GB2354831A - Contact angle measuring apparatus - Google Patents

Contact angle measuring apparatus

Info

Publication number
GB2354831A
GB2354831A GB0031412A GB0031412A GB2354831A GB 2354831 A GB2354831 A GB 2354831A GB 0031412 A GB0031412 A GB 0031412A GB 0031412 A GB0031412 A GB 0031412A GB 2354831 A GB2354831 A GB 2354831A
Authority
GB
United Kingdom
Prior art keywords
measuring apparatus
contact angle
angle measuring
monocular
drop
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
Application number
GB0031412A
Other versions
GB2354831B (en
GB0031412D0 (en
Inventor
Anthony Maddison
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of GB0031412D0 publication Critical patent/GB0031412D0/en
Publication of GB2354831A publication Critical patent/GB2354831A/en
Application granted granted Critical
Publication of GB2354831B publication Critical patent/GB2354831B/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N13/00—Investigating surface or boundary effects, e.g. wetting power; Investigating diffusion effects; Analysing materials by determining surface, boundary, or diffusion effects
    • G01N13/02—Investigating surface tension of liquids
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
    • G01N21/55—Specular reflectivity
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N13/00—Investigating surface or boundary effects, e.g. wetting power; Investigating diffusion effects; Analysing materials by determining surface, boundary, or diffusion effects
    • G01N13/02—Investigating surface tension of liquids
    • G01N2013/0208—Investigating surface tension of liquids by measuring contact angle

Landscapes

  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Length Measuring Devices By Optical Means (AREA)

Abstract

Apparatus for measuring the angle of contact between a drop of liquid (16) and the surface of a specimen (16) has a light source (10) in the form of a high intensity LED which projects light on to the drop (16) and identifying means in the form of a monocular (8) for observing the light reflected from the drop (16). The monocular (8) establishes a position to which no light is reflected in terms of the angle of inclination of the optical axis of the monocular with respect to the vertical.
GB0031412A 1998-06-26 1999-06-25 Contact angle measuring apparatus Expired - Fee Related GB2354831B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GBGB9813717.7A GB9813717D0 (en) 1998-06-26 1998-06-26 Contact angle goniometer
PCT/GB1999/002001 WO2000000814A1 (en) 1998-06-26 1999-06-25 Contact angle measuring apparatus

Publications (3)

Publication Number Publication Date
GB0031412D0 GB0031412D0 (en) 2001-02-07
GB2354831A true GB2354831A (en) 2001-04-04
GB2354831B GB2354831B (en) 2002-04-10

Family

ID=10834363

Family Applications (2)

Application Number Title Priority Date Filing Date
GBGB9813717.7A Ceased GB9813717D0 (en) 1998-06-26 1998-06-26 Contact angle goniometer
GB0031412A Expired - Fee Related GB2354831B (en) 1998-06-26 1999-06-25 Contact angle measuring apparatus

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GBGB9813717.7A Ceased GB9813717D0 (en) 1998-06-26 1998-06-26 Contact angle goniometer

Country Status (3)

Country Link
AU (1) AU4521999A (en)
GB (2) GB9813717D0 (en)
WO (1) WO2000000814A1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10207282A1 (en) * 2002-02-21 2003-09-11 Infineon Technologies Ag Indirect measurement of the surface contact angle of liquids
DE102005014415B3 (en) * 2005-03-24 2007-03-22 Isra Vision Systems Ag Apparatus and method for inspecting a curved surface
DE102014000419A1 (en) 2014-01-17 2015-07-23 Technische Universität Kaiserslautern Apparatus and method for determining the contact angle of a liquid or liquid-filled body

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2053390A1 (en) * 1970-10-30 1972-05-04 Deutsche Forschungsgesellschaft für Druck und Reproduktionstechnik e.V., 8000 München Method for determining the wettability of a surface
JPS6085353A (en) * 1983-10-17 1985-05-14 Fuji Photo Film Co Ltd Contact angle measuring system
DE3808860A1 (en) * 1988-03-17 1989-10-05 Bayer Ag Method for automatically measuring surface tension or interfacial tension in order to optimise physical processes at the interfaces
US5080484A (en) * 1988-04-29 1992-01-14 Texas Instruments Deutschland Gmbh Method of measuring the contact angle of wetting liquid on a solid surface
DE4102990A1 (en) * 1991-02-01 1992-08-13 Werner Wolfrum Measuring edge angle of liquid drops on specimen with smooth or structured surface - by moving reflection surface section along boundary between drop and material and evaluating beam geometry
DE19845867A1 (en) * 1997-10-06 1999-07-22 Inst Polymerforschung Dresden Surface tension measurement and process equipment for use with polymer melts

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2053390A1 (en) * 1970-10-30 1972-05-04 Deutsche Forschungsgesellschaft für Druck und Reproduktionstechnik e.V., 8000 München Method for determining the wettability of a surface
JPS6085353A (en) * 1983-10-17 1985-05-14 Fuji Photo Film Co Ltd Contact angle measuring system
DE3808860A1 (en) * 1988-03-17 1989-10-05 Bayer Ag Method for automatically measuring surface tension or interfacial tension in order to optimise physical processes at the interfaces
US5080484A (en) * 1988-04-29 1992-01-14 Texas Instruments Deutschland Gmbh Method of measuring the contact angle of wetting liquid on a solid surface
DE4102990A1 (en) * 1991-02-01 1992-08-13 Werner Wolfrum Measuring edge angle of liquid drops on specimen with smooth or structured surface - by moving reflection surface section along boundary between drop and material and evaluating beam geometry
DE19845867A1 (en) * 1997-10-06 1999-07-22 Inst Polymerforschung Dresden Surface tension measurement and process equipment for use with polymer melts

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PAT ABS JPN vol.009,no.227(P-388)13/09/85 & JP60085353 A(FUJI SHASHIN FILM KK),14/05/85 *

Also Published As

Publication number Publication date
GB9813717D0 (en) 1998-08-26
GB2354831B (en) 2002-04-10
GB0031412D0 (en) 2001-02-07
AU4521999A (en) 2000-01-17
WO2000000814A1 (en) 2000-01-06

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20030625