motor is connect with the stepper motor, and the darkroom is arranged on the fixed station, the stepper motor
It is fixed in the darkroom on the fixed station, the grape microscope carrier is fixed in the shaft of the stepper motor；
Wherein, the light that the wideband light source is sent out forms launching spot by the collimation lens that the first interface embeds and shines
Penetrate the grape sample to be measured placed on the dark indoor grape microscope carrier；The condenser lens that the second interface embeds will be saturating
The light for penetrating the grape sample to be measured is focused, then the light after focusing is transmitted to the spectrometer by optical fiber；
The spectrometer obtains transmitted spectrum according to the light of reception, and the transmitted spectrum is sent to host computer；The host computer
The rotation of the stepper motor is controlled by the controllor for step-by-step motor and to obtain the spectrometer sending with the step
The transmitted spectrum of the rotation synchronization of stepper motor.
Optionally, the center of the collimation lens, the condenser lens and the grape sample to be measured is located at described first
On interface and the center line of the second interface.
Optionally, the grape microscope carrier is equipped with the cylinder of hemispherical groove, the following table of the grape microscope carrier for upper surface
Face is fixed in the shaft of the stepper motor.
Optionally, the wideband light source is halogen tungsten lamp；
And/or
The spectrometer uses visible and near infrared spectrum instrument.
Optionally, the first interface and second interface are SMA905 interfaces；
Correspondingly, the wideband light source is SMA905 interface wideband light sources, and the optical fiber is SMA905 Interface Fibers, described
Spectrometer is SMA905 interface spectrometers.
Optionally, the optical fiber uses silica fibre, and core diameter and numerical aperture are respectively 1mm and 0.48.
Optionally, a diameter of 10mm of the collimation lens obtains the launching spot of 3mm；
And/or
A diameter of 10mm of the condenser lens.
Optionally, the host computer is connect by USB data line with the spectrometer；
And/or
The fixed station is aluminum fixed station.
Second aspect, the present invention provide a kind of grape pol non-destructive testing based on above-mentioned grape pol non-destructive testing device
Method, including：
Host computer sends the first pulse signal to controllor for step-by-step motor, so that the controllor for step-by-step motor is according to
First pulse signal control stepper motor is rotated by 360 °, and obtain spectrometer and pressed in the stepper motor according to default step angle
The acquired default step angle of often rotation one corresponding transmitted spectrum when being rotated by 360 ° according to default step angle, and by acquisition
Transmitted spectrum is numbered according to rotational order is ascending since 1；
According to the transmitted spectrum of acquisition, the corresponding number of the transmitted spectrum obtained and default step angle, stepping electricity is determined
The number of rotation of machine；
According to identified number of rotation, the second pulse signal is sent to controllor for step-by-step motor, so that the stepping is electric
Machine controller is according to determined by second pulse signal control stepper motor according to direction of rotation rotation when being rotated by 360 °
Number of rotation, and obtain the transmitted spectrum that spectrometer obtains at this time；
Third pulse signal is sent to controllor for step-by-step motor, so that the controllor for step-by-step motor is according to the third arteries and veins
Rush signal controling stepping motor according to when being rotated by 360 ° direction of rotation rotate 180 degree, and obtain spectrometer obtain at this time it is saturating
Penetrate spectrum；
The transmitted spectrum and spectrometer obtained during number of rotation according to determined by spectrometer in stepper motor rotation is in step
Stepper motor rotates the transmitted spectrum obtained during 180 degree, and by preset grape pol non-destructive testing mathematical model, acquisition eliminates
The grape pol for the grape sample to be measured that grape pip influences.
Optionally, the transmitted spectrum according to acquisition, the corresponding number of transmitted spectrum that obtains and default step angle,
Determine the number of rotation of stepper motor, including：
The transmitted spectrum of acquisition is compared, is obtained to the big corresponding number of transmitted spectrum, by the number with presetting
Number of rotation of the product of step angle as stepper motor.
As shown from the above technical solution, grape pol non-destructive testing device and method of the invention, can realize glucose
The automatic acquisition of grape Sample Maximal transmitted spectrum position to be measured in non-destructive testing is spent, eliminates what grape pip detected grape pol
It influences, improves the accuracy of detection of grape pol.
Description of the drawings
Fig. 1 is the structure diagram of a kind of grape pol non-destructive testing device that one embodiment of the invention provides；
Fig. 2 is a kind of glucose based on the non-destructive testing device of grape pol shown in Fig. 1 that one embodiment of the invention provides
Spend the flow diagram of lossless detection method.
Specific embodiment
Purpose, technical scheme and advantage to make the embodiment of the present invention are clearer, below in conjunction with the embodiment of the present invention
In attached drawing, clear, complete description is carried out to the technical solution in the embodiment of the present invention, it is clear that described embodiment is only
Only it is part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiment of the present invention, ordinary skill people
The every other embodiment that member is obtained without making creative work, shall fall within the protection scope of the present invention.
Fig. 1 shows a kind of structure diagram for grape pol non-destructive testing device that one embodiment of the invention provides, such as
Shown in Fig. 1, the grape pol non-destructive testing device of the present embodiment, including：The first interface of wideband light source 1, embedded collimation lens 8
2nd, grape microscope carrier 4, darkroom 5, the second interface 13 of embedded condenser lens 10, optical fiber 6, spectrometer 7, host computer 9, stepper motor control
Device 11 processed, stepper motor 12 and fixed station 14；
There are two unthreaded holes for the tool of darkroom 5, are symmetricly set on the opposite two sides in the darkroom 5, the first interface 2 is logical
It crosses first unthreaded hole to connect with the darkroom 5, the second interface 13 is connect by second unthreaded hole with the darkroom 5, described
Spectrometer 7 is connect by the optical fiber 6 with the second interface 13, and the host computer 9 is electric with the spectrometer 7, stepping respectively
Machine controller 11 connects, and the controllor for step-by-step motor 11 is connect with the stepper motor 12, and the darkroom 5 is arranged on described solid
Determine on platform 14, the stepper motor 12 is fixed in the darkroom 5 on the fixed station 14, and the grape microscope carrier 4 is fixed on
In the shaft of the stepper motor 12；
Wherein, the light that the wideband light source 1 is sent out forms incident light by the collimation lens 8 that the first interface 2 embeds
The grape sample 3 to be measured placed on the grape microscope carrier 4 that spot is irradiated in the darkroom 5；The second interface 13 is embedded to gather
The light that focus lens 10 will transmit through the grape sample 3 to be measured is focused, then is transmitted the light after focusing by optical fiber 6
To the spectrometer 7；The spectrometer 7 obtains transmitted spectrum according to the light of reception, and the transmitted spectrum is sent to
Position machine 9；The host computer 9 controls the rotation of the stepper motor 12 by the controllor for step-by-step motor 11 and obtains institute
State the transmitted spectrum synchronous with the rotation of the stepper motor 12 of the transmission of spectrometer 7.
In a particular application, collimation lens 8, the condenser lens 10 and the grape sample 3 to be measured described in the present embodiment
Center be located on the first interface 2 and the center line of the second interface 13.
In a particular application, grape microscope carrier 4 described in the present embodiment is preferably equipped with the cylinder of hemispherical groove for upper surface
Body, grape sample 3 to be measured can stablize placement during ensuring 12 low speed rotation of stepper motor；
The lower surface of the grape microscope carrier 4 is fixed in the shaft of the stepper motor, and whole height ensures Portugal to be measured
The equatorial positions of grape sample 3 are fallen substantially on the first interface 2 and the center line of the second interface 13.
In a particular application, wideband light source 1 described in the present embodiment is preferably for light emitting angle is small, powerful halogen tungsten lamp.
In a particular application, spectrometer 7 described in the present embodiment preferably uses visible and near infrared spectrum instrument.
In a particular application, for optical fiber 6 described in the present embodiment preferably using silica fibre, optical fiber 6 receives the angle of light
It is limited by fiber numerical aperture, numerical aperture is bigger, and acceptance angle is bigger.In order to more preferably receive transmitted ray, described in the present embodiment
The silica fibre of big core high numerical aperture can be selected in optical fiber 6, and core diameter and numerical aperture may respectively be 1mm and 0.48.
In a particular application, for example, first interface 2 described in the present embodiment can be both preferably with second interface 13
SMA905 interfaces；
Correspondingly, the wideband light source 1 be SMA905 interface wideband light sources, the optical fiber 6 be SMA905 Interface Fibers, institute
Spectrometer 7 is stated as SMA905 interface spectrometers.
In a particular application, the diameter of collimation lens 8 described in the present embodiment is preferably 10mm, obtains the incident light of 3mm
Spot；The diameter of the condenser lens 10 is preferably 10mm, and the light of focused transmission grape sample 3 excessively to be measured enters optical fiber 6, can
Improve the efficiency that transmitted ray enters optical fiber 6.
In a particular application, host computer 9 described in the present embodiment can be connect by USB data line with the spectrometer 7.
In a particular application, fixed station 14 described in the present embodiment is preferably aluminum fixed station, convenient for increasing appropriate counterweight
Ensure the stabilization of the stepper motor being fixed thereon 12.
It will be appreciated that grape microscope carrier 4, controllor for step-by-step motor 11 and the composition of fixed station 14 treat test sample described in the present embodiment
Product rotation system.
It should be noted that being embedded in the grape pip almost symmetry surveyed in grape berry is distributed in grape centre position, and
There is certain thickness pulp area among grape pip.When detecting grape pol using visible near-infrared transmitted spectrum, when obtaining spectrum
It can be there are two types of extreme case：
First, when light irradiates grape centre position perpendicular to grape pip, since grape pip density is excessive, through less light
Line obtains minimum transmitted spectrum；
2nd, when light ray parallel irradiates grape in grape pip, since light is through pulp certain thickness among grape pip
, through more light, max transmissive spectrum need not be obtained through grape pip during area.
Therefore, during grape pol non-destructive testing in the case where improving light source utilization ratio, selection obtains the present invention
The max transmissive spectrum that takes establishes the model of grape pol non-destructive testing, can eliminate the influence of grape pip.It obtains maximum saturating
Before penetrating spectrum, need to find the position of max transmissive spectrum, and stepper motor can be turned by setting step angle to accurately control
Dynamic angle, therefore grape sample rotation one week (i.e. 360 degree) to be measured can be driven using stepper motor, obtain each step angle
Corresponding transmitted spectrum is simultaneously numbered from small to large according to the sequence of rotational angle from low to high since 1, and comparison is numbered
Transmitted spectrum finds out the corresponding number of max transmissive spectrum, by by this number with step angular distance product be used as rotation angle come
Driving Stepping Motor rotates to max transmissive spectral position and carries out grape pol detection, realizes and disappear in grape pol non-destructive testing
Except the influence of grape pip.
For example, grape pol non-destructive testing is carried out to kyoto grape sample to be measured using the present embodiment described device,
Wideband light source 1 passes through first with embedded collimation lens 8 using the SMA905 interface halogen tungsten lamps of the small 15W of light emitting angle
SMA905 interfaces 2 obtain the launching spot of 3mm, and the grape microscope carrier 4 being fixed in 12 shaft of stepper motor is equipped with using upper surface
The cylinder of 8mm hemispherical grooves ensures that the hot spot of 3mm is impinged upon in the equatorial positions of kyoto grape sample to be measured substantially.Stepping
Motor 12 is fixed in darkroom 5 on fixed station 14, is reduced caused vibration when stepper motor 12 rotates, is embedded condenser lens 10
Second interface 13 connect with SMA905 interfaces spectrometer 7 by using SMA905 Interface Fibers 6, transmitted ray connects by second
13 inner embedded collector lenses 10 of mouth, aggregation enter in SMA905 Interface Fibers 6, and SMA905 interfaces spectrometer 7 is logical with host computer 9
It crosses USB data line to be attached, obtains stepper motor 12 and often rotate the corresponding transmitted spectrum of a default step angle, preserve and press
Rotational order is ascending since 1 to be numbered.Host computer 9, controllor for step-by-step motor 11 and stepper motor 12 pass through control
Line is attached so that stepper motor is rotated according to the angle of default step angle or setting.
The grape pol non-destructive testing device of the present embodiment, by obtaining the max transmissive spectrum of grape sample to be measured and inciting somebody to action
This spectrum is brought into corresponding mathematical model, obtains the pol of glucose, can realize Portugal to be measured in grape pol non-destructive testing
The influence that grape pip detects grape pol is eliminated in the automatic acquisition of grape Sample Maximal transmitted spectrum position, improves grape pol
Accuracy of detection.
It should be noted that it is former that using for the device that grape pip influences is eliminated in grape pol non-destructive testing described in the present embodiment
It manages and is：
(1) darkroom is opened, grape sample to be measured is positioned on grape microscope carrier, grape is kept to stablize, close darkroom；
(2) it sends certain pulse signal using host computer and controls controllor for step-by-step motor, the step pitch of stepper motor is set
Angle, while PC control spectrum obtains software so that the transmitted spectrum of acquisition is synchronous with stepper motor rotation；
(3) stepper motor is rotated by 360 ° according to the step angle of setting, and host computer preserves the often rotation one that spectrometer obtains
Transmitted spectrum corresponding to step angle is simultaneously numbered according to rotational order is ascending since 1；
(4) transmitted spectrum of serial number has been completed in host computer comparison, finds out the corresponding number of max transmissive spectrum, is used
The number of rotation of this number and the product of step angle as stepper motor, host computer control step motor control with this number of rotation
Device sends corresponding pulses Driving Stepping Motor and rotates to the position, while delete previously stored transmitted spectrum；
(5) host computer preserves the transmitted spectrum for the position grape that spectrometer obtains, upper then using the position as starting point
Machine control controllor for step-by-step motor Driving Stepping Motor is equidirectional to be rotated 180 degree again and preserves at this time saturating of spectrometer acquisition
Penetrate spectrum.
(6) host computer will be rotated in stepper motor determined by number of rotation when the transmitted spectrum that preserves and in stepper motor
It rotates the transmitted spectrum preserved during 180 degree and brings preset grape pol non-destructive testing mathematical model into, be eliminated grape pip
The grape pol of the grape sample to be measured influenced.
Fig. 2 shows a kind of Portugals based on the non-destructive testing device of grape pol shown in Fig. 1 that one embodiment of the invention provides
Grape pol lossless detection method, as shown in Fig. 2, the grape pol lossless detection method of the present embodiment is as described below.
201st, host computer to controllor for step-by-step motor send the first pulse signal so that the controllor for step-by-step motor according to
The first pulse signal control stepper motor is rotated by 360 ° according to default step angle, and obtains (and preservation) spectrometer in institute
State the corresponding transmitted light of the default step angle of often rotation acquired when stepper motor is rotated by 360 ° according to default step angle one
Spectrum, and the transmitted spectrum of acquisition is numbered according to rotational order is ascending since 1.
202nd, according to the transmitted spectrum of acquisition, the corresponding number of the transmitted spectrum obtained and default step angle, step is determined
The number of rotation of stepper motor.
203rd, according to identified number of rotation, the second pulse signal is sent to controllor for step-by-step motor, so that the step
Stepper motor controller controls stepper motor true according to direction of rotation rotation institute when being rotated by 360 ° according to second pulse signal
Fixed number of rotation, and obtain the transmitted spectrum that (and preservation) spectrometer obtains at this time.
204th, third pulse signal is sent to controllor for step-by-step motor, so that the controllor for step-by-step motor is according to described the
Three pulse signals control stepper motor to rotate 180 degree according to direction of rotation when being rotated by 360 °, and obtain (and preservation) spectrometer
The transmitted spectrum obtained at this time.
205th, the transmitted spectrum and spectrometer obtained during number of rotation according to determined by spectrometer in stepper motor rotation
The transmitted spectrum obtained when stepper motor rotates 180 degree, by preset grape pol non-destructive testing mathematical model, acquisition disappears
In addition to the grape pol for the grape sample to be measured that grape pip influences.
In a particular application, step 202 described in the present embodiment, may particularly include：
The transmitted spectrum of acquisition is compared, is obtained to the big corresponding number of transmitted spectrum, by the number with presetting
Number of rotation of the product of step angle as stepper motor.
The grape pol lossless detection method of the present embodiment, it is upper in grape pol non-destructive testing device shown in Fig. 1
It is realized in machine, can realize the automatic acquisition of grape Sample Maximal transmitted spectrum position to be measured in grape pol non-destructive testing, disappear
Except the influence that grape pip detects grape pol, the accuracy of detection of grape pol is improved.
One of ordinary skill in the art will appreciate that：Realizing all or part of step of above-mentioned each method embodiment can lead to
The relevant hardware of program instruction is crossed to complete.Aforementioned program can be stored in a computer read/write memory medium.The journey
Sequence when being executed, performs the step of including above-mentioned each method embodiment；And aforementioned storage medium includes：ROM, RAM, magnetic disc or
The various media that can store program code such as person's CD.
Finally it should be noted that：The above embodiments are only used to illustrate the technical solution of the present invention., rather than its limitations；To the greatest extent
Pipe is described in detail the present invention with reference to foregoing embodiments, it will be understood by those of ordinary skill in the art that：Its according to
Can so modify to the technical solution recorded in foregoing embodiments either to which part or all technical features into
Row equivalent replacement；And these modifications or replacement, it does not separate the essence of the corresponding technical solution, and the claims in the present invention are limited
Fixed range.
Claims (9)
1. a kind of grape pol non-destructive testing device, which is characterized in that including：Wideband light source, embedded collimation lens first connect
Mouth, grape microscope carrier, darkroom, second interface, optical fiber, spectrometer, host computer, controllor for step-by-step motor, the step for embedding condenser lens
Stepper motor and fixed station；
There are two unthreaded holes for the darkroom tool, are symmetricly set on the opposite two sides in the darkroom, the first interface passes through first
A unthreaded hole is connect with the darkroom, and the second interface is connect by second unthreaded hole with the darkroom, and the spectrometer passes through
The optical fiber is connect with the second interface, and the host computer is connect respectively with the spectrometer, controllor for step-by-step motor, described
Controllor for step-by-step motor is connect with the stepper motor, and the darkroom is arranged on the fixed station, and the stepper motor is in institute
It states and is fixed in darkroom on the fixed station, the grape microscope carrier is fixed in the shaft of the stepper motor；
Wherein, the light that the wideband light source is sent out forms launching spot by the collimation lens that the first interface embeds and irradiates institute
State the grape sample to be measured placed on the dark indoor grape microscope carrier；The condenser lens that the second interface embeds will transmit through
The light of the grape sample to be measured is focused, then the light after focusing is transmitted to the spectrometer by optical fiber；It is described
Spectrometer obtains transmitted spectrum according to the light of reception, and the transmitted spectrum is sent to host computer；The host computer passes through
The controllor for step-by-step motor controls the rotation of the stepper motor and obtains the electric with the stepping of the spectrometer transmission
The transmitted spectrum of the rotation synchronization of machine.
2. the apparatus according to claim 1, which is characterized in that the collimation lens, the condenser lens and described to be measured
The center of grape sample is located on the first interface and the center line of the second interface.
3. the apparatus according to claim 1, which is characterized in that the grape microscope carrier is equipped with hemispherical groove for upper surface
Cylinder, the lower surface of the grape microscope carrier are fixed in the shaft of the stepper motor.
4. the apparatus according to claim 1, which is characterized in that the wideband light source is halogen tungsten lamp；
And/or
The spectrometer uses visible and near infrared spectrum instrument.
5. the apparatus according to claim 1, which is characterized in that the first interface is that SMA905 connects with second interface
Mouthful；
Correspondingly, the wideband light source be SMA905 interface wideband light sources, the optical fiber be SMA905 Interface Fibers, the spectrum
Instrument is SMA905 interface spectrometers.
6. the apparatus according to claim 1, which is characterized in that the optical fiber uses silica fibre, core diameter and numerical aperture
Respectively 1mm and 0.48.
7. the apparatus according to claim 1, which is characterized in that a diameter of 10mm of the collimation lens obtains entering for 3mm
Penetrate hot spot；
And/or
A diameter of 10mm of the condenser lens.
8. the apparatus according to claim 1, which is characterized in that the host computer passes through USB data line and the spectrometer
Connection；
And/or
The fixed station is aluminum fixed station.
9. a kind of grape pol non-destructive testing side based on any one of the claim 1-8 grape pol non-destructive testing devices
Method, which is characterized in that including：
Host computer sends the first pulse signal to controllor for step-by-step motor, so that the controllor for step-by-step motor is according to described first
Pulse signal control stepper motor is rotated by 360 °, and obtain spectrometer in the stepper motor according to pre- according to default step angle
The acquired default step angle of often rotation one corresponding transmitted spectrum when if step angle is rotated by 360 °, and by the transmission of acquisition
Spectrum is numbered according to rotational order is ascending since 1；
According to the transmitted spectrum of acquisition, the corresponding number of the transmitted spectrum obtained and default step angle, stepper motor is determined
Number of rotation, including：The transmitted spectrum of acquisition is compared, the maximum corresponding number of transmitted spectrum is obtained, this is numbered
With the number of rotation of the product of default step angle as stepper motor；
According to identified number of rotation, the second pulse signal is sent to controllor for step-by-step motor, so that the stepper motor control
Device processed rotation according to determined by second pulse signal control stepper motor according to direction of rotation rotation when being rotated by 360 °
The number of degrees, and obtain the transmitted spectrum that spectrometer obtains at this time；
Third pulse signal is sent to controllor for step-by-step motor, so that the controllor for step-by-step motor is believed according to the third pulse
Number control stepper motor rotates 180 degree according to direction of rotation when being rotated by 360 °, and obtains the transmitted light that spectrometer obtains at this time
Spectrum；
The transmitted spectrum and spectrometer obtained during number of rotation according to determined by spectrometer in stepper motor rotation is in stepping electricity
Machine rotates the transmitted spectrum obtained during 180 degree, and by preset grape pol non-destructive testing mathematical model, acquisition eliminates grape
The grape pol for the grape sample to be measured that seed influences.
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| EP3409100A1 (en) * | 2017-05-29 | 2018-12-05 | Institut National de la Recherche Agronomique (INRA) | Phenotyping apparatus |
| CN107167441A (en) * | 2017-07-02 | 2017-09-15 | 广东技术师范学院 | The method that double light path and multiposition modulated light sources measure complicated solution component content |
| CN115032172A (en) * | 2019-12-06 | 2022-09-09 | 天津中医药大学 | Bottled oral liquid quality nondestructive rapid detection device based on near infrared spectrum |
| CN112649377A (en) * | 2020-12-28 | 2021-04-13 | 重庆电子工程职业学院 | Data acquisition device suitable for fruit sugar degree nondestructive test |
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