CN111610162A - Portable fruit nondestructive rapid testing device - Google Patents
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- G—PHYSICS
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- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
- G01N21/25—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
- G01N21/31—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry
- G01N21/35—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light
- G01N21/359—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light using near infrared light
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/01—Arrangements or apparatus for facilitating the optical investigation
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
- G01N21/25—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
- G01N21/31—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry
- G01N21/35—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light
- G01N21/3563—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light for analysing solids; Preparation of samples therefor
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Abstract
The invention relates to a portable fruit nondestructive fast testing device, which comprises an integrating sphere, a bromine tungsten lamp light source component, a tray, a first optical fiber, a second optical fiber, two optical fiber spectrometers, an electrical controller, an antipollution mirror, a converging optical lens and an optical fiber light inlet component, wherein light emitted by the bromine tungsten lamp light source component is incident on a tested fruit, reaches the converging optical lens of a testing area through the tested fruit after being transmitted inside the tested fruit, is transmitted to the corresponding optical fiber spectrometers through the first optical fiber, the second optical fiber and the optical fiber, the optical fiber spectrometers are connected with the electrical controller, the electrical controller calculates information such as sugar degree, acidity, hardness and the like of the tested fruit and displays the information in real time through a touch liquid crystal display screen, so that the fruits can be rapidly and nondestructively tested in real time on sites such as orchards, storage, warehouses, fruit wholesale and retail, and the like Low cost, high precision, convenient carrying, wide market prospect and wide application market.
Description
Technical Field
The invention relates to the technical field of optical testing, in particular to a portable fruit nondestructive rapid testing device.
Background
The fruit cultivation history in China is long, the resources are rich, the fruits are the third largest planting industry in China, the fruit yield in China is the top of the world, and the fruit storage capacity is only 10%. With the improvement of the living standard of consumers, the quality of fruits is pursued to be higher and higher, and the quality of the fruits is closely related to the links of maturity, storage, transportation and the like during picking. Therefore, before the fruits are picked, the sugar degree, the acidity and the hardness of the fruits are subjected to nondestructive testing, the optimal fruit picking period is determined, and the fruits are ensured to have the optimal taste and the optimal nutritional ingredients; the storage effect of the fruits can be tested on one hand through testing before the fruits are stored and transported to the market, on the other hand, the unqualified fruits are removed as early as possible through testing, and the 'high-quality' fruits are provided for consumers. The rapid analysis technology for the quality of fruits and vegetables in Japan, America, European Union and the like is advanced, the rapid analysis technology has the technology and equipment for rapidly detecting pesticide residues, textures, defects, pathological changes, moisture, starch, dietary fibers, vitamins, carotene, reducing sugar, crude protein, dry matters, soluble solid matters, organic acid and the like in the fruits and vegetables, and realizes online detection; compared with developed countries, the processing level of fruits in China is low, the rotten fruit rate is high, the detection and separation technology is lagged behind, the fruits in the same batch are not good and good, and the competitiveness is lacked in the world market. The traditional manual sorting method has low efficiency, high error rate and high labor intensity, so that the development of a nondestructive, portable, simple, efficient and high-accuracy fruit detection system is extremely necessary. At present, the sugar degree and acidity of fruits are mainly tested by chemical methods, i.e. fruits are made into fruit juice and then are tested by chemical reagents. The detection efficiency is low, and only the spot check of damaged fruits can be carried out. There are also some methods using optical testing, but the test error is large due to the weak signal obtained. At present, a large-sized near-infrared spectrometer is generally used for sampling detection, the sugar degree, the acidity and the like of fruits are mainly detected, and the large-sized near-infrared spectrometer has the defects of large volume, high price, poor precision and the like, is only applied to scientific research institutions, and cannot be widely used in industries or enterprises.
Disclosure of Invention
In order to solve the problem of the existing fruit rapid nondestructive testing, the invention provides a portable nondestructive rapid testing device for performing nondestructive testing on the sugar content, acidity and hardness of fruits by testing the transmitted near infrared spectrum light radiation information of the fruits.
The technical scheme adopted by the invention for solving the technical problem is as follows:
a portable fruit nondestructive rapid testing device is characterized by comprising an integrating sphere, a bromine tungsten lamp light source component, a tray, a testing component, a first optical fiber spectrometer, a second optical fiber spectrometer and an electrical controller, wherein the testing component comprises an anti-pollution mirror, a convergence optical lens and an optical fiber light inlet component;
the device comprises an integrating sphere, a tungsten bromide lamp light source assembly, an anti-pollution mirror, a converging optical lens, a first optical fiber spectrometer, a second optical fiber spectrometer and an electrical controller, wherein the tungsten bromide lamp light source assembly is arranged on the inner wall of the integrating sphere, a tray used for bearing a detected fruit is positioned inside the integrating sphere, near infrared light emitted by the tungsten bromide lamp light source assembly penetrates through the detected fruit and then sequentially passes through the anti-pollution mirror and the converging optical lens, the converging optical lens converges light to the optical fiber light inlet assembly, the optical fiber light inlet assembly is connected with light inlets of the first and second output optical fibers, two light outlets of the first and second output optical fibers are correspondingly connected with the first optical fiber spectrometer and the second optical fiber spectrometer respectively, and the first optical fiber spectrometer and the second optical fiber spectrometer are connected with the;
the electrical controller comprises a touch liquid crystal display screen, a test starting switch, a power switch, a control module, a spectrum database module and a power supply, wherein the touch liquid crystal display screen is used for receiving an instruction input by a user and displaying a test result, after the test starting switch is triggered, the control module controls the light source assembly of the bromine tungsten lamp to emit light and controls the first optical fiber spectrometer and/or the second optical fiber spectrometer to collect spectrum data, the first optical fiber spectrometer and/or the second optical fiber spectrometer transmit collected spectrum radiation information to the control module, a fruit test calculation algorithm is integrated in the control module, and the control module generates a test result according to the spectrum characteristic corresponding to a tested fruit stored in the spectrum database module, the spectrum radiation information and the fruit test calculation algorithm, and storing the test result, and controlling the touch liquid crystal display screen to display the test result.
The invention provides a portable fruit nondestructive rapid testing device which comprises an integrating sphere, a bromine tungsten lamp light source, a near infrared spectrometer, an electric controller and the like, wherein part of light emitted by the bromine tungsten lamp light source component directly enters a tested fruit, the rest part of light enters the inner wall of the integrating sphere, is reflected by the inner wall coating with high reflectivity of the integrating sphere and then enters the tested fruit again to form an omnidirectional incident light source, enters the tested fruit, is transmitted inside the tested fruit and then reaches a converging optical lens of a testing area through the tested fruit, the converging optical lens converges the light to a light inlet of one-in two-out optical fibers and transmits the light to corresponding optical fiber spectrometers through the one-in two-out optical fibers, the optical fiber spectrometers collect spectral radiation information, the electric controller utilizes spectral characteristics corresponding to the fruit type in a spectral database, the spectral radiation information collected by the optical fiber spectrometers and a fruit testing calculation algorithm, the portable fruit nondestructive rapid testing device has the characteristics of simple structure, small volume, low cost, high precision and the like, is convenient to carry, and has wide market prospect and application market.
Drawings
FIG. 1 is a schematic structural diagram of a portable fruit nondestructive rapid testing device of the present invention;
FIG. 2 is a schematic diagram of the structure of a background test assembly and a standard diffuse transmission assembly;
in the figure, 1, an integrating sphere; 1-1, integrating an upper hemisphere; 1-2, integrating sphere lower hemisphere; 2. a bromine tungsten lamp light source assembly; 3. a tray; 4. one input and two output optical fibers; 5. a first fiber optic spectrometer; 6. a second fiber optic spectrometer; 7. an electrical controller; 7-1, touch-controlling the liquid crystal display screen; 7-2, testing a starting switch; 7-3, a power switch; 8. an anti-pollution mirror; 9. a converging optical lens; 10. an optical fiber light inlet component; 11. the fruit to be tested; 12. a remote control terminal; 13. a background test component; 14. a standard diffuse transmission component; 15. a lens holder.
Detailed Description
The technical solution of the present invention will be described in detail with reference to the accompanying drawings and preferred embodiments.
FIG. 1 is a schematic structural diagram of a portable fruit nondestructive rapid testing device of the present invention. As shown in figure 1, the invention provides a portable fruit nondestructive rapid testing device, which comprises an integrating sphere 1, a bromine tungsten lamp light source component 2, a tray 3, a testing component consisting of a pollution-proof mirror 8, a converging optical lens 9 and an optical fiber light inlet component 10, a first optical fiber spectrometer 4, a second optical fiber spectrometer 4, a first optical fiber spectrometer 5, a second optical fiber spectrometer 6 and an electrical controller 7, wherein the integrating sphere 1 comprises an integrating sphere upper hemisphere 1-1 and an integrating sphere lower hemisphere 1-2, the integrating sphere upper hemisphere 1-1 and the integrating sphere lower hemisphere 1-2 take a hemisphere center as a boundary line and can be conveniently opened and closed, a handle is arranged on the integrating sphere upper hemisphere 1-1, the integrating sphere 1 is a hollow spherical cavity, preferably, the inner wall surface of the integrating sphere 1 is plated with a silver film and a protective film, and the silver film has high reflectivity for the bromine tungsten lamp light source component 2, or the inner wall surface of the integrating sphere 1 is sprayed with a high-reflectivity polytetrafluoroethylene coating, part of light emitted by the bromine-tungsten lamp light source assembly 2 directly enters the tested fruit 11, and the rest part of light enters the inner wall of the integrating sphere 1, is reflected by the silver film or the polytetrafluoroethylene coating and then enters the tested fruit 11 again. The size of the integrating sphere 1 can be selected according to actual needs, for example, the inner diameter of the integrating sphere 1 can be 200 mm.
The setting of bromine tungsten lamp light source subassembly 2 is on the inner wall of integrating sphere 1, the quantity of bromine tungsten lamp light source subassembly 2 can be set for according to actual need in this embodiment, for example the quantity of bromine tungsten lamp light source subassembly 2 is more than 6 to guarantee the signal strength that the fiber optic spectrometer gathered, bromine tungsten lamp light source subassembly 2 sets up on the inner wall of integrating sphere 1, optionally, 2 circumference evenly distributed of 6 bromine tungsten lamp light source subassemblies are on the lower hemisphere of integrating sphere 1, and the position of bromine tungsten lamp light source subassembly 2 satisfies following condition: the included angle between the connecting line of each light source component 2 of the bromine-tungsten lamp and the sphere center of the integrating sphere 1 and the horizontal plane where the sphere center is located is 20-40 degrees. When the bromine tungsten lamp light source component 2 is located in the position within the included angle range of 20 degrees to 40 degrees, most of emergent light can be incident on the measured fruit 11, the signal collected by the optical fiber spectrometer is strongest, if the included angle between the connecting line of the bromine tungsten lamp light source component 2 and the sphere center of the integrating sphere 1 and the horizontal plane where the sphere center is located is greater than 40 degrees, some light can be shielded by the base, and if the included angle is less than 20 degrees, the bromine tungsten lamp light source component 2 can not be installed in the lower hemisphere 1-2 of the integrating sphere.
A tray 3 for carrying the fruit 11 to be measured is located inside the integrating sphere 1. Preferably, the tray 5 is made of soft rubber, and the soft rubber is adopted as the material of the tray 5, so that the fruit 11 to be tested is in contact with the soft rubber, the fruit can be prevented from being damaged, and other stray light is prevented from entering the testing assembly.
The testing component is installed under the lower hemisphere 1-2 of the integrating sphere and is located below a tested fruit 11 and a tray 3, the testing component comprises an anti-pollution mirror 8, a convergence optical lens 9 and an optical fiber light inlet component 10 which are sequentially arranged from top to bottom, the optical fiber light inlet component 10 is connected with a light inlet of a first light inlet and a second light outlet of the optical fiber 4, the two light outlets of the first light inlet and the second light outlet of the optical fiber 4 are respectively connected with a first optical fiber spectrometer 5 and a second optical fiber spectrometer 6 correspondingly, and the first optical fiber spectrometer 5 and the second optical fiber spectrometer 6 are respectively connected with an electrical controller 7 through a control cable and a data transmission cable. Near-infrared light emitted by the bromine tungsten lamp light source component 2 penetrates through a detected fruit 11 and then sequentially passes through the anti-pollution mirror 8 and the converging optical lens 9, the converging optical lens 9 converges light to the optical fiber light inlet component 10, the optical fiber light inlet component 10 enables the light to be converged and coupled into the first inlet optical fiber 4 and the second outlet optical fiber 4, and the first inlet optical fiber 4 and the second outlet optical fiber 4 respectively transmit the light to the first optical fiber spectrometer 5 and the second optical fiber spectrometer 6. In order to implement the measurement in the large spectral range, preferably, the wavelength range of the first fiber spectrometer 5 is 600nm to 1100nm, the wavelength range of the second fiber spectrometer 6 is 900nm to 1700nm in this embodiment, one or a combination of the two fiber spectrometers can be selected in the portable fruit nondestructive rapid testing device according to the actual fruit type of the fruit to be tested, the spectral range can be expanded to 600nm to 1700nm by combining the first fiber spectrometer 5 and the second fiber spectrometer 6, and a single fiber spectrometer cannot implement the measurement in the large range, so that the type of the fruit to be tested can be expanded by using two fiber spectrometers, and different spectral ranges can be selected for different fruits, so that different fruits have better testing effects in corresponding spectral ranges.
Optionally, still referring to fig. 1, the testing assembly further includes a lens holder 15, the contamination prevention mirror 8 and the converging optical lens 9 are both fixedly mounted on the lens holder 15, and a vacuum is drawn between the contamination prevention mirror 8 and the converging optical lens 9, and the lens holder 15 is fixedly connected with the side wall of the integrating sphere 1. The anti-pollution mirror 8 and the convergent optical lens 9 are stably installed with the integrating sphere 1 through the lens support 15, and meanwhile, the lens support 15 also provides stable support for the tray 3 and the measured fruit 11 on the tray. Vacuum is formed between the anti-pollution mirror 8 and the converging optical lens 9, so that the converging optical lens 9 is prevented from being polluted by external pollutants, and the testing precision is prevented from being influenced.
The electric controller 7 is used for controlling a light source switch of the bromine tungsten lamp light source component 2 and spectrum data acquisition of the optical fiber spectrometer through internal communication instructions, and a fruit spectrum database and a fruit testing calculation algorithm are integrated in the electric controller. Referring to fig. 1, the electrical controller 7 includes a touch liquid crystal display 7-1, a test start switch 7-2, a power switch 7-3, a control module, a spectrum database module and a power supply, wherein the touch liquid crystal display 7-1, the test start switch 7-2 and the power switch 7-3 are exposed outside the electrical controller 7, the control module, the spectrum database module and the power supply are located inside the electrical controller 7, and the touch liquid crystal display 7-1 is configured to receive an instruction input by a user, including selecting a test type, a type and a variety of a fruit to be tested, a type of an optical fiber spectrometer, a test duration, a light source intensity and the like, and display a test result. After a user inputs an instruction through the touch liquid crystal display 7-11, the user presses the test starting switch 7-2, after the test starting switch 7-2 is triggered, the control module controls the light source component 2 of the bromine tungsten lamp to emit light and controls the first optical fiber spectrometer 5 and/or the second optical fiber spectrometer 6 to collect spectral data, the first optical fiber spectrometer 5 and/or the second optical fiber spectrometer 6 sends collected spectral radiation information to the control module, a fruit test calculation algorithm is integrated in the control module, the fruit test calculation algorithm in the embodiment can be realized by adopting a method for testing fruits based on a near infrared spectrum technology in the prior art, the control module generates a test result according to spectral characteristics, spectral radiation information and a fruit test calculation algorithm corresponding to a tested fruit stored in the spectral database module, and simultaneously stores the test result, and controlling the touch liquid crystal display screen 7-1 to display a test result, wherein the test result comprises a spectral curve of the tested fruit and the calculated information of the sugar degree, acidity and hardness of the tested fruit.
The invention provides a portable fruit nondestructive rapid testing device which comprises an integrating sphere, a bromine tungsten lamp light source, a near infrared spectrometer, an electric controller and the like, wherein part of light emitted by the bromine tungsten lamp light source component directly enters a tested fruit, the rest part of light enters the inner wall of the integrating sphere, is reflected by the inner wall coating with high reflectivity of the integrating sphere and then enters the tested fruit again to form an omnidirectional incident light source, enters the tested fruit, is transmitted inside the tested fruit and then reaches a converging optical lens of a testing area through the tested fruit, the converging optical lens converges the light to a light inlet of one-in two-out optical fibers and transmits the light to corresponding optical fiber spectrometers through the one-in two-out optical fibers, the optical fiber spectrometers collect spectral radiation information, the electric controller utilizes spectral characteristics corresponding to the fruit type in a spectral database, the spectral radiation information collected by the optical fiber spectrometers and a fruit testing calculation algorithm, the portable fruit nondestructive rapid testing device has the characteristics of simple structure, small volume, low cost, high precision and the like, is convenient to carry, and has wide market prospect and application market.
Optionally, the electrical controller 7 further comprises a remote data transmission module connected to the control module, the control module communicates with the remote control terminal 12 through the remote data transmission module, as shown in fig. 1, and the remote control terminal 12 performs remote control and data transmission on the control module. Preferably, the remote control terminal 12 is a computer or a smart phone, the remote control terminal 12 communicates with the control module through a remote data transmission module, and a user performs remote control and data transmission on the portable fruit nondestructive rapid testing device through an application program on the remote control terminal 12. Optionally, the remote data transmission module adopts a bluetooth communication method or a WIFI communication method, and the electrical controller 7 and the remote control terminal 12 communicate with each other through bluetooth or WIFI.
Further, as shown in fig. 2, the portable fruit nondestructive rapid testing device of the present invention further comprises a background testing component 13 and a standard diffuse transmission component 14 fixedly connected to the background testing component 13, wherein the background testing component 13 is a black-dyed cylindrical aluminum block, and the standard diffuse transmission component 14 is a polytetrafluoroethylene cylinder. The background test assembly 13 and the standard diffuse transmission assembly 14 may be mounted together by screws. The background testing component 13 is a black-dyed cylindrical aluminum block with the thickness of 5mm and the diameter of 40mm, and the standard diffuse transmission component 14 is a polytetrafluoroethylene cylinder with the height of 100mm and the diameter of 35 mm. When testing the dark field background signal, one section of the background testing component 13 is connected with the tray 3, the background testing component 13 mainly functions to shield light rays and prevent stray light from entering the testing component and the first-in-second-out optical fiber 4 at the bottom of the testing component through the tray 3, and at the moment, the signal of the testing optical fiber spectrometer when no light exists is the testing dark field signal. When standard testing is carried out, the top end of the standard diffuse transmission assembly 14 is connected with the tray 3, the standard diffuse transmission assembly 14 serves as a reference piece, after light emitted by the bromine-tungsten lamp light source assembly 2 enters the standard diffuse transmission assembly 14, after diffuse transmission, the light enters the first-in-second-out optical fiber 4 through the tray 3 and the testing assembly, and then the maximum signal is obtained. Before the portable fruit nondestructive rapid testing device starts to formally test the fruit, the background testing component 13 and the standard diffuse transmission component 14 are used for dark field testing and standard testing, and corresponding spectrums are stored, so that the precision and accuracy of the testing result are improved.
The portable fruit nondestructive rapid testing device provided by the invention comprises the following testing steps:
(1) supplying power to the equipment, turning on a power switch 7-3, electrifying the device, starting the device, and preheating for 15 minutes;
(2) selecting a test type as a standard test on the touch liquid crystal display screen 7-1;
(3) taking down the upper integrating sphere hemisphere 1-1, placing a standard diffuse transmission assembly 14 on the tray 3, and closing the upper integrating sphere hemisphere 1-1;
(4) clicking a test starting switch 7-2, controlling to start a bromine tungsten lamp light source component 2 by an electrical controller 13, controlling a first fiber spectrometer 5 and/or a second fiber spectrometer 6 to collect spectrum data, completing the test within a preset test time period, such as 5s, displaying a test spectrum curve by a touch liquid crystal display 7-1, prompting the test to be finished, and automatically storing standard test data by the electrical controller 7;
(5) selecting a test type as a test dark field signal from the touch liquid crystal display screen 7-1, taking down the integrating sphere upper hemisphere 1-1, placing the background test component 13 on the tray 3 to ensure that all light is shielded, and closing the integrating sphere upper hemisphere 1-1;
(6) clicking a test starting switch 7-2 to finish dark field signal acquisition, and automatically storing dark field signal data by an electrical controller 7;
(7) selecting the type and variety of fruits to be tested on the touch liquid crystal display screen 7-1, taking down the integrating sphere upper hemisphere 1-1, the background testing component 13 and the standard diffuse transmission component 14, and placing the fruits to be tested on the tray 3;
(8) clicking the test starting switch 7-2 to finish the fruit signal acquisition, displaying the spectral curve of the tested fruit and the information of the sugar degree, acidity, hardness and the like of the tested fruit on the touch liquid crystal display 7-1 after the test is finished, and storing the test result in a corresponding file.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (10)
1. A portable fruit nondestructive rapid testing device is characterized by comprising an integrating sphere (1), a bromine tungsten lamp light source component (2), a tray (3), a testing component, a first optical fiber spectrometer (5), a second optical fiber spectrometer (6) and an electrical controller (7), wherein the testing component comprises an anti-pollution mirror (8), a convergence optical lens (9) and an optical fiber light inlet component (10);
the light source component (2) of the bromine tungsten lamp is arranged on the inner wall of the integrating sphere (1), a tray (3) for bearing the tested fruit (11) is positioned inside the integrating sphere (1), near infrared light emitted by the bromine tungsten lamp light source component (2) penetrates through a detected fruit (11) and then sequentially passes through the anti-pollution mirror (8) and the converging optical lens (9), the converging optical lens (9) converges light rays to the optical fiber light inlet component (10), the optical fiber light inlet component (10) is connected with the light inlets of the one-in two-out optical fibers (4), two light outlets of the first optical fiber (4) and the second optical fiber (4) are respectively and correspondingly connected with the first optical fiber spectrometer (5) and the second optical fiber spectrometer (6), the first fiber spectrometer (5) and the second fiber spectrometer (6) are respectively connected with the electrical controller (7);
the electric controller (7) comprises a touch liquid crystal display (7-1), a test starting switch (7-2), a power switch (7-3), a control module, a spectrum database module and a power supply, the touch liquid crystal display (7-1) is used for receiving an instruction input by a user and displaying a test result, after the test starting switch (7-2) is triggered, the control module controls the light source component (2) of the bromine tungsten lamp to emit light and controls the first optical fiber spectrometer (5) and/or the second optical fiber spectrometer (6) to acquire spectrum data, the first optical fiber spectrometer (5) and/or the second optical fiber spectrometer (6) send acquired spectrum radiation information to the control module, and a fruit test calculation algorithm is integrated in the control module, the control module generates a test result according to the spectral characteristics corresponding to the tested fruit, the spectral radiation information and the fruit testing calculation algorithm stored in the spectral database module, stores the test result and controls the touch liquid crystal display screen (7-1) to display the test result.
2. The device for the non-destructive rapid testing of portable fruit according to claim 1, characterized in that said electrical controller (7) further comprises a remote data transmission module connected to said control module;
the control module is communicated with a remote control terminal (12) through the remote data transmission module, and the remote control terminal (12) carries out remote control and data transmission on the control module.
3. The portable fruit nondestructive rapid testing device according to claim 2,
the remote control terminal (12) is a computer or a smart phone.
4. The portable fruit nondestructive rapid testing device according to claim 2 or 3,
the remote data transmission module adopts a Bluetooth communication method or a WIFI communication method.
5. The portable fruit nondestructive rapid testing device according to claim 1 or 2, further comprising a background testing component (13) and a standard diffuse transmission component (14) fixedly connected with the background testing component (13);
the background testing component (13) is a black-dyed cylindrical aluminum block, and the standard diffuse transmission component (14) is a polytetrafluoroethylene cylinder.
6. The device for nondestructive rapid testing of portable fruit according to claim 1 or 2 wherein the testing assembly further comprises a lens holder (15);
the anti-pollution mirror (8) and the convergent optical lens (9) are fixedly mounted on the lens support (15), the anti-pollution mirror (8) and the convergent optical lens (9) are vacuumized, and the lens support (15) is fixedly connected with the side wall of the integrating sphere (1).
7. The portable fruit nondestructive rapid testing device according to claim 1 or 2,
the number of the bromine tungsten lamp light source components (2) is more than 6, the circumferences of the bromine tungsten lamp light source components (2) are uniformly distributed on the lower hemisphere of the integrating sphere (1), and the included angle between the connecting line of the sphere centers of the bromine tungsten lamp light source components (2) and the integrating sphere (1) and the horizontal plane where the sphere centers are located is 20-40 degrees.
8. The portable fruit nondestructive rapid testing device of claim 7,
the wavelength range of the first optical fiber spectrometer (5) is 600 nm-1100 nm, and the wavelength range of the second optical fiber spectrometer (6) is 900 nm-1700 nm.
9. The portable fruit nondestructive rapid testing device according to claim 1 or 2,
the inner wall surface of the integrating sphere (1) is plated with a high-reflectivity silver film and a high-reflectivity protective film or is sprayed with a high-reflectivity polytetrafluoroethylene coating, one part of light emitted by the bromine-tungsten lamp light source assembly (2) is directly incident on a measured fruit (11), and the rest part of light is incident on the inner wall of the integrating sphere (1), is reflected by the silver film or the polytetrafluoroethylene coating and then is incident on the measured fruit (11) again;
the inner diameter of the integrating sphere (1) is 200 mm.
10. The portable fruit nondestructive rapid testing device according to claim 1 or 2,
the tray (5) is made of soft rubber.
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Cited By (1)
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