CN106955803A - A kind of negative flow resistance oscillator and construction method - Google Patents
A kind of negative flow resistance oscillator and construction method Download PDFInfo
- Publication number
- CN106955803A CN106955803A CN201710261101.8A CN201710261101A CN106955803A CN 106955803 A CN106955803 A CN 106955803A CN 201710261101 A CN201710261101 A CN 201710261101A CN 106955803 A CN106955803 A CN 106955803A
- Authority
- CN
- China
- Prior art keywords
- chamber
- flow resistance
- entrance
- fluid channel
- outlet
- 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.)
- Granted
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B1/00—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
- B05B1/02—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to produce a jet, spray, or other discharge of particular shape or nature, e.g. in single drops, or having an outlet of particular shape
- B05B1/08—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to produce a jet, spray, or other discharge of particular shape or nature, e.g. in single drops, or having an outlet of particular shape of pulsating nature, e.g. delivering liquid in successive separate quantities ; Fluidic oscillators
- B05B1/083—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to produce a jet, spray, or other discharge of particular shape or nature, e.g. in single drops, or having an outlet of particular shape of pulsating nature, e.g. delivering liquid in successive separate quantities ; Fluidic oscillators the pulsating mechanism comprising movable parts
- B05B1/086—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to produce a jet, spray, or other discharge of particular shape or nature, e.g. in single drops, or having an outlet of particular shape of pulsating nature, e.g. delivering liquid in successive separate quantities ; Fluidic oscillators the pulsating mechanism comprising movable parts with a resiliently deformable element, e.g. sleeve
Abstract
The present invention proposes a kind of negative flow resistance oscillator and construction method, and construction method is the constant flow resistance for including producing bias, the elastic construction deformed under bias, the buckling flow resistance that flow resistance changes with pump pressure；Entrance, outlet, chamber are included according to a kind of negative flow resistance oscillator of above-mentioned construction method, the entrance is located at the upper end of chamber, and the outlet is located at the lower end of chamber；Elastic construction is provided with the middle of the chamber, and chamber is separated into upper chamber and lower chambers；Provided with the fluid channel for producing constant flow resistance between the upper chamber and lower chambers, fluid channel connects upper chamber with lower chambers；The negative flow resistance oscillator structure of the present invention is simple, and operational control more facilitates.
Description
Technical field
The invention belongs to micro-fluidic device, particularly a kind of negative flow resistance oscillator and construction method.
Background technology
Micro-fluidic is an intercrossing section for being related to the multiple fields such as precision optical machinery, hydrodynamics, biomedicine, chemistry
, there is extensive use in terms of biochemical analysis, medical diagnosis, drug screening in technology, and with efficiency high, required sample/
The advantages of reagent is few, instrument and equipment is easy to Miniaturization Design, thus very fast development is being obtained in recent years.
Fluidic oscillator is widely used in the control and measurement of fluid, fluid mixing, heat transfer enhancing, Pollution protection and clear
Clean passage, enhancing chemical reaction etc..The comparative maturity that traditional macrofluid oscillator technique has developed, such as：
Gopalan S.,Russell G.,et al.2009.High efficiency multiple throat fluidic
oscillator.United States Patent.No.:2009/0236449, United States Patent (USP)：2009/0236449A1；
Stouffer R.D., Santamarina A.2006.Fluidic oscillator and method, United States Patent (USP)：
7134609B1；Raghu S.2001.Feedback-free fluidic oscillator and method, United States Patent (USP):
6253782B1 etc., these designs generally all rely on fluid inertia, and only worked in the case of high flow capacity.In low Reynolds
In the case of number, particularly under microfluidic field, related design alternative is also very limited.
Before, we have invented a kind of oscillator (Xia H.M., Wang Z.P., Fan W., Wang Z.F., A
microfluidic device for altering a fluid flow and a microfluidic system
including the microfluidic device,International Publication No.:WO 2012/
036627A1), a main chamber and an elastic membrane are mainly included.But the structure of this oscillator is relative complex and makes
High cost；At the same time, because the edge of the elastic membrane of the oscillator is unfixed, this may also influence whole oscillator
The uniformity and stability of performance.
The content of the invention
Technical problem solved by the invention is to provide a kind of based on negative differential flow resistance principle (Negative
Differential flow resistance) fluidic oscillator (referred to as negative flow resistance oscillator), and build this negative stream
The method of oscillator is hindered, to solve under Laminar Flow, fluid viscous force accounts for leading, microfluid oscillator and selects limited ask
Topic.Additionally further optimize the complicated high cost of oscillator structure of prior art, the problem of stability is inadequate.
The technical solution for realizing the object of the invention is：
A kind of construction method of negative flow resistance oscillator, including the constant flow resistance of bias is produced, become under bias
The elastic construction of shape, the buckling flow resistance that flow resistance changes with pump pressure.
A kind of negative flow resistance oscillator, including entrance, outlet, chamber, the entrance are located at the upper end of chamber, the outlet position
In the lower end of chamber；Elastic construction is provided with the middle of the chamber, and chamber is separated into upper chamber and lower chambers；The upper chamber
Provided with the fluid channel for producing constant flow resistance between lower chambers, fluid channel connects upper chamber with lower chambers.
A kind of negative flow resistance oscillator, including entrance, outlet, chamber, the entrance are located at the upper end of chamber, the outlet position
In the lower end of chamber；One end of elastic plate is fixed with chamber, and fluid channel is used as provided with gap between the other end and chamber；Elastic plate
Form the structure for the cantilever slab that one end is fixed.
The present invention compared with prior art, its remarkable advantage：
(1) the elastic construction edge in the present invention is the complete state for clamping or fixing, and robustness is good.
(2) microchannel, the design of micropore can replace the opening on groove or elastic construction, it is easier to device performance
Characterized.
(3) elastic construction can integrated processing or individually processing with chamber.
(4) negative flow resistance oscillator of the invention can calculate the water capacity (fluid by the deformation quantity of elastic construction
Capacitance), flow resistance (flow resistance) is calculated according to the length and cross-sectional area of runner, according to the close of fluid
The parameters such as degree calculate the parameters such as fluid inductance (fluid inductance).
(5) oscillator arrangement of the invention is simple in construction, and operational control more facilitates.
The present invention is described in further detail below in conjunction with the accompanying drawings.
Brief description of the drawings
Fig. 1 is the structural representation of the negative flow resistance oscillator of single fluid channel in the embodiment of the present invention 1.
Fig. 2 is the structural representation of the negative flow resistance oscillator of multiple fluid channels in the embodiment of the present invention 1.
Fig. 3 is that the sandwich construction of elastic construction and the negative flow resistance oscillator of baseboard material identical in the embodiment of the present invention 1 shows
It is intended to.
Fig. 4 is that the three-decker of elastic construction and the negative flow resistance oscillator of baseboard material identical in the embodiment of the present invention 1 is shown
It is intended to.
Fig. 5 is the structural representation of the negative flow resistance oscillator embodiment 2 of the present invention.
Fig. 6 is the main structure diagram of the negative flow resistance oscillator embodiment 3 of the present invention.
Fig. 7 is the overlooking the structure diagram of the negative flow resistance oscillator embodiment 3 of the present invention.
Fig. 8 is elastic construction and structural representation of the chamber for overall processing in the negative flow resistance oscillator of the present invention.
Embodiment
A kind of construction method of negative flow resistance oscillator of the present invention, including the constant flow resistance of bias is produced, in bias effect
Under the elastic construction that deforms, the buckling flow resistance that flow resistance changes with pump pressure；One chamber is set first, and entrance is located at
Chamber upper end, outlet is located at chamber lower end, and chamber is divided into upper and lower two chambers by elastic construction；Between upper and lower chamber
Fluid channel is set to produce constant flow resistance to fluid；Fluid flows into chamber from entrance, and upper chamber is with under the effect of constant flow resistance
A bias can be produced between chamber；In the presence of bias, elastic construction is bent downwardly, elastic construction and lower chambers lower end table
Face constitutes a buckling flow resistance；And the size of buckling flow resistance changes with the change of the pump pressure outside chamber inlet.
According to a kind of negative flow resistance oscillator of above-mentioned construction method, including entrance 1, outlet 2, chamber, it is characterised in that institute
The upper end that entrance 1 is located at chamber is stated, the outlet 2 is located at the lower end of chamber；Elastic construction 4 is provided with the middle of the chamber, and will
Chamber is separated into upper chamber 31 and lower chambers 32；Provided with the miniflow for producing constant flow resistance between the upper chamber 31 and lower chambers 32
Road 5, fluid channel 5 connects upper chamber 31 with lower chambers 32.
Further, the elastic construction 4 is the elastic metallic such as elastic membrane or silicon rubber, copper or other any flexible materials
Expect the elastic plate being made.
The elastic construction 4 is fixed between upper chamber 31 and lower chambers 32 after can individually processing, can also be whole with chamber
Body is processed.
The entrance 1 and the flow direction of outlet 2 can be mutually perpendicular to, or be reversed with identical.
Embodiment 1.
With reference to Fig. 1-2, a kind of negative flow resistance oscillator, including entrance 1, outlet 2, chamber, the entrance 1 be located at chamber it is upper
End, the outlet 2 is located at the lower end of chamber；Elastic construction 4 is provided with the middle of the chamber, and chamber is separated into the He of upper chamber 31
Lower chambers 32；Provided with the fluid channel 5 for producing constant flow resistance between the upper chamber 31 and lower chambers 32, fluid channel 5 is by upper chamber
31 connect with lower chambers 32；The fluid channel 5 is arranged on the outside of chamber 3, and quantity is at least 1.
In some embodiments, the size of the fluid channel 5 is simultaneously much smaller than entrance 1 and the size of outlet 2, to produce
Constant flow resistance, further to produce bias between upper and lower chamber, elastic construction 4 starts bending.
In other embodiment, fluid channel 5 uses S-shaped or Z-shaped roundabout shape flow passage structure, with upper and lower chamber
Between produce bias so that elastic construction 4 produces bending under bias；Or multiple obstruction liquid flows are set in fluid channel 5
The grid in road is to produce constant flow resistance, to produce bias between upper and lower chamber.
With reference to Fig. 1, the flow direction of the entrance 1 is set parallel to the plane of elastic construction 4, and the flow direction of outlet 2 is perpendicular to entering
The flow direction of mouth 1；With reference to Fig. 2, the flow direction of the entrance 1 is set perpendicular to the plane of elastic construction 4, the flow direction of outlet 2 parallel to
The flow direction of entrance 1, and flow to identical；With reference to Fig. 3, the flow direction of the entrance 1 is set parallel to the plane of elastic construction 4, outlet 2
Flow direction parallel to the flow direction of entrance 1, and flow direction is opposite；With reference to Fig. 4, the flow direction of the entrance 1 is parallel to the flat of elastic construction 4
Face is set, and the flow direction of outlet 2 and is flowed to identical parallel to the flow direction of entrance 1.
With reference to Fig. 4, the processing integrated with chamber of elastic plate 4, to reduce manufacturing procedure, reduces cost.
Embodiment 2.
With reference to Fig. 5, a kind of negative flow resistance oscillator, including entrance 1, outlet 2, chamber, the entrance 1 is located at the upper of chamber
End, the outlet 2 is located at the lower end of chamber；Elastic construction 4 is provided with the middle of the chamber, and chamber is separated into the He of upper chamber 31
Lower chambers 32；Provided with the fluid channel 5 for producing constant flow resistance between the upper chamber 31 and lower chambers 32, fluid channel 5 is by upper chamber
31 connect with lower chambers 32；The fluid channel 5 is arranged on the inside of chamber 3, and is arranged on elastic construction 4, on elastic construction 4
Provided with through hole as fluid channel 5, the size of through hole is much smaller than entrance 1 and the size of outlet 2, to produce constant flow resistance, above and below
Bias is produced between chamber so that elastomeric element 4 starts bending.
Embodiment 3.
With reference to Fig. 6-7, a kind of negative flow resistance oscillator, including entrance 1, outlet 2, chamber, the entrance 1 be located at chamber it is upper
End, the outlet 2 is located at the lower end of chamber；Elastic plate 6 is provided with the middle of the chamber, and chamber is separated into upper chamber 31 with
Chamber 32；One end of elastic plate 6 is fixed with chamber 3, provided with gap as fluid channel 5 between the other end and chamber, to produce perseverance
Constant current hinders；The structure for the cantilever slab that the formation of elastic plate 6 one end is fixed.
During work, the effect that the elastic construction 4 and chamber 3 are played is similar to the water capacity, when fluid from entrance 1 flows into chamber
When 3, due to the presence of constant flow resistance, a bias can be produced between upper chamber 31 and lower chambers 32, in the presence of bias,
Elastic construction 4 is bent downwardly, and oppositely adds flow resistance, in this case, elastic construction 4 and the lower end table of lower chambers 32
Face also constitutes a buckling flow resistance, and the size of buckling flow resistance changes with the change of the outside of entrance 1 pump pressure.With pump pressure
Increase, the amount of deflection of elastic construction 4 and the flow resistance of fluid also and then increase.When elastic construction 4 is bent to a certain degree, elasticity
Structure 4 can form a narrow gap with the bottom of lower chambers 32, and when fluid flows through gap, fluid velocity accelerates, and due to
Bernoulli effect, a part of static pressure of fluid is changed into dynamic pressure, a pressure drop can be now produced on elastic construction 4 so that bullet
Property structure 4 is further bent downwardly.When reaching a critical pressure value, the faint change of resistance can also produce larger shadow
Ring：Further the outside pump pressure of increase can cause the reduction of flow, that is to say, that：Proton differential flow resistive is negative value, and elastic construction 4 occurs
Self-oscillation, steady flow is changed into Oscillation Flows.Whole fluidic oscillator is similar to an electronics RLC with nonlinear resistance
Oscillator.
With reference to Fig. 8, a kind of process of negative flow resistance oscillator, base plate can by micro- milling, hot pressing, injection, punching, swash
The modes such as light ablation, which are successively processed, ultimately forms oscillator, then by using adhesive bonding, is thermally bonded or passes through machinery folder
The mode held is so that multiple base plates combine.Wherein：Baseboard material can be high molecular polymer (such as PMMA, PC, COC
Deng), glass, metal etc..Elastic construction 4 can be silicon rubber, elastic metal coating or other flexible materials.It is a kind of with reference to Fig. 3
The sandwich construction schematic diagram of negative flow resistance oscillator, including entrance 1, outlet 2, chamber, wherein entrance 1 are machined in first layer base plate,
Upper chamber 31 is machined in second layer base plate with part fluid channel 5, and lower chambers 32 are machined in third layer base plate with part fluid channel, and
The processing integrated with third layer base plate of elastic construction 4, outlet 2 is machined in the 4th layer of base plate, and fluid channel 5 is by upper chamber 31, cavity of resorption
Room 32 is connected；The flow direction of the entrance 1 parallel to elastic construction 4 plane set, outlet 2 flow direction parallel to entrance 1 stream
To, and flow direction is opposite.With reference to Fig. 4, a kind of three-decker schematic diagram of negative flow resistance oscillator, including entrance 1, outlet 2, chamber,
Wherein entrance 1 is machined in first layer base plate, and upper chamber 31 is machined in second layer base plate, lower chambers 32, part with part fluid channel 5
Fluid channel, outlet 2 are machined in third layer base plate, and the processing integrated with third layer base plate of elastic construction 4, the second layer, third layer
Fluid channel 5 upper chamber 31, lower chambers 32 are connected；The flow direction of entrance 1 is set parallel to the plane of elastic construction 4, outlet 2
The flow direction parallel to entrance 1 is flowed to, and is flowed to identical.
The negative flow resistance oscillator of the present invention can calculate the water capacity (fluid by the deformation quantity of elastic construction 4
Capacitance), flow resistance (flow resistance) is calculated according to the length and cross-sectional area of runner, according to the close of fluid
The parameters such as degree calculate the parameters such as fluid inductance (fluid inductance)；The edge of elastic construction 4 in the present invention has been
Complete to clamp or fixed state, robustness is good；Total is simple, and operational control more facilitates.
Although the present invention is disclosed above with preferred embodiment, so it is not limited to the present invention.Skill belonging to of the invention
Has usually intellectual in art field, without departing from the spirit and scope of the present invention, when can be used for a variety of modifications and variations.Cause
This, the scope of protection of the present invention is defined by those of the claims.
Claims (10)
1. a kind of construction method of negative flow resistance oscillator, it is characterised in that the constant flow resistance including producing bias, in bias effect
Under the elastic construction that deforms, the buckling flow resistance that flow resistance changes with pump pressure.
2. the construction method of a kind of negative flow resistance oscillator according to claim 1 a, it is characterised in that chamber is set first
Room, entrance end on the chamber, outlet is located at chamber lower end, and chamber is divided into upper and lower two chambers by elastic construction；
Fluid channel is set to produce constant flow resistance to fluid between upper and lower chamber；Fluid flows into chamber from entrance, in the effect of constant flow resistance
Under, a bias can be produced between upper chamber and lower chambers；In the presence of bias, elastic construction is bent downwardly, elastic construction
A buckling flow resistance is constituted with lower chambers rear surface；And the size of buckling flow resistance changes with the change of pump pressure.
3. a kind of negative flow resistance oscillator of the methods described of claim 1 or 2 is realized, including entrance (1), outlet (2), chamber,
Characterized in that, the entrance (1) is located at the upper end of chamber, the outlet (2) is located at the lower end of chamber；Set in the middle of the chamber
Flexible structure (4), and chamber is separated into upper chamber (31) and lower chambers (32)；The upper chamber (31) and lower chambers (32)
Between upper chamber (31) is connected with lower chambers (32) provided with the fluid channel (5) for producing constant flow resistance, fluid channel (5).
4. negative flow resistance oscillator according to claim 3, it is characterised in that the fluid channel (5) is arranged on chamber (3)
It is outside.
5. negative flow resistance oscillator according to claim 4, it is characterised in that the size of the fluid channel (5) is simultaneously remote small
Size in entrance (1) and outlet (2).
6. negative flow resistance oscillator according to claim 4, it is characterised in that the fluid channel (5) is the runner of roundabout shape
Structure.
7. negative flow resistance oscillator according to claim 3, it is characterised in that the fluid channel (5) is within the cavity, and sets
Put on elastic construction (4), elastic construction (4) is provided with through hole as fluid channel (5), and the size of through hole is much smaller than entrance (1)
With the size of outlet (2).
8. the negative flow resistance oscillator according to claim 6 or 7, it is characterised in that the quantity of the fluid channel (5) is at least
1.
9. a kind of negative flow resistance oscillator according to claim 3, it is characterised in that the elastic construction (4) is elastic membrane
Or elastic plate.
10. the negative flow resistance oscillator of the methods described of claim 1 or 2 is realized, including entrance (1), outlet (2), chamber, it is special
Levy and be, the entrance (1) is located at the upper end of chamber, the outlet (2) is located at the lower end of chamber；One end of elastic plate (6) with
Chamber (3) is fixed, and fluid channel (5) are used as provided with gap between the other end and chamber；The cantilever that elastic plate (6) formation one end is fixed
The structure of plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710261101.8A CN106955803B (en) | 2017-04-20 | 2017-04-20 | Negative flow resistance oscillator and construction method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710261101.8A CN106955803B (en) | 2017-04-20 | 2017-04-20 | Negative flow resistance oscillator and construction method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106955803A true CN106955803A (en) | 2017-07-18 |
| CN106955803B CN106955803B (en) | 2023-04-28 |
Family
ID=59484734
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710261101.8A Active CN106955803B (en) | 2017-04-20 | 2017-04-20 | Negative flow resistance oscillator and construction method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106955803B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108607376A (en) * | 2018-04-26 | 2018-10-02 | 南京理工大学 | A kind of droplet coalescence method and device based on oscillatory flow |
| CN112473371A (en) * | 2020-11-30 | 2021-03-12 | 南京理工大学 | Method for strengthening cross-flow filtration |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1999037137A1 (en) * | 1998-01-26 | 1999-07-29 | Michael Yu | Resilient oscillating disk drip irrigation devices |
| CN2580246Y (en) * | 2002-10-12 | 2003-10-15 | 王金龙 | Film type check valve |
| US20040045605A1 (en) * | 2002-09-09 | 2004-03-11 | Roberto Floh | In-line check valve |
| TWI279661B (en) * | 2005-10-28 | 2007-04-21 | Univ Chung Yuan Christian | Variable capillary slot thin-film throttle |
| CN101562253A (en) * | 2009-05-27 | 2009-10-21 | 青岛武晓集团有限公司 | Liquid flow frame device of all vanadium redox flow battery |
| US20110073188A1 (en) * | 2009-09-30 | 2011-03-31 | Marcus Michael A | Microvalve for control of compressed fluids |
| TW201137554A (en) * | 2010-04-27 | 2011-11-01 | Univ Chung Yuan Christian | A type membrane restrictors with changeable adjustability |
| DE112010005887T5 (en) * | 2010-09-17 | 2013-09-12 | Agency For Science, Technology And Research | Microfluidic device for modifying a fluid flow and microfluidic system with the microfluidic device |
| CN105805328A (en) * | 2014-12-30 | 2016-07-27 | 浙江盾安人工环境股份有限公司 | Rail type gate micro valve device |
-
2017
- 2017-04-20 CN CN201710261101.8A patent/CN106955803B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6085986A (en) * | 1994-05-03 | 2000-07-11 | Yu; Michael | Oscillating disk drives |
| WO1999037137A1 (en) * | 1998-01-26 | 1999-07-29 | Michael Yu | Resilient oscillating disk drip irrigation devices |
| US20040045605A1 (en) * | 2002-09-09 | 2004-03-11 | Roberto Floh | In-line check valve |
| CN2580246Y (en) * | 2002-10-12 | 2003-10-15 | 王金龙 | Film type check valve |
| TWI279661B (en) * | 2005-10-28 | 2007-04-21 | Univ Chung Yuan Christian | Variable capillary slot thin-film throttle |
| CN101562253A (en) * | 2009-05-27 | 2009-10-21 | 青岛武晓集团有限公司 | Liquid flow frame device of all vanadium redox flow battery |
| US20110073188A1 (en) * | 2009-09-30 | 2011-03-31 | Marcus Michael A | Microvalve for control of compressed fluids |
| TW201137554A (en) * | 2010-04-27 | 2011-11-01 | Univ Chung Yuan Christian | A type membrane restrictors with changeable adjustability |
| DE112010005887T5 (en) * | 2010-09-17 | 2013-09-12 | Agency For Science, Technology And Research | Microfluidic device for modifying a fluid flow and microfluidic system with the microfluidic device |
| CN105805328A (en) * | 2014-12-30 | 2016-07-27 | 浙江盾安人工环境股份有限公司 | Rail type gate micro valve device |
Non-Patent Citations (1)
| Title |
|---|
| 夏焕明: "一种新型微流体振荡器及其应用", 《第九届全国流体力学学术会议》 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108607376A (en) * | 2018-04-26 | 2018-10-02 | 南京理工大学 | A kind of droplet coalescence method and device based on oscillatory flow |
| CN108607376B (en) * | 2018-04-26 | 2021-05-07 | 南京理工大学 | Liquid drop fusion method and device based on oscillatory flow |
| CN112473371A (en) * | 2020-11-30 | 2021-03-12 | 南京理工大学 | Method for strengthening cross-flow filtration |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106955803B (en) | 2023-04-28 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Au et al. | Microvalves and micropumps for BioMEMS | |
| Ahn et al. | Disposable smart lab on a chip for point-of-care clinical diagnostics | |
| US10155222B2 (en) | Device for the separation of particles using a bulk acoustic wave field | |
| KR100540143B1 (en) | Microfluidic control device and method for controlling microfluidic | |
| CN108745429B (en) | Multichannel rapid detection microfluid detection chip | |
| JP2004093553A (en) | Cascaded hydrodynamic focusing method and apparatus for microfluidic channels | |
| Tsao et al. | Bonding of thermoplastic microfluidics by using dry adhesive tape | |
| US20080160603A1 (en) | Flow stabilization in micro-and nanofluidic devices | |
| US8210830B2 (en) | Valveless micropump | |
| CN103170265B (en) | A kind of Piezoelectric micro-mixer | |
| Yang et al. | A valveless piezoelectric micropump with a Coanda jet element | |
| Whulanza et al. | Design and Characterization of Finger-Controlled Micropump for Lab-on-a-Chip Devices | |
| CN106955803A (en) | A kind of negative flow resistance oscillator and construction method | |
| CN100540896C (en) | A kind of mini self-priming pump | |
| CN214288265U (en) | High-efficiency single-double emulsion separation splitting microfluidic integrated chip | |
| Hou et al. | Recent trends in structures and applications of valveless piezoelectric pump—A review | |
| Hsu et al. | Equivalent electrical network for performance characterization of piezoelectric peristaltic micropump | |
| CN206731337U (en) | A kind of negative flow resistance oscillator | |
| Liu et al. | Fabrication of a three-layer PDMS pneumatic microfluidic chip for micro liquid sample operation | |
| Matsubara et al. | A Microfabricated Pistonless Syringe Pump Driven by Electro‐Conjugate Fluid with Leakless On/Off Microvalves | |
| Wu et al. | Rapid manufacture of modifiable 2.5-dimensional (2.5 D) microstructures for capillary force-driven fluidic velocity control | |
| Hairer et al. | An integrated flow-cell for full sample stream control | |
| Zhang et al. | A smart and portable micropump for stable liquid delivery | |
| Perdigones et al. | PDMS microdevice for precise liquid aspiration in the submicroliter range based on the Venturi effect | |
| Hsu et al. | An experimental and numerical investigation into the effects of diffuser valves in polymethylmethacrylate (PMMA) peristaltic micropumps |
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 | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |