CN107917891A - A kind of optical fiber diffusing transmission formula for solid particulate matter spectrum Non-Destructive Testing is popped one's head in - Google Patents
A kind of optical fiber diffusing transmission formula for solid particulate matter spectrum Non-Destructive Testing is popped one's head in Download PDFInfo
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- CN107917891A CN107917891A CN201711371162.6A CN201711371162A CN107917891A CN 107917891 A CN107917891 A CN 107917891A CN 201711371162 A CN201711371162 A CN 201711371162A CN 107917891 A CN107917891 A CN 107917891A
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- 239000007787 solid Substances 0.000 title claims abstract description 61
- 239000013618 particulate matter Substances 0.000 title claims abstract description 39
- 230000005540 biological transmission Effects 0.000 title claims abstract description 38
- 238000001228 spectrum Methods 0.000 title claims abstract description 35
- 239000013307 optical fiber Substances 0.000 title claims abstract description 32
- 238000009659 non-destructive testing Methods 0.000 title claims abstract description 22
- 230000003287 optical effect Effects 0.000 claims abstract description 12
- 239000011248 coating agent Substances 0.000 claims description 12
- 238000000576 coating method Methods 0.000 claims description 12
- 229910052736 halogen Inorganic materials 0.000 claims description 7
- 150000002367 halogens Chemical class 0.000 claims description 7
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 claims description 6
- 229910052721 tungsten Inorganic materials 0.000 claims description 6
- 239000010937 tungsten Substances 0.000 claims description 6
- 239000002245 particle Substances 0.000 claims description 5
- 239000000523 sample Substances 0.000 abstract description 43
- 238000001514 detection method Methods 0.000 abstract description 20
- 238000000034 method Methods 0.000 abstract description 8
- 235000013339 cereals Nutrition 0.000 description 27
- 238000004458 analytical method Methods 0.000 description 8
- 238000005516 engineering process Methods 0.000 description 7
- 239000000835 fiber Substances 0.000 description 7
- 238000005070 sampling Methods 0.000 description 7
- 238000003556 assay Methods 0.000 description 5
- 238000009434 installation Methods 0.000 description 4
- 238000013461 design Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000002329 infrared spectrum Methods 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 238000001028 reflection method Methods 0.000 description 3
- 241000196324 Embryophyta Species 0.000 description 2
- 241000209140 Triticum Species 0.000 description 2
- 235000021307 Triticum Nutrition 0.000 description 2
- 235000013399 edible fruits Nutrition 0.000 description 2
- 239000008187 granular material Substances 0.000 description 2
- 238000003306 harvesting Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000000862 absorption spectrum Methods 0.000 description 1
- 239000000443 aerosol Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 239000000686 essence Substances 0.000 description 1
- 235000013312 flour Nutrition 0.000 description 1
- 235000013305 food Nutrition 0.000 description 1
- 239000003317 industrial substance Substances 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000009940 knitting Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- -1 part light Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000010183 spectrum analysis Methods 0.000 description 1
- 238000010561 standard procedure Methods 0.000 description 1
Classifications
-
- 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
-
- 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
-
- 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
- G01N21/359—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
-
- 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
- G01N21/84—Systems specially adapted for particular applications
- G01N21/85—Investigating moving fluids or granular solids
- G01N21/8507—Probe photometers, i.e. with optical measuring part dipped into fluid sample
-
- 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
- G01N2021/0106—General arrangement of respective parts
- G01N2021/0112—Apparatus in one mechanical, optical or electronic block
Landscapes
- Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating Or Analysing Materials By Optical Means (AREA)
Abstract
The invention discloses a kind of optical fiber diffusing transmission formula probe for solid particulate matter spectrum Non-Destructive Testing, including shell, exit window, entrance window, emergent ray issue device, incident optical beam, the first speculum, wherein exit window, entrance window are installed on the same side of shell and towards same directions, emergent ray issue device, which conducts emergent light to exit window, enters solid particulate matter, emergent light enters by the diffuse transmission light that solid particulate matter is formed through entrance window obtains incident ray, and incident ray enters incident optical beam through the first speculum change direction and exports.The existing transmission of present invention contrast, diffusing reflection detection mode, this diffusing transmission formula probe eliminate sample cell, it is not necessary to and sample, fill the operating process such as sample, more convenient to use, detection efficiency higher.
Description
Technical field
It is more particularly to a kind of for solid particulate matter spectrum Non-Destructive Testing the present invention relates to near-infrared spectrum analysis field
Optical fiber diffusing transmission formula is popped one's head in.
Background technology
Certain several compositional information of the solid particulate matters such as grain, oil crop seeds, feed granules are used for quickly detecting
It is significant.For example the content information of the crops partial elementses such as grain is obtained in the harvest of grain, purchase, accumulating, processing
Significant, for example buyer agent can fix the price according to the quality according to Protein Content in Wheat information, Flour production business can be with the stage
Adjusted and produced according to the protein content information of wheat.
Near-infrared spectral analysis technology is detected material composition using near infrared light, using this technology to grain etc.
Solid particulate matter is detected and reagent is not required, does not damage that sample, speed are fast, and precision is also higher.This technology from last century 60,
Start the seventies to be widely applied in developed countries such as the U.S., many grain processing plants, feed-processing plant, pharmaceutical factory etc. have near red
External spectrum analyzer, the recent decades country also begin to use this technology.Many countries, such as U.S., Canada, China will
The method of some near infrared detection grain components is set to standard method (such as AACC Method 39-25).
At present transmission method is mainly used using the similar solid particulate matter of NIR technology detection grain and size
With diffusing reflection method.During using transmission method, detector must be directed towards light source placement, be generally used for desk-top instrument (US patent
5241178th, FOSS, Infratec TM 1241).To lack (e.g., optically focused science and technology using the instrument of diffusing reflection method
SupNIR-2700).Using diffusing reflection method, the grain shape of solid particulate matter can bring larger interference to diffusing, it is necessary to
Sample is placed in rotating sample pool, rotates sample, repeatedly measurement obtains the average value of reflected light.Using transmission method and overflow anti-
The Grain Analysis instrument of shooting method, either desk-top or portable instrument, is required for sample being placed in sample cell, it is necessary to take
The operating process such as sample, dress sample.Many detection demands of grain belong to field assay, such as transaction scene, warehouse, cumbersome operation
It is more suitable for laboratory rather than field assay application.Many field assays of near-infrared spectrum analysis apply as fruit harvest when into
Ripe degree detection, the storehouse management of industrial chemicals, have begun to largely use hand-held near-infrared spectrometers, such as Felix
The F-750 of Instruments Inc., the country also have it is this kind of probe or instrument patent (CN101799401A,
CN103822900A, CN104034674A), these equipment need not fill sample operation, fruit or solid powder can be carried out straight
Detection is connect, but these equipment can not be used to detect the solid particulate matters such as grain, and sample operation, energy need not be filled at present by still lacking
Enough spectroanalysis instruments being directly detected to grain, particularly handheld instrument.Near-infrared spectrum analysis is solved to be difficult to use
In the grain field assay the problem of, it is necessary to find new detection mode, substitute existing dress sample detection mode.
In near infrared detection, light needs to be absorbed through sample, part light, and sample is calculated according to the absorption spectrum detected
The compositional information of product.The big solid particulate matter sample such as grain oil crop seeds has certain fluidity, can design special spy
Head, is inserted into sample, passes light through fraction solids aerosol sample and be detected, and need not so fill sample operation, greatly increase
The convenience of field assay application.Near-infrared analysis field has a variety of transmission-types for liquid detecting to pop one's head at present, such as US
The design of patent 5418615.But grain is larger, it is necessary to larger light path makes transmitted light more uniform, current transmission
Formula probe light path is too small, is not appropriate for the detection for solid particulate matters such as grains.
The content of the invention
The shortcomings that it is a primary object of the present invention to overcome the prior art and deficiency, there is provided one kind is used for solid particle object light
The optical fiber diffusing transmission formula probe of Non-Destructive Testing is composed, the solid particulate matters such as grain, oil crop seeds, feed granules are carried out lossless
The diffusing transmission formula fibre-optical probe of detection.Belong to the annex of near-infrared spectrometers, be adapted to portable and desk-top near-infrared analysis
Instrument uses.
The purpose of the present invention is realized by following technical solution：
A kind of optical fiber diffusing transmission formula for solid particulate matter spectrum Non-Destructive Testing is popped one's head in, including shell, exit window, incidence
Window, emergent ray issue device, incident optical beam, the first speculum, wherein exit window, entrance window are installed on the same side of shell
And towards same direction, emergent ray issue device, which conducts emergent light to exit window, enters solid particulate matter, emergent light warp
The diffuse transmission light for crossing solid particulate matter formation obtains incident ray through entrance window entrance, and incident ray changes through the first speculum
Direction enters the export of incident optical beam.Incident optical beam, which conducts incident ray to detection device, carries out spectra collection and composition
Analysis, the detection device device such as including near-infrared spectrometers.
The emergent ray issue device includes the first light source, the output optical fiber beam, wherein the second speculum, the output optical fiber beam
The light of first light source is conducted to the second speculum, solid particle is entered back through exit window through the second speculum change side
In thing.
Second speculum is coated with the entity right-angle prism of reflectance coating for plane mirror or long side.
The entity right-angle prism that the long side is coated with reflectance coating is separately set with exit window, or merges into one with exit window
A solid prism.
The spectrum of first light source is 600~1100nm, first light source for halogen tungsten lamp or spectrum 600~
Continuously distributed LED light source in the range of 1100nm.
The emergent ray issue device includes secondary light source, and secondary light source is placed in shell and faces exit window, the
The light that two light sources are sent is directly over exit window and enters in solid particulate matter.
The spectrum of the secondary light source is 600~1100nm, the secondary light source for halogen tungsten lamp or spectrum 600~
Continuously distributed LED light source in the range of 1100nm.
First speculum is coated with the entity right-angle prism of reflectance coating for plane mirror or long side.
The entity right-angle prism that the long side is coated with reflectance coating is separately set with entrance window, or merges into one with entrance window
A solid prism.
The bottom of the shell is thin cylindric.Fibre-optical probe is so facilitated to be inserted into solid particulate matter.
Spacing between the exit window and entrance window is 2cm~4cm.
Compared with prior art, the present invention having the following advantages that and beneficial effect：
The fibre-optical probe of the present invention is mainly used for the short wavelength-NIR region of 600~1100nm, for grain, oil crops
The solid particulate matters such as seed, the light transmission rate of this wave band is compared with long wave higher.This wave band is also transmission mode detection grain institute
Wave band.The mode of the solid particulate matters such as existing transmission mode, diffusing reflection mode both near infrared detection grains is contrasted,
The fibre-optical probe of the present invention eliminates the flows such as sampling, dress sample without sample cell；Simultaneously because light path is longer, largely
Avoid the influence of granularity；The fibre-optical probe of the present invention make use of the mobility of the solid particulate matters such as grain, be inserted directly into grain
Used in the solid particulate matters such as food, it is convenient to be applied to desk-top, portable instrument.The fibre-optical probe of the present invention and sampling sharp-pointed tube shape class
Seemingly, this probe can be inserted into packaging bag or is detected in the solid particulate matter such as grain in bulk by operator, so as to
To cancel sampling sharp-pointed tube sampling operation, and dress sample operation during near infrared detection.This probe can be improved at many scenes point
Analyse the efficiency of occasion detection.
The diffusing transmission mode that the present invention uses reaches the light of detector since light path is larger, and light path is close with transmission mode,
Influenced by granularity also smaller.When actually using this probe, grain in bulk can be inserted directly into as using sampling sharp-pointed tube
Deng in solid particulate matter, or in the grain of insertion knitting bagged, so as to cancel sampling sharp-pointed tube sampling operation, and near-infrared
Dress sample operation during detection.
Brief description of the drawings
Fig. 1 is the outside that a kind of optical fiber diffusing transmission formula for solid particulate matter spectrum Non-Destructive Testing of the present invention is popped one's head in
Front view.
Fig. 2 is the outside that a kind of optical fiber diffusing transmission formula for solid particulate matter spectrum Non-Destructive Testing of the present invention is popped one's head in
Left view.
Fig. 3 is that a kind of corresponding optical fiber diffusing transmission formula for solid particulate matter spectrum Non-Destructive Testing of embodiment 1 is popped one's head in
Structure diagram；Emergent light and incident light are all conducted using fiber optic bundle at this time.
Fig. 4 is that a kind of corresponding optical fiber diffusing transmission formula for solid particulate matter spectrum Non-Destructive Testing of embodiment 2 is popped one's head in
Structure diagram；Incident light is conducted using fiber optic bundle at this time, and emergent light is conducted without using fiber optic bundle, and secondary light source is integrated in probe
It is internal.
Fig. 5 is a kind of the unrestrained of optical fiber diffusing transmission formula probe for solid particulate matter spectrum Non-Destructive Testing of the present invention
The fundamental diagram penetrated.
Fig. 6 is the first scheme of installation of the second speculum.
Fig. 7 is second of scheme of installation of the second speculum.
Fig. 8 is the third scheme of installation of the second speculum.
The implication of reference numeral is as follows：
1- shells, 2- exit windows, 3- entrance windows, 4- incident opticals beam, the first speculums of 5-, 6- the output optical fibers beam, 7-
Two-mirror, 8- plane mirrors, 9- long sides are coated with the entity right-angle prism, 10- secondary light sources, 11- conducting wires of reflectance coating.
Embodiment
With reference to embodiment and attached drawing, the present invention is described in further detail, but embodiments of the present invention are unlimited
In this.
Embodiment 1
Such as Fig. 1,2,3,5, a kind of optical fiber diffusing transmission formula for solid particulate matter spectrum Non-Destructive Testing is popped one's head in, including outer
Shell, exit window, entrance window, emergent ray issue device, incident optical beam, the first speculum, wherein exit window, entrance window installation
In the same side of shell and towards same direction, emergent ray issue device, which conducts emergent light to exit window, enters solid
Grain thing, emergent light enters by the diffuse transmission light that solid particulate matter is formed through entrance window obtains incident ray, incident ray warp
First speculum changes direction and enters the export of incident optical beam.
The emergent ray issue device includes the first light source, the output optical fiber beam, wherein the second speculum, the output optical fiber beam
The light of first light source is conducted to the second speculum, solid particle is entered back through exit window through the second speculum change side
In thing.
Second speculum is coated with the entity right-angle prism of reflectance coating for plane mirror or long side.
The spectrum of first light source is 600~1100nm, first light source for halogen tungsten lamp or spectrum 600~
Continuously distributed LED light source in the range of 1100nm.
Exit window and entrance window use the material that can pass through 700~1100nm light.Two probe between spacing according to
The transmitance of different samples is different and optimizes, and spacing is about 2cm~4cm.
The output optical fiber beam, incident optical beam are made of a plurality of optical fiber, can conduct the light of 700~1100nm wave bands.Fiber optic bundle
End face close to speculum one end is plane, and end face is vertical with center probe axis.
The output optical fiber beam can connect the near-infrared light sources such as halogen lamp, and incident optical beam can connect universal near infrared spectrometer
Or the near infrared spectrometer exclusively for the solid particulate matter design such as detection grain, oil crop seeds.
Embodiment 2
Such as Fig. 1,2,4,5, embodiment 2 and embodiment 1 difference lies in：Emergent light and incident light are not all to use fiber optic bundle
Conduction；In example 2, incident light is conducted using fiber optic bundle, and emergent light is conducted without using fiber optic bundle, and secondary light source is integrated in spy
Head is internal.
The emergent ray issue device includes secondary light source, and secondary light source is placed in shell and faces exit window, the
The light that two light sources are sent is directly over exit window and enters in solid particulate matter.
The spectrum of the secondary light source is 600~1100nm, the secondary light source for halogen tungsten lamp or spectrum 600~
Continuously distributed LED light source in the range of 1100nm.
First speculum is coated with the entity right-angle prism of reflectance coating for plane mirror or long side.
The entity right-angle prism that the long side is coated with reflectance coating is separately set with entrance window, or merges into one with entrance window
A solid prism.
The bottom of the shell is thin cylindric.Fibre-optical probe is so facilitated to be inserted into solid particulate matter.
In embodiment 1,2, the first speculum, the second speculum have three kinds of mounting means, by taking the second speculum as an example：
The first：Such as Fig. 6, the second speculum is plane mirror, and the reflective surface of plane mirror goes out with vertically arranged
Penetrate window in angle of 45 degrees.
Second：Such as Fig. 7, the second speculum is entity right-angle prism, and entity right-angle prism is separately set with exit window.
The third：Such as Fig. 8, the second speculum is entity right-angle prism, and entity right-angle prism merges into one with exit window
A solid prism.
The facilities of first speculum are same, repeat no more.
Above-described embodiment is the preferable embodiment of the present invention, but embodiments of the present invention and from above-described embodiment
Limitation, other any Spirit Essences without departing from the present invention with made under principle change, modification, replacement, combine, simplification,
Equivalent substitute mode is should be, is included within protection scope of the present invention.
Claims (10)
1. a kind of optical fiber diffusing transmission formula for solid particulate matter spectrum Non-Destructive Testing is popped one's head in, it is characterised in that：Including shell, go out
Window, entrance window, emergent ray issue device, incident optical beam, the first speculum are penetrated, wherein exit window, entrance window is installed on outer
The same side of shell and towards same direction, emergent ray issue device, which conducts emergent light to exit window, enters solid particle
Thing, emergent light enters by the diffuse transmission light that solid particulate matter is formed through entrance window obtains incident ray, and incident ray is through the
One speculum changes direction and enters the export of incident optical beam.
2. a kind of optical fiber diffusing transmission formula for solid particulate matter spectrum Non-Destructive Testing is popped one's head according to claim 1, it is special
Sign is：The emergent ray issue device includes the first light source, the output optical fiber beam, wherein the second speculum, the output optical fiber beam
The light of first light source is conducted to the second speculum, solid particle is entered back through exit window through the second speculum change side
In thing.
3. a kind of optical fiber diffusing transmission formula for solid particulate matter spectrum Non-Destructive Testing is popped one's head according to claim 2, it is special
Sign is：Second speculum is coated with the entity right-angle prism of reflectance coating for plane mirror or long side.
4. a kind of optical fiber diffusing transmission formula for solid particulate matter spectrum Non-Destructive Testing is popped one's head according to claim 3, it is special
Sign is：The entity right-angle prism that the long side is coated with reflectance coating is separately set with exit window, or merges into one with exit window
A solid prism.
5. a kind of optical fiber diffusing transmission formula for solid particulate matter spectrum Non-Destructive Testing is popped one's head according to claim 2, it is special
Sign is：The spectrum of first light source is 600~1100nm, first light source for halogen tungsten lamp or spectrum 600~
Continuously distributed LED light source in the range of 1100nm.
6. a kind of optical fiber diffusing transmission formula for solid particulate matter spectrum Non-Destructive Testing is popped one's head according to claim 1, it is special
Sign is：The emergent ray issue device includes secondary light source, and secondary light source is placed in shell and faces exit window, and second
The light that light source is sent is directly over exit window and enters in solid particulate matter.
7. a kind of optical fiber diffusing transmission formula for solid particulate matter spectrum Non-Destructive Testing is popped one's head according to claim 6, it is special
Sign is：The spectrum of the secondary light source is 600~1100nm, the secondary light source for halogen tungsten lamp or spectrum 600~
Continuously distributed LED light source in the range of 1100nm.
8. a kind of optical fiber diffusing transmission formula for solid particulate matter spectrum Non-Destructive Testing is popped one's head according to claim 1, it is special
Sign is：First speculum is coated with the entity right-angle prism of reflectance coating for plane mirror or long side.
9. a kind of optical fiber diffusing transmission formula for solid particulate matter spectrum Non-Destructive Testing is popped one's head according to claim 8, it is special
Sign is：The entity right-angle prism that the long side is coated with reflectance coating is separately set with entrance window, or merges into one with entrance window
A solid prism.
10. a kind of optical fiber diffusing transmission formula for solid particulate matter spectrum Non-Destructive Testing is popped one's head according to claim 1, it is special
Sign is：The bottom of the shell is thin cylindric；Spacing between the exit window and entrance window is 2cm~4cm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711371162.6A CN107917891A (en) | 2017-12-19 | 2017-12-19 | A kind of optical fiber diffusing transmission formula for solid particulate matter spectrum Non-Destructive Testing is popped one's head in |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711371162.6A CN107917891A (en) | 2017-12-19 | 2017-12-19 | A kind of optical fiber diffusing transmission formula for solid particulate matter spectrum Non-Destructive Testing is popped one's head in |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107917891A true CN107917891A (en) | 2018-04-17 |
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| CN201711371162.6A Withdrawn CN107917891A (en) | 2017-12-19 | 2017-12-19 | A kind of optical fiber diffusing transmission formula for solid particulate matter spectrum Non-Destructive Testing is popped one's head in |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109100333A (en) * | 2018-09-21 | 2018-12-28 | 深圳市长隆科技有限公司 | Reflective probe and fluid on-line detector |
-
2017
- 2017-12-19 CN CN201711371162.6A patent/CN107917891A/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109100333A (en) * | 2018-09-21 | 2018-12-28 | 深圳市长隆科技有限公司 | Reflective probe and fluid on-line detector |
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Application publication date: 20180417 |