CN205483923U - Droplet deposit sensor - Google Patents
Droplet deposit sensor Download PDFInfo
- Publication number
- CN205483923U CN205483923U CN201620102576.3U CN201620102576U CN205483923U CN 205483923 U CN205483923 U CN 205483923U CN 201620102576 U CN201620102576 U CN 201620102576U CN 205483923 U CN205483923 U CN 205483923U
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- droplet
- layer
- droplet deposition
- mist droplet
- humiceram
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Abstract
The utility model discloses a droplet deposit sensor, including the wet quick porcelainous electrode of wet quick pottery and connection, wet quick pottery comprises the silane decoration layer on base member layer and surface. Wet quick pottery part is silane nanometer layer, silane micron layer and base member layer from top to bottom respectively, and infiltration that this structure can the effective control droplet reduces the diffusion of droplet at ceramic surface to improve droplet particle diameter measuring rate of accuracy, the reduction droplet coincides because of the diffusion and causes the calculation error of droplet density, the utility model discloses a detect the deposition of electric resistance change analysis droplet.
Description
Technical field
This utility model relates to agricultural aviation spray medicine inspection and surveys and modern plant protection research field, is specifically related to a kind of mist droplet deposition sensor.
Background technology
Aerial pesticide not only has the advantage of process real-time, quick to pest and disease damage sudden, large-area, in complicated agricultural landform,
Such as rugged mountain forest, spread all in the tall and big or agricultural environment of tight plant of arranging, it is also possible to plan work route by GPS navigation
Realize accurately spraying of medicine, possess fabulous working environment and adapt to ability.Unmanned plane is in flight course, and controlled formulation point hangs
Stopping, motility is strong and cost is relatively low.High concentration, efficiently, low latitude, the unmanned plane pesticide application technology of low amounts become China's agricultural and planted
The new force that guarantor field is strong, not only gets the attention, and under National agricultural policy support, is more and more sent out
Exhibition.
During the spray medicine operation of domestic unmanned plane, pesticide deposition detection means is relatively costly, and testing result is the most straightforward.Therefore,
About the effectively detection directly perceived of droplet settlement law and deposition effect be unmanned plane high concentration anti-drift pesticide spraying key technology it
One.
For the detection of spraying droplet sedimentation velocity, someone utilizes Phase Doppler Particle Analyzer " PDPA ", at close simulation gas
Time indoor are carried out.The Doppler frequency shift utilizing the scattered light of the Motion Particles received obtains the velocity information of particle, utilizes difference
The size information of particle is tried to achieve in the phase place change of the scattered light that detector receives.During PDPA detection, due to disposable logical
Cross the possible more than one drop of laser beam；And except drop scattered light, may also have other light, such as reflection light enters
Enter optical receiver system；And measure the Doppler frequency obtained and there is a width, i.e. Doppler frequency spectral line broadening, these are all
It it is the reason causing " PDPA " measurement error.Unmanned plane is complicated at farmland flight environment of vehicle, and analyser volume is relatively big, is not suitable for reality
Application.
For the detection of mist droplet deposition effect, commonly use water sensitive paper both at home and abroad as medicinal liquid deposition detection material.Concrete operations side
Method is that water sensitive paper is fixed on target surface, spraying pesticide, when pesticide droplet deposits to leave trace after in water sensitive paper, logical
The method crossing image procossing obtains the parameters such as drop coverage rate, size droplet diameter size, droplet deposition density, the coefficient of variation.But
Surveying the card i.e. diffusion coefficient of water sensitive paper due to existing aviation spray medicine inspection is about 30%, and drop easily spreads in water sensitive paper, causes
Test result is not accurate enough, nor can obtain the deposition of specific region medicinal liquid.
Notification number is that the patent documentation of CN 204594846 U discloses a kind of realization covering the droplet that droplet amount is measured in real time
Deposition sensors, including: plate capacitors, multi-channel switch, capacitive frequency change-over circuit, frequency-voltage conversion circuit,
Analog to digital conversion circuit and control unit, plate capacitors includes that substrate, substrate are provided with and covers copper wire group, covers copper wire group and include
Multiple spaced first copper cash and the second copper cash, the left end of all of first copper cash connects the first line concentration point, Mei Ge jointly
The right-hand member of two copper cash is connected respectively the second line concentration point, and the line pitch between the first adjacent copper cash and the second copper cash is
0.1mm.This utility model utilizes droplet to drop onto the change that can cause plate capacitors capacitance on plate capacitors, by inciting somebody to action
Capacitance signal change be converted to can be collected voltage signal or current signal, thus realize on capacitor cover droplet amount survey
Amount.Although this mist droplet deposition sensor can relatively accurate response Droplet deposition, but the aspects such as mist droplet particle size distribution cannot be given
Technical parameter.
Utility model content
Not enough for prior art, this utility model provides a kind of mist droplet deposition sensor, by humiceram matrix surface
Organic hydride modified layer is set, changes the mist droplet deposition contact angle when humiceram surface, reduce the droplet expansion at ceramic surface
Dissipate coefficient, thus improve the accuracy of detection, traditional aviation spray medicine inspection can be replaced to survey card.
A kind of mist droplet deposition sensor, including humiceram and the electrode that connects humiceram, described humiceram by base layer and
The organosilan decorative layer composition on surface.
Existing humiceram is improved by this utility model, and the detection applying it to spray medicine mist droplet deposition effect is worked as
In.This utility model, at humiceram base layer surface configuration organosilan decorative layer, reduces the droplet diffusion at ceramic surface,
Make the data such as the such as droplet mean diameter that later image Treatment Analysis draws more accurate.Meanwhile, utilize humiceram resistance with
The characteristic of humidity change, detection resistance reflection relative humidity variations, and then analyze the Droplet deposition in spray medicine appointment region.
The most conventional humiceram has MgCr2O4-TiO2System, TiO2-V2O5System, ZnO-Li2O-V2O5System, ZrCr2O4System
And ZrO2-MgO is.As preferably, described humiceram base layer is MgCr2O4-TiO2It it is humiceram.This material
Sheet resistance value can diminish with the increase of humidity in a wide range, and performance is more stable.
Base layer of the present utility model is laminated structure, makes approximation or surveys the size of card less than existing spray medicine inspection.As preferably,
The thickness of described base layer is 2～3mm, and the porosity is 50～60%.
The application studies proof, when the contact angle on humiceram surface Yu droplet is 85～95 °, it is possible to effectively control the expansion of droplet
Dissipate, improve the accuracy rate that mist droplet particle size is measured, reduce droplet and overlap cause the calculating error of droplet density because of diffusion.Coating
Blocked up meeting causes the inhibition to drop infiltration, and as preferably, the thickness of described organosilan decorative layer is 20～30 μm.
As preferably, organosilan decorative layer is formed by upper and lower two-layer, and upper strata is nano-scale layers, and lower floor is micron order layer.
Described nano-scale layers be organo silane particles particle diameter be nanoscale, described micron order layer be organo silane particles particle diameter be micron order,
Ensureing that mist droplet deposition contact angle in nanometer layer is 85～95 °, mist droplet deposition contact angle on micron layer is 60～70 °.More
For preferably, upper thickness is 0.3～1 μm, and lower thickness is 19～29.7 μm.Be conducive to oozing under drop under this thickness condition.
As preferably, described organosilan is octadecylsilane or cetyl silane.It is more highly preferred to, described organosilan
For octadecylsilane, octadecylsilane does not reacts with water, it is ensured that stability during detection materials'use.Overlay coating
White, when the mist droplet deposition with coloring agent is on its surface, develop the color distincter.
Hydration ruthenic oxide has high ratio electric capacity and the general electric conductivity of metal.As preferably, described electrode is ruthenic oxide
Electrode.Burn deposited ruthenic oxide on humiceram surface and prepare porous electrode.
In order to not affect the analysis carrying out droplet parameter on humiceram surface, ruthenic oxide electrode is arranged on the right of droplet detection faces
Answering on face, as preferably, described organosilan decorative layer is located at the front of base layer, and electrode connects the back side of base layer.Positive and negative
Electrode is covered each by the two ends at the base layer back side, derives lead-in wire from electrode and connects measuring circuit, with the resistance change table recorded
Levy the humiceram absorbtivity to droplet.Measuring circuit of the present utility model is prior art, all uses existing components and parts to assemble.
Compared with prior art, the beneficial effect that this utility model possesses: (1) humiceram of the present utility model part is by up to
Lower it is made up of organosilan nanometer layer, organosilan micron layer and base layer respectively, it is possible to effectively control to ooze under droplet, reduce
Droplet is in the diffusion of ceramic surface, thus improves the accuracy rate that mist droplet particle size is measured, and reduces droplet and overlaps cause mist because of diffusion
Drip the calculating error of density；(2) this utility model obtains the deposition of droplet by detection increased resistance value analysis.
Accompanying drawing explanation
Fig. 1 is this utility model structure front view.
Fig. 2 is this utility model structure upward view.
Detailed description of the invention
Below in conjunction with specific embodiments and the drawings, the utility model is described in further detail, but following embodiment is only this practicality newly
The preferred embodiment of type, and not all.Based on the embodiment in embodiment, those skilled in the art are not making creativeness
Other embodiments obtained on the premise of work, broadly fall into protection domain of the present utility model.
As it is shown in figure 1, this utility model mist droplet deposition sensor, including humiceram and the electrode 4 of connection humiceram, its
He all uses existing components and parts by parts, and the accompanying drawing 1 of the patent documentation that can refer to CN204594846U assembles.Described wet
Quick pottery is made up of the octadecylsilane decorative layer in base layer 1 and base layer front.
Base layer 1 is the MgCr of laminated structure2O4-TiO2Being humiceram, thickness is 2mm, and the porosity is 60%.
Octadecylsilane decorative layer is thin film coating, and thickness is 30 μm, is made up of upper and lower layer, and upper strata is nano-scale layers 2,
Thickness is 300nm, and lower floor is micron order layer 3, and thickness is 29.7 μm.Octadecyl decorative layer is the inspection of mist droplet deposition sensor
Survey face, when mist droplet deposition is in outermost nano-scale layers, contact angle reaches about 95 °, and aviation spray medicine mist droplet particle size is typically 700
Within Wei meter, porous matrix layer quickly draws droplet, and the dyestuff dissolved in medicinal liquid leaves mist on octadecylsilane decorative layer surface
Drip deposition vestige.
As in figure 2 it is shown, electrode 4 is ruthenic oxide electrode, burning the back side spreading on base layer 1, positive and negative electrode is covered each by base
The two ends at the body layer back side, then derive lead-in wire 5 connection measuring circuit (not indicating figure) from electrode, the resistance change recorded characterizes
The humiceram absorbtivity to droplet.
In actual applications, the aviation spray medicine inspection survey card that mist droplet deposition sensor of the present utility model replacement is traditional is arranged on droplet and adopts
On collection band, after unmanned plane sprays medicinal liquid, camera take the mist droplet deposition vestige that mist droplet deposition sensor surface stays, analyze
Image draws the droplet information such as droplet mean diameter, droplet density, Spraying coverage and distribution consistency degree；Analyze resistance value simultaneously
The amount of liquid medicine penetrated in humiceram is weighed in change.
Claims (7)
1. a mist droplet deposition sensor, including humiceram and the electrode of connection humiceram, it is characterised in that described wet sensitive
Pottery is made up of the organosilan decorative layer on base layer and surface.
2. mist droplet deposition sensor as claimed in claim 1, it is characterised in that the thickness of described base layer is 2～3mm,
The porosity is 50～60%.
3. mist droplet deposition sensor as claimed in claim 1, it is characterised in that the thickness of described organosilan decorative layer is
20～30 μm.
4. mist droplet deposition sensor as claimed in claim 1, it is characterised in that organosilan decorative layer is by upper and lower two-layer
Composition, upper strata is nano-scale layers, and lower floor is micron order layer.
5. mist droplet deposition sensor as claimed in claim 4, it is characterised in that upper thickness is 0.3～1 μm, lower thickness
It is 19～29.7 μm.
6. mist droplet deposition sensor as claimed in claim 1, it is characterised in that described electrode is ruthenic oxide electrode.
7. mist droplet deposition sensor as claimed in claim 1, it is characterised in that described organosilan decorative layer is located at base layer
Front, electrode connect base layer the back side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620102576.3U CN205483923U (en) | 2016-02-01 | 2016-02-01 | Droplet deposit sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620102576.3U CN205483923U (en) | 2016-02-01 | 2016-02-01 | Droplet deposit sensor |
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| Publication Number | Publication Date |
|---|---|
| CN205483923U true CN205483923U (en) | 2016-08-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201620102576.3U Expired - Fee Related CN205483923U (en) | 2016-02-01 | 2016-02-01 | Droplet deposit sensor |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106442235A (en) * | 2016-09-14 | 2017-02-22 | 华南农业大学 | Pesticide droplet deposition and evaporation detection device and method |
| CN107063949A (en) * | 2016-12-30 | 2017-08-18 | 北京农业智能装备技术研究中心 | Measure the methods, devices and systems of mist droplet deposition distribution situation |
| CN109470604A (en) * | 2018-11-02 | 2019-03-15 | 吉林大学 | A kind of droplet distribution detection sensor and detection method with bionic surface structure |
| CN110441352A (en) * | 2018-05-02 | 2019-11-12 | 杰克托农业机械股份有限公司 | Reusable droplet deposition Electronic Calibration equipment |
| CN115931415A (en) * | 2023-02-22 | 2023-04-07 | 埃森农机常州有限公司 | Spraying effect testing device of soybean and corn belt-shaped composite planting pesticide spraying plant protection machine |
| CN116297056A (en) * | 2023-05-24 | 2023-06-23 | 北京市农林科学院智能装备技术研究中心 | Mist deposition amount and evaporation rate detection device |
-
2016
- 2016-02-01 CN CN201620102576.3U patent/CN205483923U/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106442235A (en) * | 2016-09-14 | 2017-02-22 | 华南农业大学 | Pesticide droplet deposition and evaporation detection device and method |
| CN106442235B (en) * | 2016-09-14 | 2023-03-28 | 华南农业大学 | Pesticide droplet deposition and evaporation detection device and method |
| CN107063949A (en) * | 2016-12-30 | 2017-08-18 | 北京农业智能装备技术研究中心 | Measure the methods, devices and systems of mist droplet deposition distribution situation |
| CN107063949B (en) * | 2016-12-30 | 2020-04-10 | 北京农业智能装备技术研究中心 | Method, device and system for measuring droplet deposition distribution |
| CN110441352A (en) * | 2018-05-02 | 2019-11-12 | 杰克托农业机械股份有限公司 | Reusable droplet deposition Electronic Calibration equipment |
| CN109470604A (en) * | 2018-11-02 | 2019-03-15 | 吉林大学 | A kind of droplet distribution detection sensor and detection method with bionic surface structure |
| CN109470604B (en) * | 2018-11-02 | 2021-03-05 | 吉林大学 | Liquid drop distribution detection sensor with bionic surface structure and detection method |
| CN115931415A (en) * | 2023-02-22 | 2023-04-07 | 埃森农机常州有限公司 | Spraying effect testing device of soybean and corn belt-shaped composite planting pesticide spraying plant protection machine |
| CN116297056A (en) * | 2023-05-24 | 2023-06-23 | 北京市农林科学院智能装备技术研究中心 | Mist deposition amount and evaporation rate detection device |
| CN116297056B (en) * | 2023-05-24 | 2023-09-19 | 北京市农林科学院智能装备技术研究中心 | Mist deposition amount and evaporation rate detection device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160817 Termination date: 20210201 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |