CN109709001A - Optical based contact angle measurement system - Google Patents
Optical based contact angle measurement system Download PDFInfo
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- CN109709001A CN109709001A CN201711038782.8A CN201711038782A CN109709001A CN 109709001 A CN109709001 A CN 109709001A CN 201711038782 A CN201711038782 A CN 201711038782A CN 109709001 A CN109709001 A CN 109709001A
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- darkroom
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- angle measurement
- light
- lamp box
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- 230000003287 optical effect Effects 0.000 title claims abstract description 50
- 238000005259 measurement Methods 0.000 title claims abstract description 41
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- 238000000034 method Methods 0.000 claims description 5
- 230000008569 process Effects 0.000 claims description 4
- 239000007788 liquid Substances 0.000 abstract description 9
- 230000000694 effects Effects 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000002452 interceptive effect Effects 0.000 description 2
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- 238000012545 processing Methods 0.000 description 2
- 239000004925 Acrylic resin Substances 0.000 description 1
- 229920000178 Acrylic resin Polymers 0.000 description 1
- 238000000149 argon plasma sintering Methods 0.000 description 1
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- 230000001678 irradiating effect Effects 0.000 description 1
- 239000011344 liquid material Substances 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
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- Investigating Or Analysing Materials By Optical Means (AREA)
Abstract
The present invention relates to one kind to be based on optical Contact-angle measurement system, including lamp box (for installing background light source) (10), background light source (20), even mating plate (30), the aperture (40) of adjustable size, optical filter (50), microsyringe (60), automatic liftable sample stage (70), image collecting device (80), darkroom (90).Lamp box is placed in one end of entire measuring system, the background light source that can arbitrarily adjust light intensity and wavelength is placed in lamp box, to eliminate influence of the light of different wave length to liquid drop boundary diffraction.Darkroom is placed in the other end of entire measuring system, including microsyringe, automatic liftable sample stage and image collecting device.By even mating plate, two groups of apertures and filter set at optics apply and be partially disposed between lamp box and darkroom, the device can convert directional light for the scattering light that light source issues, and effectively reduce since scattering light irradiation generates error of the fuzzy liquid drop boundary to generate to Contact-angle measurement.
Description
Technical field
Patent disclosure is a kind of to be based on optical Contact-angle measurement system, and this system is for improving due to optical wavelength and light
Scattering process the fuzzy deficiency to influence Contact-angle measurement precision is caused on liquid drop boundary, have good improvement light intensity,
Optical wavelength and the performance for converting scattering light to directional light, can effectively improve Contact-angle measurement precision, this patent is related to
Technical scope be widely portable to various complex environments, it is even also very applicable under complicated luminous environment, ensure that
The high-precision of Contact-angle measurement has high promotional value.
Background technique
Presently commercially available contact angle measurement is applied to the contact angle size of measurement liquid and solid material surface, is applied to
Every field plays highly important effect in the research in the fields such as mining, material protection, medicine, semiconductor, petroleum,
Existing contact angle measurement is generally open, is easy to be influenced by complex light in environment when measuring contact angle, make
It is fuzzy to obtain liquid drop boundary, generates error when to calculating through row contact angle, influences measurement accuracy.
When measuring under environment indoors, light source includes indoor light and sunlight, these complicated scattering light are in liquid
Drop boundary occurs interfering or diffraction phenomena, so that liquid drop boundary soft edge, at computer is through row Image Acquisition, image
The liquid drop boundary profile obscured during reason will affect the judgement of pixel, when requiring high-precision Contact-angle measurement, pixel
The error in judgement of point generates when can directly result in Contact-angle measurement and calculates error.
Summary of the invention
The main purpose of the invention patent is the provision of one kind and is based on optical Contact-angle measurement system, existing to solve
Fuzzy liquid drop boundary is generated since complex light irradiates in technology, to lead to the problem of Contact-angle measurement error.
To achieve the goals above, the invention patent provides a kind of based on optical Contact-angle measurement system, comprising: lamp
Case, optical telescopic sleeve, darkroom, image collecting device are entirely connected based on optical Contact-angle measurement system by said sequence.
Further, light source is installed in lamp box, the light intensity of light source is adjustable, Color tunable section, that is, light source Wavelength tunable,
Can meet in measurement environment the needs of using different light intensity or different wavelengths of light.
Further, even mating plate, two groups of apertures (sequence is adjustable), optical filters are successively installed in order in optical telescopic sleeve.It is even
The effect of mating plate can make light source by uniform display after even mating plate, and the intensity for irradiating light is in control range.Two groups of light
The size in the central circular aperture of circle is adjusted respectively, changes light-inletting quantity, so that light is softer.Furthermore it is spaced between two groups of apertures
A distance, the central circular aperture of two groups of apertures be adjusted to it is identical, by light source issue scattering light be converted into directional light.It filters
Piece is realized to the spectral region for making the light being radiated on tested drop after the optical device processing in optical telescopic sleeve
It adjusts.When the light of light source makes the light being radiated on tested drop be more suitable for surveying after the optical device processing in optical telescopic sleeve
Amount demand can reach clearly drop edge profile, reduce measurement error, improve the measurement accuracy of contact angle.
Further, sample stage can be dropped automatically by being equipped in darkroom, sample stage height, front and rear, left and right distance and inclination angle
It can be finely adjusted, to reach optimal measurement position, microsyringe is embedded at the top in darkroom, test solution is added dropwise
Drop.
Further, image collecting device includes Image Acquisition, image procossing, angle calculation, and image collecting device is
The process of computer software subsidiary, it is possible to provide high speed, accurate measurement result.
Further, image collecting device is embedded in darkroom, guarantees that darkroom is in dark in measurement process, removes and pass through optics set
Cylinder treated light the enters unexpected interference that any impurity light source is not present.
Further, optical Contact-angle measurement system, lamp box, optical telescopic sleeve, darkroom, image collector are entirely based on
It sets, four parts are completely embedded, and are converted into directional light from optical angle by light is scattered, are reduced the yin generated when light irradiates drop
Shadow eliminates the influence of interference and diffraction, has obtained clearer drop edge profile, improves the measurement essence of contact angle
Degree.
Using the technical solution of the invention patent, optical telescopic sleeve is wherein more important link, takes full advantage of even light
Piece, aperture and the respective characteristic of optical filter effectively convert directional light for the scattering light that light source issues, and have adjusted output
Spectrum, it is less since scattering light is radiated at the shade generated around tested drop, and interference or diffraction phenomena are eliminated, make
Available clearly drop edge profile after obtaining by Image Acquisition, image procossing, effectively improves the survey of contact angle
Accuracy of measurement.
Detailed description of the invention
The accompanying drawings constituting a part of this application is used to provide to further understand the invention patent, the present invention
The illustrative embodiments and their description of patent are used for the invention patent, do not constitute the improper restriction to the invention patent.
In the accompanying drawings:
Fig. 1 has gone out the structural schematic diagram of the embodiment of the Contact-angle measurement system of patent according to the present invention；
Fig. 2 shows the schematic front view of the Contact-angle measurement system of Fig. 1；
Fig. 3 shows the schematic top plan view of the Contact-angle measurement system of Fig. 1.
10, lamp box；20, light source；30, even mating plate；40 (41,42), aperture；50, optical filter；60, microsyringe；70,
Automatic liftable sample stage；80, image collecting device；90, darkroom.
Specific embodiment
It should be noted that under conditions of not conflicting, the characteristic in the application in embodiment and embodiment can be mutual
In conjunction in conjunction with the embodiments next below with reference to the accompanying drawings the present invention will be described in detail.
Referring to figures 1-3, it is based on optical Contact-angle measurement system, comprising: lamp box (installation light source), optical telescopic sleeve are (even
Mating plate, two groups of apertures, optical filters), darkroom (microsyringe, automatic liftable sample stage), image collecting device, four parts according to
Secondary installation, close to connect, when measurement, entire Contact-angle measurement system should be at horizontality.
Light intensity and optical wavelength adjustable white light LED area lighting source are installed, the light source is by 100 white lights in the lamp box
LED surrounds the circular array for 10 centimetres of diameter.Light source light-emitting efficiency is adjustable within the scope of 80-150 lumens/watt, passes through adjusting
The adjusting to white light LED area lighting source output intensity may be implemented in the input power of white light LED area lighting source, to obtain optimal
Measure luminous environment.
The optical telescopic sleeve is the intermediate portions of whole system, wherein being mounted with respectively includes even mating plate, aperture, optical filtering
The optical device of piece effectively can convert directional light for the scattering light that light source issues, and make light softer,
In even mating plate be 1.5 millimeters of thickness by acrylic resin even mating plate general in the industry.Aperture is 18 iris type adjustable apertures,
The size in central circular aperture is continuously adjusted in 0-8 cm range.At a distance of 10 centimetres between two apertures.Optical filter is to lead in the industry
In groups bandpass filter, polarizing filter (including 625-665nm feux rouges optical filter, 625-665nm green light optical filter,
625-665nm blue filter, 625-665nm yellow light optical filter, 625-665nm orange light optical filter), it adjusts optical filter and changes
The liquid drop boundaries that optical wavelength can effectively inhibit different test materials occur interfering and diffraction phenomena, reach from optical angle
To the purpose for improving Contact-angle measurement precision.
The above description is only a preferred embodiment of the present invention and oneself, be not intended to restrict the invention, for the skill of this field
For art personnel, the invention may be variously modified and varied.It is made any to repair within all the spirit and principles in the present invention
Change, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (6)
1. a kind of Contact-angle measurement system of optical treatment, comprising:
Lamp box (10) is for installing background light source (20), and wherein the light intensity and Color tunable of background light source, that is, can be changed background
The wavelength of light source.
Optical telescopic sleeve is made of, wherein aperture adjustable size even mating plate (30), two groups of apertures (40) and optical filter, is filtered
Piece is rotatable, only single direction light is allowed to pass through.
Darkroom (90) includes microsyringe (60), automatic liftable sample stage (70) and image collecting device (80).It is micro
Sample injector and image collecting device protrude into darkroom, and liftable sample stage is completely disposed in darkroom, and lamp box is respectively placed in darkroom
The both ends of whole system, by even mating plate, aperture and filter set at optical telescopic sleeve connect.
2. a kind of according to claim 1, the Contact-angle measurement system of optical treatment, it is characterised in that whole system can be divided into three
Point, it is that lamp box, optical telescopic sleeve part and darkroom, wherein lamp box and darkroom are respectively placed in whole system both ends and by light respectively
Learn sleeve connection.
3. according to claim 2, a kind of Contact-angle measurement system of optical treatment, it is characterised in that the lamp positioned at system one end
Case placed the background light source of adjustable light intensity and optical wavelength (color changeable) in lamp box.
4. according to claim 2, a kind of Contact-angle measurement system of optical treatment, it is characterised in that positioned at the dark of the system other end
Room, automatic liftable sample stage are located completely therein, and microsyringe and image collecting device embedded in darkroom and protrude into darkroom,
Guarantee to be in dark in darkroom always in measurement process.
5. according to claim 2, a kind of Contact-angle measurement system of optical treatment, it is characterised in that the automatic liftable in darkroom
Sample stage, can up and down adjustment, can front and back adjusting position, while also be adjusted sample stage inclination angle.
6. according to claim 2, a kind of Contact-angle measurement system of optical treatment, it is characterised in that the light between lamp box and darkroom
Learn sleeve, by even mating plate, two groups of apertures and filter set at, be sequentially followed successively by even mating plate, aperture (two groups), optical filter,
In two groups of aperture sizes it is adjustable and two groups of apertures can any reversing of position.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711038782.8A CN109709001A (en) | 2017-10-25 | 2017-10-25 | Optical based contact angle measurement system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711038782.8A CN109709001A (en) | 2017-10-25 | 2017-10-25 | Optical based contact angle measurement system |
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| Publication Number | Publication Date |
|---|---|
| CN109709001A true CN109709001A (en) | 2019-05-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711038782.8A Pending CN109709001A (en) | 2017-10-25 | 2017-10-25 | Optical based contact angle measurement system |
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| Country | Link |
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| CN (1) | CN109709001A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114324070A (en) * | 2021-12-10 | 2022-04-12 | 国网内蒙古东部电力有限公司电力科学研究院 | A kind of outdoor detection method, recording medium and system for hydrophobicity of surface of high-voltage casing umbrella skirt |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0850088A (en) * | 1994-08-09 | 1996-02-20 | Toyota Motor Corp | Contact angle measuring method |
| CN2629028Y (en) * | 2003-07-19 | 2004-07-28 | 华侨大学 | Liquid surface stress coefficient measuring instrument |
| DE102004038957B3 (en) * | 2004-08-04 | 2006-04-13 | Leibniz-Institut Für Polymerforschung Dresden E.V. | Surface phenomena at solid-liquid interfaces are measured both by interference spectrophotometry and electronic image recording of the variation in profile for a single liquid droplet |
| CN1865917A (en) * | 2006-05-18 | 2006-11-22 | 宋四海 | Measuring analyzer for dynamic characteristics of liquid surface and interface based on high speed image processing |
| US20080018909A1 (en) * | 2006-07-20 | 2008-01-24 | Canon Kabushiki Kaisha | Droplet shape measuring method and apparatus |
| CN101539502A (en) * | 2009-04-30 | 2009-09-23 | 清华大学 | Method for measuring liquid-drop contact angle on solid surface and device thereof |
| CN106501134A (en) * | 2016-12-27 | 2017-03-15 | 吴志远 | The accurate measurement method of low-angle contact angle |
| CN206057137U (en) * | 2016-08-28 | 2017-03-29 | 宁波新边界科学仪器有限公司 | Using sessile drop method all automatic measurement liquid surface or the device of interfacial tension |
| CN206114467U (en) * | 2016-09-19 | 2017-04-19 | 安徽理工大学 | But contact angle measurement device of many sample lifting formula objective tables |
-
2017
- 2017-10-25 CN CN201711038782.8A patent/CN109709001A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0850088A (en) * | 1994-08-09 | 1996-02-20 | Toyota Motor Corp | Contact angle measuring method |
| CN2629028Y (en) * | 2003-07-19 | 2004-07-28 | 华侨大学 | Liquid surface stress coefficient measuring instrument |
| DE102004038957B3 (en) * | 2004-08-04 | 2006-04-13 | Leibniz-Institut Für Polymerforschung Dresden E.V. | Surface phenomena at solid-liquid interfaces are measured both by interference spectrophotometry and electronic image recording of the variation in profile for a single liquid droplet |
| CN1865917A (en) * | 2006-05-18 | 2006-11-22 | 宋四海 | Measuring analyzer for dynamic characteristics of liquid surface and interface based on high speed image processing |
| US20080018909A1 (en) * | 2006-07-20 | 2008-01-24 | Canon Kabushiki Kaisha | Droplet shape measuring method and apparatus |
| CN101539502A (en) * | 2009-04-30 | 2009-09-23 | 清华大学 | Method for measuring liquid-drop contact angle on solid surface and device thereof |
| CN206057137U (en) * | 2016-08-28 | 2017-03-29 | 宁波新边界科学仪器有限公司 | Using sessile drop method all automatic measurement liquid surface or the device of interfacial tension |
| CN206114467U (en) * | 2016-09-19 | 2017-04-19 | 安徽理工大学 | But contact angle measurement device of many sample lifting formula objective tables |
| CN106501134A (en) * | 2016-12-27 | 2017-03-15 | 吴志远 | The accurate measurement method of low-angle contact angle |
Non-Patent Citations (1)
| Title |
|---|
| C. ALLAIN等: "A New Method for Contact-Angle Measurements of Sessile Drops", 《JOURNALOFCOLLOIDANDINTERFACESCIENCE》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114324070A (en) * | 2021-12-10 | 2022-04-12 | 国网内蒙古东部电力有限公司电力科学研究院 | A kind of outdoor detection method, recording medium and system for hydrophobicity of surface of high-voltage casing umbrella skirt |
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