CN109238623A - A kind of silk thread mounting structure and its installation method for wind tunnel test part - Google Patents
A kind of silk thread mounting structure and its installation method for wind tunnel test part Download PDFInfo
- Publication number
- CN109238623A CN109238623A CN201811346689.8A CN201811346689A CN109238623A CN 109238623 A CN109238623 A CN 109238623A CN 201811346689 A CN201811346689 A CN 201811346689A CN 109238623 A CN109238623 A CN 109238623A
- Authority
- CN
- China
- Prior art keywords
- silk thread
- wing
- test piece
- type test
- piece surface
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000012360 testing method Methods 0.000 title claims abstract description 108
- 238000000034 method Methods 0.000 title claims abstract description 29
- 238000009434 installation Methods 0.000 title claims abstract description 15
- 239000003292 glue Substances 0.000 claims abstract description 33
- 238000002474 experimental method Methods 0.000 claims abstract description 28
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 8
- 239000000835 fiber Substances 0.000 claims description 5
- 239000007787 solid Substances 0.000 claims 1
- 239000002390 adhesive tape Substances 0.000 description 9
- 238000012800 visualization Methods 0.000 description 8
- 238000005516 engineering process Methods 0.000 description 4
- 239000012780 transparent material Substances 0.000 description 2
- 230000000007 visual effect Effects 0.000 description 2
- 241000692569 Stylephorus chordatus Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000003760 hair shine Effects 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M9/00—Aerodynamic testing; Arrangements in or on wind tunnels
- G01M9/02—Wind tunnels
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M9/00—Aerodynamic testing; Arrangements in or on wind tunnels
- G01M9/02—Wind tunnels
- G01M9/04—Details
Landscapes
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- General Physics & Mathematics (AREA)
- Aerodynamic Tests, Hydrodynamic Tests, Wind Tunnels, And Water Tanks (AREA)
Abstract
The invention discloses a kind of silk thread mounting structures and its installation method for wind tunnel test part, miniature aperture is vertically processed using on Wing-type test piece surface, silk thread is vertically planted into the aperture of Wing-type test piece surface, silk thread one end is planted vertically to be consolidated in the aperture of Wing-type test piece surface, and the silk thread other end, which exposes to Wing-type test piece surface, freely to be changed with incoming flow.Glue is injected in aperture using dispensing water dropper and consolidates silk thread, the glue point that can avoid glue exposes to Wing-type test piece surface, guarantees the bright and clean of Wing-type test piece surface.Silk thread is vertically planted into the aperture of Wing-type test piece surface, also can avoid silk thread and contacted with the direct of Wing-type test piece surface, reduce the complexity of silk thread installation；Easy to operate using vertical Planting Patterns, silk thread will not descend slowly and lightly with incoming flow during the experiment, improve the efficiency of wind tunnel experiment.Silk thread deforms with incoming flow facilitates the observation of flow characteristics of the operator for Wing-type test piece surface.
Description
Technical field
The present invention relates to low-speed wind tunnel Flow Visualization Technologies fields, specifically, being related to a kind of general by the way of plantation
Silk thread is installed vertically on the low-speed wind tunnel Method of flow visualization on testpieces surface.
Background technique
Silk thread Flow Visualization Technologies are the silk threads in the testpieces surface layout certain length for needing to carry out wind tunnel experiment, often
The swaying direction of root silk thread represents the air-flow direction at the point, so that experimenter being capable of visual observation air stream
The technology of dynamic feature.Silk thread Flow Visualization Technologies are one of the methods of earliest flow visualization on surfaces, be usually used in flow separation and
The observation and judgement in produced whirlpool, are of great significance in wind tunnel experiment and field of fluid mechanics in flowing.But at present in silk
Silk thread installation method used by line FLOW VISUALIZATION field is that silk thread is sticked to testpieces surface using glue or adhesive tape, makes silk
Line and testpieces surface profile trend are consistent, and this method operation is more demanding, and time is longer, and glue point, adhesive tape
Thickness necessarily will affect the smooth degree of model surface and then impact to experimental result.
Patent of invention CN104075870 discloses that " a kind of low-speed wind tunnel fluorescence silk thread based on fiber line and its flowing are aobvious
Show method ".This method includes paper tape, adhesive tape and several fluorescence silk threads, and fluorescence silk thread is pasted between adhesive tape and paper tape, is used
The characteristics of light source induced fluorescence silk thread of specific wavelength shines, and is shot using apparatus for making a video recording to experimentation, this method exists
It is good in environmental protection, fluorescence silk thread display effect, but it uses adhesive tape that fluorescence silk thread is pasted on testpieces surface, and then carries out wind-tunnel
Experiment, tape thickness will affect the finish on testpieces surface and then influence experimental result, and adhesive tape and fluorescence silk thread are pasted
Mode in testpieces surface, the early-stage preparations time is longer for experiment, operating difficulty is higher.
A kind of " hypersonic interior rotatable air intake duct and the wall in distance piece flow field are disclosed in patent of invention CN106768813
Face silk thread display methods ".This method is that the part wall of interior rotatable air intake duct and distance piece inner flow passage is applicable in transparent material to set
It changes, side transparent material processes multiple rows of micropore on the transparent wall surface in the other side, be pasted onto wall after silk thread is passed through micropore for observing
On the outside of face, to observe interior flow field in an experiment.This method feature is to observe inside stream in an experiment
Field variation, but silk thread is passed through micropore and is adhered to the complexity that wall surface outside increases experiment again by it, is unfavorable for experimenter's
Operation.
Summary of the invention
In order to avoid silk thread is fixed on test using adhesive tape or glue by silk thread FLOW VISUALIZATION in wind-tunnel in the prior art
The problem of part surface, adhesive tape or cementing dot thickness can impact experimental result, the present invention propose a kind of for wind tunnel test
The silk thread mounting structure and its installation method of part；The silk thread mounting structure and its installation method are vertical on wing model part surface
Miniature aperture is processed, silk thread is planted vertically and is consolidated in the miniature aperture on wing model part surface, silk thread and testpieces are avoided
The direct contact on wing model surface reduces the complexity of silk thread installation, improves the efficiency of wind tunnel experiment.
The technical solution adopted by the present invention to solve the technical problems is: for the silk thread mounting structure of wind tunnel test part,
It is characterized by comprising Wing-type test piece and silk thread, the Wing-type test piece surface is equidistantly evenly equipped with several vertical apertures, if
Dry small structure shape is identical, and the small hole depth in Wing-type test piece surface is less than Wing-type test piece thickness；The silk thread is that fluorescence is fine
Line or buiky yarn Woolen yarn are tieed up, silk thread both ends use dispensing water dropper, and bifurcated, the number of silk thread will not occur for silk thread during the experiment
Amount is identical with the small hole number in Wing-type test piece surface, is injected glue in the aperture of Wing-type test piece surface using dispensing water dropper, silk
Line one end is planted vertically to be consolidated in the aperture of Wing-type test piece surface, and the silk thread other end exposes to Wing-type test piece surface can be with next
Stream freely changes, and the silk thread protruded length is at least 6mm；The wire diameter is less than Wing-type test piece boundary layer thickness；Institute
Wing-type test piece surface hole diameter is stated greater than wire diameter.
A kind of silk thread installation method carrying out wind tunnel test part using the silk thread mounting structure, it is characterised in that including
Following steps:
Step 1. determines the size of Wing-type test piece and silk thread；It is vertically beaten using microbit on Wing-type test piece surface
Hole, several small structure sizes are identical, and Wing-type test piece surface orifice size is 3mm~5mm, and Wing-type test piece surface aperture is horizontal
Longitudinal equidistant arrangement, is divided into 20mm~25mm；
Step 2. chooses silk thread；Upper glue is dripped at the both ends of selected silk thread using dispensing needle head, it is ensured that during the experiment
Bifurcated will not occur for wire ends, silk thread vertically be planted in the aperture of Wing-type test piece surface, and pass through 495 glue or 502
Glue consolidates silk thread, and when silk thread and aperture consolidate, glue cannot overflow aperture to guarantee that Wing-type test piece surface is smooth；It is selected
Wire diameter is taken to should be less than 0.15mm, length is 15~25mm；
Wing-type test piece is put into low-speed small wind-tunnel and tested by step 3., guarantees that silk thread shows process in wind tunnel experiment
It is clear and experimental result accurate；
Step 4. arranges experimental result.
Beneficial effect
A kind of silk thread mounting structure and its installation method for wind tunnel test part proposed by the present invention, using microbit
In the vertical machining small in Wing-type test piece surface, silk thread is vertically planted into the aperture of Wing-type test piece surface, dripped using dispensing
Glue is injected aperture by head, so that silk thread consolidates in aperture, the glue point of glue is avoided to expose to Wing-type test piece surface, is guaranteed
Wing-type test piece surface it is bright and clean.Silk thread is vertically planted into the aperture of Wing-type test piece surface, can avoid silk thread and aerofoil profile is tried
Test the direct contact on part surface；Since Wing-type test piece has corresponding camber, using vertical Planting Patterns relative to operator
Member it is more convenient, and can guarantee experimentation in silk thread will not descend slowly and lightly with incoming flow, silk thread one end can deform with incoming flow so as to
Operator can directly visual experimental result.
The silk thread mounting structure and its installation method that the present invention is used for wind tunnel test part are compared in the prior art, the silk thread
Tail portion will not scatter in wind tunnel experiment, will not influence the judgement to Wing-type test piece surface flow field, can be improved and visually test
Identification；Using vertically planting silk thread into testpieces aerofoil surface aperture, reduce adhesive tape or glue point thickness to experimental result
Influence, increase the accuracy of experimental result；It avoids silk thread from contacting with the direct of Wing-type test piece surface, reduces operator
Complexity of the member when installing silk thread, improves the efficiency that wind-tunnel is visually tested.
Detailed description of the invention
With reference to the accompanying drawing with embodiment to a kind of silk thread mounting structure and its peace for wind tunnel test part of the present invention
Dress method is described in further detail.
Fig. 1 is the silk thread mounting structure shaft side figure that the present invention is used for wind tunnel test part.
Fig. 2 is that Wing-type test piece surface silk thread of the invention plants side view.
Fig. 3 is the silk thread mounting structure and its installation method flow chart that the present invention is used for wind tunnel test part.
In figure:
1. 2. Wing-type test piece of silk thread, 3. Wing-type test piece surface aperture
Specific embodiment
The present embodiment is a kind of silk thread mounting structure and its installation method for wind tunnel test part.
Refering to fig. 1~Fig. 3, the present embodiment is used for the silk thread mounting structure of wind tunnel test part, by Wing-type test piece 2 and silk thread
1 composition.Wherein, 2 surface of Wing-type test piece is equidistantly evenly equipped with several vertical apertures, and several small structure shapes are identical, and protects
It is smooth to demonstrate,prove 2 surface of Wing-type test piece.Silk thread 1 is fluorescent fiber line or buiky yarn Woolen yarn, and silk thread both ends use dispensing water dropper,
Bifurcated will not occur for silk thread in experimentation.The quantity of silk thread is identical with Wing-type test piece surface 3 quantity of aperture, and silk thread one end is perpendicular
It directly plants and is consolidated in the aperture of Wing-type test piece surface, the silk thread other end, which exposes to Wing-type test piece surface, freely to be become with incoming flow
Change, silk thread protruded length is at least 6mm, and wire diameter is less than Wing-type test piece boundary layer thickness.Wing-type test piece surface aperture
Diameter is greater than wire diameter；The small hole depth in Wing-type test piece surface is less than Wing-type test piece thickness.
A kind of silk thread installation method carrying out wind tunnel test part using the silk thread mounting structure, it is characterised in that including
Following steps:
First step determines the size of Wing-type test piece and silk thread；It is vertically beaten using microbit on Wing-type test piece surface
Hole；Several small structure sizes are identical, and Wing-type test piece surface orifice size is 3mm~5mm, and Wing-type test piece surface aperture is horizontal
Longitudinal equidistant arrangement, is divided into 20mm~25mm.
Second step chooses silk thread；Glue is instilled at the both ends of selected silk thread using dispensing needle head, it is ensured that during the experiment
Bifurcated will not occur for wire ends；Glue is injected by Wing-type test piece surface aperture using dispensing water dropper, silk thread and aperture consolidate
When, glue cannot overflow aperture；Silk thread is vertically planted in the aperture of Wing-type test piece surface, and passes through 495 glue or 502 glue
Water consolidates silk thread and aperture, and when silk thread and aperture consolidate, glue cannot overflow aperture；Selected wire diameter should be less than
0.15mm, length are 15~25mm.
Testpieces is put into low-speed small wind-tunnel and tested by third step；Guarantee that silk thread shows process in wind tunnel experiment
It is clear and experimental result accurate.
4th step arranges experimental result.
Embodiment
The length of Wing-type test piece 2 in the present embodiment is 195mm, chord length 470mm, and wing area of reference is
91650mm2.Wing-type test piece surface hole diameter in the present embodiment is greater than wire diameter 0.15mm, to guarantee that silk thread 2 is smooth
It plants into Wing-type test piece surface aperture 3, glue instills Wing-type test piece surface aperture 3 by dispensing water dropper.In this example
The diameter of Wing-type test piece surface aperture 3 is 0.25mm, and 3 depth of aperture should be less than the thickness of Wing-type test piece 2,3 depth of aperture
Take range between 3mm~5mm；The depth of Wing-type test piece surface aperture 3 is 3mm in this example.Silk thread 1 is vertically planted into the wing
In type testpieces surface aperture 3；The vertically and horizontally equidistant arrangement of Wing-type test piece surface aperture 3, is divided into 20mm~25mm therebetween, this
Spacing in example between the aperture of Wing-type test piece surface is 20mm.Silk thread 1 using the preferable fluorescent fiber line of FLOW VISUALIZATION or
The Woolen yarn of buiky yarn material；1 diameter of silk thread is less than 0.15mm, and length is 15~25mm, and 1 diameter of silk thread is less than Wing-type test piece
Boundary layer thickness uses fluorescent fiber line in this example, the length is 20mm, diameters to guarantee the reliability in wind tunnel experiment
For 0.1mm.
When operating in this example, glue is instilled at the both ends of silk thread 1 using dispensing needle head, it is ensured that 1 end of silk thread will not
Bifurcated, the process for showing that silk thread 1 in wind tunnel experiment is high-visible, and experimental result is accurate.This example 495 glue of selection do viscous
Tie agent.The Wing-type test piece 2 for carrying out wind tunnel experiment is chosen, using diameter is the microbit of 0.25mm perpendicular to Wing-type test piece
Surface punching, obtains aperture 3, equidistantly arranges between the aperture of Wing-type test piece surface, to guarantee silk during wind tunnel experiment
It will not occur mutually to wind between line 1.Aperture 3 depth in Wing-type test piece surface is 3mm, 3 depth of Wing-type test piece surface aperture
No more than the thickness of Wing-type test piece, to guarantee the integrality of Wing-type test piece 2.Wing-type test piece surface aperture inner wall answers light
It is sliding, smoothly 495 glue are being instilled in aperture 3 using dispensing needle head.Silk thread 1 is vertically planted into aperture, is kept outside silk thread 1
Dew length is no less than 6mm, and to estimate experimental result when guaranteeing experiment, silk thread 1 leaks outside length as 10mm in this example.Using point
It drips syringe needle to inject 495 glue in aperture 3, guarantees that 495 glue cannot overflow aperture, it is ensured that the bright and clean of Wing-type test piece surface
Degree improves the accuracy of wind tunnel experiment without influence.Silk thread 1 is planted to be consolidated into one end of aperture 3 and aperture 3, during the experiment
It will not descend slowly and lightly with incoming flow；In wind tunnel experiment, the other end of silk thread 1 can change with incoming flow, so as to operator
Observation experiment result；The accuracy of experimental display result, it is ensured that flow characteristics of the operator for Wing-type test piece surface
Observation and research.
Claims (2)
1. a kind of silk thread mounting structure for wind tunnel test part, it is characterised in that: including Wing-type test piece and silk thread, the wing
Type testpieces surface is equidistantly evenly equipped with several vertical apertures, and several small structure shapes are identical, Wing-type test piece surface aperture
Depth is less than Wing-type test piece thickness；The silk thread is fluorescent fiber line or buiky yarn Woolen yarn, and silk thread both ends are dripped using dispensing
Head, bifurcated will not occur for silk thread during the experiment, and the quantity of silk thread is identical with the small hole number in Wing-type test piece surface, using point
Glue water dropper injects glue in the aperture of Wing-type test piece surface, and silk thread one end is planted solid in the aperture of Wing-type test piece surface vertically
Knot, the silk thread other end, which exposes to Wing-type test piece surface, freely to be changed with incoming flow, and the silk thread protruded length is at least 6mm；
The wire diameter is less than Wing-type test piece boundary layer thickness；Wing-type test piece surface hole diameter is greater than wire diameter.
2. a kind of silk thread installation method for carrying out wind tunnel test part using silk thread mounting structure described in claim 1, feature
Be the following steps are included:
Step 1. determines the size of Wing-type test piece and silk thread；Using microbit in Wing-type test piece surface vertical perforating, if
Dry small structure size is identical, and Wing-type test piece surface orifice size is 3mm~5mm, Wing-type test piece surface aperture transverse and longitudinal
Equidistant arrangement, is divided into 20mm~25mm；
Step 2. chooses silk thread；Upper glue is dripped at the both ends of selected silk thread using dispensing needle head, it is ensured that silk thread during the experiment
Bifurcated will not occur for end, silk thread vertically be planted in the aperture of Wing-type test piece surface, and pass through 495 glue or 502 glue
Silk thread is consolidated, when silk thread and aperture consolidate, glue cannot overflow aperture to guarantee that Wing-type test piece surface is smooth；Selected silk
Linear diameter should be less than 0.15mm, and length is 15~25mm；
Wing-type test piece is put into low-speed small wind-tunnel and tested by step 3., guarantees that silk thread shows that process is clear in wind tunnel experiment
And experimental result is accurate；
Step 4. arranges experimental result.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811346689.8A CN109238623A (en) | 2018-11-13 | 2018-11-13 | A kind of silk thread mounting structure and its installation method for wind tunnel test part |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811346689.8A CN109238623A (en) | 2018-11-13 | 2018-11-13 | A kind of silk thread mounting structure and its installation method for wind tunnel test part |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109238623A true CN109238623A (en) | 2019-01-18 |
Family
ID=65078322
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811346689.8A Pending CN109238623A (en) | 2018-11-13 | 2018-11-13 | A kind of silk thread mounting structure and its installation method for wind tunnel test part |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109238623A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111579195A (en) * | 2020-05-15 | 2020-08-25 | 西北工业大学 | Device and method for installing fluorescent microfilaments on surface of wing model |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08114526A (en) * | 1994-10-14 | 1996-05-07 | Mitsubishi Heavy Ind Ltd | Wind tunnel test visualizing method and device |
| CN104075870A (en) * | 2014-07-08 | 2014-10-01 | 中国空气动力研究与发展中心低速空气动力研究所 | Low-speed wind tunnel fluorescent silk thread based on fiber threads and flow visualization method thereof |
| CN204884326U (en) * | 2015-06-26 | 2015-12-16 | 上海工程技术大学 | Experimental device for be used for demonstrating pneumatic performance of wing |
| CN206019983U (en) * | 2016-07-19 | 2017-03-15 | 上海工程技术大学 | A kind of aerodynamics of wing experimental simulation device |
| CN106768813A (en) * | 2016-12-05 | 2017-05-31 | 中国科学技术大学 | Hypersonic interior rotatable air intake duct and the wall silk thread display methods in distance piece flow field |
| CN106959200A (en) * | 2017-03-22 | 2017-07-18 | 中国科学技术大学 | The image pickup method and filming apparatus of interior rotatable Flow Field In An Inlet |
| CN108154769A (en) * | 2018-03-20 | 2018-06-12 | 广东三嘉教育装备有限公司 | A kind of experimental provision and experimental method of researching airfoil lift secret |
-
2018
- 2018-11-13 CN CN201811346689.8A patent/CN109238623A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08114526A (en) * | 1994-10-14 | 1996-05-07 | Mitsubishi Heavy Ind Ltd | Wind tunnel test visualizing method and device |
| CN104075870A (en) * | 2014-07-08 | 2014-10-01 | 中国空气动力研究与发展中心低速空气动力研究所 | Low-speed wind tunnel fluorescent silk thread based on fiber threads and flow visualization method thereof |
| CN204884326U (en) * | 2015-06-26 | 2015-12-16 | 上海工程技术大学 | Experimental device for be used for demonstrating pneumatic performance of wing |
| CN206019983U (en) * | 2016-07-19 | 2017-03-15 | 上海工程技术大学 | A kind of aerodynamics of wing experimental simulation device |
| CN106768813A (en) * | 2016-12-05 | 2017-05-31 | 中国科学技术大学 | Hypersonic interior rotatable air intake duct and the wall silk thread display methods in distance piece flow field |
| CN106959200A (en) * | 2017-03-22 | 2017-07-18 | 中国科学技术大学 | The image pickup method and filming apparatus of interior rotatable Flow Field In An Inlet |
| CN108154769A (en) * | 2018-03-20 | 2018-06-12 | 广东三嘉教育装备有限公司 | A kind of experimental provision and experimental method of researching airfoil lift secret |
Non-Patent Citations (2)
| Title |
|---|
| 余安远等: "高超声速内转进气道起动性能试验研究", 中国航天第三专业信息网第三十九届技术交流会暨第三届空天动力联合会议论文集——S03吸气式与组合推进技术, pages 4 * |
| 李祝飞等: "高超声速内转式进气道流动的壁面丝线显示", 推进技术, no. 07 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111579195A (en) * | 2020-05-15 | 2020-08-25 | 西北工业大学 | Device and method for installing fluorescent microfilaments on surface of wing model |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109238623A (en) | A kind of silk thread mounting structure and its installation method for wind tunnel test part | |
| CN209117295U (en) | A kind of fluorescence silk thread mounting structure based on sleeve | |
| CN209117296U (en) | A kind of silk thread mounting structure for wind tunnel test part | |
| CN114894428A (en) | Fluid flow measuring method based on deflection angle of fluorescent microwire | |
| US1547562A (en) | Pipette | |
| CN209570320U (en) | A kind of fluorescence silk thread mounting device | |
| CN206362686U (en) | Drawing type adhesion testing device | |
| CN109459205A (en) | A kind of fluorescence silk thread mounting device and installation method | |
| CN111982452B (en) | Planting device for planting fluorescent microfilaments on surface of wing | |
| CN100383303C (en) | Dedicated mechanical vertical twister for long strand silk dryer | |
| CN205719636U (en) | A kind of harvester of micro quantitative determination sampling sample-adding | |
| CN109357834A (en) | A kind of fluorescence silk thread mounting structure based on sleeve | |
| CN204855198U (en) | Quantitative sample thief of liquid sample trace | |
| CN209646880U (en) | A kind of profiling Glue dripping head | |
| CN205941073U (en) | Disposable ration blood sampling straw | |
| CN208748119U (en) | A kind of micro flow chip of real-time detection infection | |
| CN207528781U (en) | A kind of looper structure vertical probe card | |
| CN108801893A (en) | A kind of solvent resistance test wiping head | |
| CN207709321U (en) | A kind of connector-cable point glue equipment | |
| CN202277941U (en) | Coating machine | |
| WO2018130076A1 (en) | Pen type liquid guide infiltrating device | |
| CN206740184U (en) | A kind of air channel measurement apparatus | |
| CN204107527U (en) | A kind of pipette with branch road | |
| CN202621396U (en) | Narrow slit type coating device capable of preventing air bubble generation | |
| CN210906064U (en) | Acid liquor dropper for artificial synthetic diamond purification process |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20190118 |