CN217466655U - Portable nondestructive testing device for key components of fresh tea leaves - Google Patents
Portable nondestructive testing device for key components of fresh tea leaves Download PDFInfo
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- CN217466655U CN217466655U CN202221086281.3U CN202221086281U CN217466655U CN 217466655 U CN217466655 U CN 217466655U CN 202221086281 U CN202221086281 U CN 202221086281U CN 217466655 U CN217466655 U CN 217466655U
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- nondestructive testing
- wave near
- testing device
- fresh tea
- tea leaves
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- 241001122767 Theaceae Species 0.000 title claims abstract description 39
- 238000009659 non-destructive testing Methods 0.000 title claims abstract description 23
- 238000001514 detection method Methods 0.000 claims abstract description 45
- 229910052736 halogen Inorganic materials 0.000 claims abstract description 22
- 150000002367 halogens Chemical class 0.000 claims abstract description 20
- 238000002329 infrared spectrum Methods 0.000 claims abstract description 17
- 230000003287 optical effect Effects 0.000 claims abstract description 15
- 238000012360 testing method Methods 0.000 claims abstract description 7
- 239000000523 sample Substances 0.000 claims description 48
- 239000013307 optical fiber Substances 0.000 claims description 20
- 241000196324 Embryophyta Species 0.000 claims description 19
- 239000010453 quartz Substances 0.000 claims description 7
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 7
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 claims description 7
- 229910052721 tungsten Inorganic materials 0.000 claims description 7
- 239000010937 tungsten Substances 0.000 claims description 7
- 230000005540 biological transmission Effects 0.000 claims description 5
- 229910052751 metal Inorganic materials 0.000 claims description 4
- 239000002184 metal Substances 0.000 claims description 4
- 238000004458 analytical method Methods 0.000 claims description 3
- 238000001228 spectrum Methods 0.000 description 13
- 238000000034 method Methods 0.000 description 7
- 230000003595 spectral effect Effects 0.000 description 7
- 150000008442 polyphenolic compounds Chemical class 0.000 description 6
- 235000013824 polyphenols Nutrition 0.000 description 6
- 238000013461 design Methods 0.000 description 4
- 239000000835 fiber Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 238000004497 NIR spectroscopy Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 229910000530 Gallium indium arsenide Inorganic materials 0.000 description 1
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 238000012937 correction Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000004128 high performance liquid chromatography Methods 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 238000002798 spectrophotometry method Methods 0.000 description 1
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- Investigating Or Analysing Materials By Optical Means (AREA)
Abstract
The utility model provides a portable nondestructive testing device for key components of fresh tea leaves, which comprises a sample container; the fresh tea leaf sample is arranged on the light receiving surface of the sample container, and is adjacent to the halogen lamp and the Y-shaped light guide device; the lower end of the Y-shaped light guide device is an optical input end which is close to the fresh tea leaf sample, two branches at the upper end of the Y-shaped light guide device are optical output ends, and the two optical output ends are respectively connected to an optical input end of the visible/short wave near infrared spectrum device and an optical input end of the long wave near infrared spectrum device; the utility model discloses can improve detection speed and reduce the check out test set cost.
Description
Technical Field
The utility model belongs to the technical field of detecting instrument technique and specifically relates to a bright leaf key component nondestructive test device of portable tea.
Background
With the development of tea deep processing technology, people continuously improve the understanding of the health care function of tea, and also put forward higher requirements on the quality of fresh tea leaves, and tea polyphenol is a key component for determining the quality of the fresh tea leaves. At present, the traditional chemical methods such as high performance liquid chromatography and spectrophotometry are mainly adopted for detecting the content of tea polyphenol, and although the detection precision is high, the problems of long detection period, high cost, sample damage and the like exist. Meanwhile, because tea polyphenol is a mixture of tea polyphenol, the chemical composition of the tea polyphenol is complex, sample spectrum information acquired by a spectrometer with a narrow spectrum range has certain limitation, and the spectrometer with a wide spectrum range in the market is expensive. Therefore, a method and a portable device for detecting the content of tea polyphenol efficiently and nondestructively in real time are still lacked in the quality detection process of fresh tea leaves.
Disclosure of Invention
The utility model provides a bright leaf key composition nondestructive test device of portable tea can improve detection speed and reduce the check out test set cost.
The utility model adopts the following technical scheme.
A portable nondestructive testing device for key components of fresh tea leaves comprises a sample container; the fresh tea leaf sample is arranged on the light receiving surface of the sample container, and is adjacent to the halogen lamp (10) and the Y-shaped light guide device; the lower end of the Y-shaped light guide device is a light input end close to the fresh tea leaf sample, two branches at the upper end are light output ends, and the two light output ends are respectively connected to a light input end of the visible/short wave near infrared spectrum device (4) and a light input end of the long wave near infrared spectrum device (19).
The Y-shaped light guide device is a Y-shaped optical fiber (13).
The visible/short wave near infrared spectrum device is a visible/short wave near infrared spectrometer, and the long wave near infrared spectrum device is a long wave near infrared spectrometer; the detection device comprises a shell and an inner cavity; the visible/short wave near-infrared spectrometer and the long wave near-infrared spectrometer are both fixed in the inner cavity.
The visible/short wave near-infrared spectrometer and the long wave near-infrared spectrometer are respectively connected with external analysis equipment through a USB data transmission interface (9).
The light input ends of the visible/short wave near-infrared spectrometer and the long wave near-infrared spectrometer which are fixed in the inner cavity are arranged on the same side of the inner cavity and are adjacent to the optical fiber wiring port at the shell.
The power supply of the detection device comprises a built-in battery (14), and a battery fixing frame (15) for fixing the battery is arranged in the inner cavity of the detection device.
The power supply of the detection device comprises an internal battery, an external battery or 220V alternating current accessed through an AC interface (24); the shell of the detection device is provided with a DC interface (21) for accessing the electric power of an external battery, and is also provided with a power main switch (8), a power meter head (5), a power state indicator lamp (6) and a power supply changeover switch (7) for switching a power supply.
The visible/short wave near-infrared spectrometer is fixed on the upper part of the detection device shell, and the long wave near-infrared spectrometer is fixed on the side part of the detection device shell.
The shell of the detection device comprises an upper shell (2) and a bottom shell (3), and a handle (1) is arranged at the upper shell.
The sample container is a plant probe, and a standard white board is arranged at the opening of a blade clamp (11) of the plant probe; the halogen lamp is a tungsten quartz halogen lamp integrated at a plant probe, and is powered by a power supply of the detection device through a halogen lamp power line (12); the plant probe is internally provided with a tungsten quartz halogen lamp metal reflector.
The utility model designs a detection apparatus which takes visible/shortwave near-infrared spectrometer (400-plus-1050 nm) and long-wave near-infrared spectrometer (1000-plus-1650 nm) as hardware basis, and provides a detection method and hardware support for the combination of visible/shortwave and long-wave near-infrared spectrum for determining the key components of fresh tea leaves.
The utility model has the advantages that:
1. the detection of the key components of the fresh tea leaves is carried out by combining the spectrum technology with the chemometrics method, so that the detection speed is improved, and the cost of detection equipment is reduced.
2. The visible/short wave near-infrared spectrometer and the long wave near-infrared spectrometer are integrated, the detection wavelength range of one-time sampling is wider, and the visible/short wave and long wave near-infrared spectrum data of the tea can be simultaneously acquired.
3. The three power supply modes can be supplied by a built-in lithium battery, and can also be connected with an external battery through a DC interface, or be connected with 220V alternating current through an AC interface. The requirements of various application occasions are met.
Drawings
The invention will be described in further detail with reference to the following drawings and detailed description:
FIG. 1 is a schematic diagram of the present invention;
FIG. 2 is an internal schematic view of the present invention;
FIG. 3 is a back schematic view of the present invention;
FIG. 4 is a schematic diagram of the present invention;
fig. 5 is a schematic circuit diagram of the present invention;
FIG. 6 is a schematic view of the operation flow of the present invention during the detection;
in the figure: 1-a handle; 2-upper shell; 3-a bottom shell; 4-visible/short wave near infrared spectroscopy equipment; 5-power source gauge outfit; 6-power status indicator light; 7-power supply change-over switch; 8-power main switch; 9-USB data transmission interface; 10-halogen lamps; 11-blade clamp; 12-halogen lamp power cord; 13-Y type optical fiber; 14-built-in battery; 15-battery fixing frame; 19-a long-wave near infrared spectroscopy device; a 20-cannon mount interface; 21-DC interface; 24-AC interface.
Detailed Description
As shown in the figure, the portable nondestructive testing device for key components in fresh tea leaves comprises a sample container; the fresh tea leaf sample is arranged on the light receiving surface of the sample container, and is adjacent to the halogen lamp 10 and the Y-shaped light guide device; the lower end of the Y-shaped light guide device is an optical input end which is close to the fresh tea leaf sample, two branches at the upper end are optical output ends, and the two optical output ends are respectively connected to an optical input end of the visible/short wave near infrared spectrum device 4 and an optical input end of the long wave near infrared spectrum device 19.
The Y-shaped light guide device is a Y-shaped optical fiber 13.
The visible/short wave near infrared spectrum device is a visible/short wave near infrared spectrometer, and the long wave near infrared spectrum device is a long wave near infrared spectrometer; the detection device comprises a shell and an inner cavity; the visible/short wave near-infrared spectrometer and the long wave near-infrared spectrometer are both fixed in the inner cavity.
The visible/short wave near-infrared spectrometer and the long wave near-infrared spectrometer are respectively connected with external analysis equipment through a USB data transmission interface 9.
The light input ends of the visible/short wave near-infrared spectrometer and the long wave near-infrared spectrometer which are fixed in the inner cavity are arranged on the same side of the inner cavity and are adjacent to the optical fiber wiring port at the shell.
The power supply of the detection device comprises a built-in battery 14, and a battery fixing frame 15 for fixing the battery is arranged in the inner cavity of the detection device.
The power supply of the detection device comprises an internal battery, an external battery or 220V alternating current accessed through an AC interface 24; the shell of the detection device is provided with a DC interface 21 for accessing the electric power of an external battery, and is also provided with a power main switch 8, a power meter head 5, a power state indicator lamp 6 and a power supply changeover switch 7 for switching a power supply.
The visible/short wave near-infrared spectrometer is fixed on the upper part of the detection device shell, and the long wave near-infrared spectrometer is fixed on the side part of the detection device shell.
The shell of the detection device comprises an upper shell 2 and a bottom shell 3, and a handle 1 is arranged at the upper shell.
The sample container is a plant probe, and a standard white board is arranged at the position of a blade clamp 11 nip of the plant probe; the halogen lamp is a tungsten quartz halogen lamp integrated at a plant probe, and is powered by a power supply of the detection device through a halogen lamp power line 12; the plant probe is internally provided with a tungsten quartz halogen lamp metal reflector.
Example 1:
in this example, the external dimensions of the device are designed to be 300X 224X 163 mm, and the shell is made of aluminum alloy. A spectrometer (4) is arranged on the upper shell (2) of the shell, and the external dimension of the spectrometer (4) is 220 multiplied by 150 multiplied by 80 mm; a spectrometer (19) is fixed on the side surface of the upper shell (2) of the shell, and the external dimension of the spectrometer (19) is 110X 86X 32 mm. And because Y type optic fibre (13) can not be buckled, otherwise can influence spectral signal transmission, consequently with spectrometer (4) and spectrometer (19)'s optical fiber interface design in same side to set up the outlet, prevent to drag Y type optic fibre (13) in the spectral information acquisition process. Since the battery (14) has no fixing hole, the battery holder (15) is designed to fix the battery. In order to facilitate the carrying of the whole device, a handheld handle (1) is designed on the upper shell (2) of the device.
The spectrometer (4) (19) and the Y-shaped optical fiber (13) are key components of the detection device, the spectrometer (4) adopts a FieldSpec hand Held 2 spectrometer of American ASD company, and the wavelength range is as follows: 325-' 1075 nm, and a 512 silicon array PDA sensor is adopted, the spectrometer can obtain spectral information with high signal-to-noise ratio in a complex field environment, and a rechargeable battery is arranged in the spectrometer, so that the spectrometer has light weight and high cost performance. When the detector is independently used for collecting, the detector does not need to be connected with a computer for operation, a USB (universal serial bus) wire is used for being connected with the computer to output data after the data are collected, and an SMA905 is adopted as a connector of the detector, belongs to an optical fiber type spectrometer and is suitable for being used as a detector for collecting visible/short wave near infrared spectra.
Spectrometer 2(19) selects SW2520 spectrometer of OtO ultramicro optics company, wavelength range is: 900-1700 nm, a 128pixel linear array InGaAs sensor is adopted, the signal-to-noise ratio is high, the wavelength accuracy is less than 2 nm, the working voltage is 5V, the size is small, the scanning speed is high, and the device is portable. Also belonging to the optical fiber type spectrometer, the optical fiber of the SMA905 joint can be adopted for connection.
The plant probe selects an accessory plant probe blade clamp (11) of American ASD company, a clamp opening of the probe is provided with a standard white board, sample spectrum data can be corrected in real time, the influence of illumination intensity and environmental factors on sample spectrum information under a field complex environment is overcome, a tungsten quartz halogen lamp (10) metal reflector is arranged in the plant probe, a 12V direct current stabilized power supply is needed, and a stable light source can be provided.
In this example, the power supply line of the halogen lamp and the signal line of the halogen lamp are both connected to the cannon mount interface of the housing of the detection apparatus.
The visible/short wave near-infrared spectrometer and the long wave near-infrared spectrometer are respectively connected with an external computer through a USB data transmission interface 9.
The Y-shaped optical fiber (13) connecting the two spectrometers is selected from an SIH 400Y 6+1 optical fiber of Shenzhen Xin Rui photon science and technology Limited company, the diameter of a core insert at one end of the Y-shaped optical fiber (13) is 6.35 mm, the length of the core insert is 65 mm, and the Y-shaped optical fiber can be obliquely inserted into an optical fiber input end of a plant probe. The other port contains two SMA905 fiber connectors, one connector contains 6 cores, the connector is connected with a FieldSpec HandHeld 2 spectrometer (4), and the other connector contains 1 core, and the connector is connected with a SW2520 spectrometer (19).
The diameter of the fiber core of the Y-shaped optical fiber (13) is 400 um, the length is 1 m, and the transmittable spectral range is as follows: 400-2200 nm covers the spectral ranges of visible light/short wave near infrared (400-1050 nm) and long wave near infrared (1000-1650 nm) required by the design, so that the Y-shaped optical fiber (13) meets the design requirement.
Example 2:
during nondestructive testing, firstly, a halogen lamp (10) and a detection device are started to preheat for half an hour, then a plant probe blade chuck (11) is turned over to one side of a standard white board, and then a spectrometer software application program is started to automatically obtain the optimal integration time, smoothness and set scanning times under a test environment, so that the peak value of a spectrum signal is in a recommended range; then the plant probe blade chuck (11) is turned to a black background surface, dark current is collected and stored, and the detection device collects sample spectrum data under the state of storing the optimal parameters.
The sample is placed on a black background surface of a plant probe blade clamp (11), and the sample covers the whole blade clamp as much as possible to prevent the influence of light leakage on sample spectrum information. At the moment, the Y-shaped optical fiber (13) divides the sample spectrum signal into two paths at the same time, one path enters the FieldSpec HandHeld 2 spectrometer (4), the other path enters the SW2520 spectrometer (19), and when the sample spectrum signal reaches the two spectrometers at the same time, sample spectrum data is acquired. In order to obtain accurate data, the spectral data of 3 different positions of the sample are repeatedly collected, and the average value is calculated to be used as the original spectrum of the sample. Thereafter, a standard whiteboard and dark current were collected at 15 minute intervals during the test for whiteboard correction. And finally, after all samples are collected, respectively using respective spectral data export software to store the samples in a computer, and ending the operation process of the detection device.
Claims (10)
1. The utility model provides a bright leaf key component nondestructive test device of portable tea which characterized in that: the detection device comprises a sample container; the fresh tea leaf sample is arranged on the light receiving surface of the sample container, and is adjacent to the halogen lamp (10) and the Y-shaped light guide device; the lower end of the Y-shaped light guide device is an optical input end which is close to the fresh tea leaf sample, two branches at the upper end are optical output ends, and the two optical output ends are respectively connected to an optical input end of the visible/short wave near infrared spectrum device (4) and an optical input end of the long wave near infrared spectrum device (19).
2. The portable nondestructive testing device for key components in fresh tea leaves as claimed in claim 1, wherein the nondestructive testing device comprises: the Y-shaped light guide device is a Y-shaped optical fiber (13).
3. The portable nondestructive testing device for key components in fresh tea leaves as claimed in claim 1, wherein the nondestructive testing device comprises: the visible/short wave near infrared spectrum device is a visible/short wave near infrared spectrometer, and the long wave near infrared spectrum device is a long wave near infrared spectrometer; the detection device comprises a shell and an inner cavity; the visible/short wave near-infrared spectrometer and the long wave near-infrared spectrometer are both fixed in the inner cavity.
4. The portable nondestructive testing device for key components in fresh tea leaves as claimed in claim 3, wherein the nondestructive testing device is characterized in that: the visible/short wave near-infrared spectrometer and the long wave near-infrared spectrometer are respectively connected with external analysis equipment through a USB data transmission interface (9).
5. The portable nondestructive testing device for key components in fresh tea leaves as claimed in claim 3, wherein the nondestructive testing device is characterized in that: the light input ends of the visible/short wave near-infrared spectrometer and the long wave near-infrared spectrometer which are fixed in the inner cavity are arranged on the same side of the inner cavity and are adjacent to the optical fiber wiring port at the shell.
6. The portable nondestructive testing device for key components in fresh tea leaves as claimed in claim 3, wherein the nondestructive testing device is characterized in that: the power supply of the detection device comprises a built-in battery, and a battery fixing frame for fixing the battery is arranged in an inner cavity of the detection device.
7. The portable nondestructive testing device for key components in fresh tea leaves as claimed in claim 3, wherein the nondestructive testing device is characterized in that: the power supply of the detection device comprises an internal battery, an external battery or 220V alternating current accessed through an AC interface (24); the shell of the detection device is provided with a DC interface for accessing the electric power of the external battery, and is also provided with a power main switch (8), a power meter head (5), a power state indicator lamp (6) and a power supply changeover switch (7) for switching a power supply.
8. The portable nondestructive testing device for key components in fresh tea leaves as claimed in claim 3, wherein: the visible/short wave near-infrared spectrometer is fixed on the upper part of the detection device shell, and the long wave near-infrared spectrometer is fixed on the side part of the detection device shell.
9. The portable nondestructive testing device for key components in fresh tea leaves as claimed in claim 3, wherein the nondestructive testing device is characterized in that: the shell of the detection device comprises an upper shell (2) and a bottom shell, and a handle (1) is arranged at the upper shell.
10. The portable nondestructive testing device for key components in fresh tea leaves as claimed in claim 1, wherein the nondestructive testing device comprises: the sample container is a plant probe, and a standard white board is arranged at a blade clamping opening of the plant probe; the halogen lamp is a tungsten quartz halogen lamp integrated at the plant probe and is powered by a power supply of the detection device through a halogen lamp power line; the plant probe is internally provided with a tungsten quartz halogen lamp metal reflector.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221086281.3U CN217466655U (en) | 2022-05-09 | 2022-05-09 | Portable nondestructive testing device for key components of fresh tea leaves |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221086281.3U CN217466655U (en) | 2022-05-09 | 2022-05-09 | Portable nondestructive testing device for key components of fresh tea leaves |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217466655U true CN217466655U (en) | 2022-09-20 |
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ID=83273558
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221086281.3U Expired - Fee Related CN217466655U (en) | 2022-05-09 | 2022-05-09 | Portable nondestructive testing device for key components of fresh tea leaves |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217466655U (en) |
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2022
- 2022-05-09 CN CN202221086281.3U patent/CN217466655U/en not_active Expired - Fee Related
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20220920 |
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| CF01 | Termination of patent right due to non-payment of annual fee |