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公开(公告)号：US12007265B2
公开(公告)日：2024-06-11
申请号：US17676553
申请日：2022-02-21
IPC分类号： G01F22/02 , B41J2/21 , G01B11/06 , G01B11/08 , G01B11/255 , G01F22/00 , G01F25/00 , G01N13/02 , G01N21/85 , G01N35/10 , G06T7/62
CPC分类号： G01F22/02 , G01B11/08 , G01B11/255 , G01N21/8507 , G06T7/62 , B41J2/2142 , G01B11/0608 , G01F22/00 , G01F25/0084 , G01N2013/0208 , G01N35/1016
摘要： A method and test apparatus determines a volume of a droplet of liquid. The test apparatus deposits a drop of liquid to be measured on a surface that provides a known contact angle with the liquid under the deposition conditions used, thereby establishing one of: (i) an advancing, (ii) a receding, and (iii) an intermediate contact angle. The test apparatus images the drop. The test apparatus measures a dimension of height or diameter of the drop. In one embodiment, the test apparatus calculates a volume of the drop of liquid from the relationship of the contact angle to one or more parameters selected from the maximum height, the diameter of the contact patch, the radius of curvature, or the cross sectional area of the drop.
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公开(公告)号：US20200080880A1
公开(公告)日：2020-03-12
申请号：US16611213
申请日：2018-05-04
IPC分类号： G01F22/02 , G01B11/08 , G01B11/255 , G06T7/62
摘要： A method and test apparatus determines a volume of a droplet of liquid. The test apparatus deposits a drop of liquid to be measured on a surface that provides a known contact angle with the liquid under the deposition conditions used, thereby establishing one of: (i) an advancing, (ii) a receding, and (iii) an intermediate contact angle. The test apparatus images the drop. The test apparatus measures a dimension of height or diameter of the drop. In one embodiment, the test apparatus calculates a volume of the drop of liquid from the relationship of the contact angle to one or more parameters selected from the maximum height, the diameter of the contact patch, the radius of curvature, or the cross sectional area of the drop.
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公开(公告)号：US11255715B2
公开(公告)日：2022-02-22
申请号：US16517501
申请日：2019-07-19
发明人： Richard David Koval , Guyrandy Jean-Gilles , Andrew Davison Gilpin , Michael Anthony Geren , Raymond Giles Dillingham , Timothy James Barry
摘要： A method and apparatus for collecting sample data from a liquid droplet dispensation system is provided.
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公开(公告)号：US20170307536A1
公开(公告)日：2017-10-26
申请号：US15521374
申请日：2015-10-26
发明人： Raymond Giles Dillingham , Brietta Rose Oakley , Lucas Hale Dillingham , Andrew Davis Gilpin , Frances Charles Ganance , Timothy James Barry , Harun Mohammed
摘要： A method and testing apparatus determine receding contact angles of liquids on surfaces by depositing a liquid in a manner whereby the volume of the drop is increased through stepwise addition of smaller drops. Each increment of volume growth causes the perimeter of the drop to advance across the surface. The incremental volume elements impart sufficient energy to the growing drop such that the drop perimeter expands beyond its equilibrium diameter for that volume. The drop perimeter tends to contract between volume additions as the excess energy is dissipated. The method and testing apparatus determine the receding contact angle between the incremental volume additions.
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公开(公告)号：US10380754B2
公开(公告)日：2019-08-13
申请号：US15495272
申请日：2017-04-24
摘要： A testing device determines the presence of substances on a surface using a sensor positioned at a known vantage point to the surface. A liquid dispenser deposits a liquid drop on the surface. A data generator after a first time interval for allowing the liquid drop to stabilize on the surface detects, via the sensor, a geometric characteristic of the liquid drop that is related to a first equilibrium contact angle of the liquid drop to the surface. The data generator after a second time interval detects via the sensor the geometric characteristic of the liquid drop that is related to a second equilibrium contact angle. The data generator compares the first and second contact angle and determines a contamination on the surface that is soluble in the liquid drop in response to a change between the first and second contact angles.
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公开(公告)号：US20220170776A1
公开(公告)日：2022-06-02
申请号：US17673913
申请日：2022-02-17
发明人： Richard David Koval , Guyrandy Jean-Gilles , Andrew Davison Gilpin , Michael Anthony Geren , Raymond Giles Dillingham , Timothy James Barry
摘要： A method for operating a liquid droplet dispensation system is provided. The method includes dispensing a first droplet of a first fluid sample from a reservoir at a first pressure, measuring a first velocity of the first droplet, and measuring a first mass of the first droplet. The method further includes dispensing a second droplet of the first fluid sample from the reservoir at a second pressure, measuring a second velocity of the second droplet, and measuring a second mass of the second droplet. The method further includes dispensing a droplet of a second fluid sample from the reservoir at a third pressure, measuring a third velocity of the droplet of the second fluid sample, and determining a mass of the droplet of the second fluid sample based upon the first, second and third velocities, the first, second and third pressures, and the first and second masses.
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公开(公告)号：US10801966B2
公开(公告)日：2020-10-13
申请号：US15521374
申请日：2015-10-26
发明人： Raymond Giles Dillingham , Brietta Rose Oakley , Lucas Hale Dillingham , Andrew Davis Gilpin , Francis Charles Ganance , Timothy James Barry , Harun Mohammed
摘要： A method and testing apparatus determine receding contact angles of liquids on surfaces by depositing a liquid in a manner whereby the volume of the drop is increased through stepwise addition of smaller drops. Each increment of volume growth causes the perimeter of the drop to advance across the surface. The incremental volume elements impart sufficient energy to the growing drop such that the drop perimeter expands beyond its equilibrium diameter for that volume. The drop perimeter tends to contract between volume additions as the excess energy is dissipated. The method and testing apparatus determine the receding contact angle between the incremental volume additions.
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公开(公告)号：US20170228882A1
公开(公告)日：2017-08-10
申请号：US15495272
申请日：2017-04-24
CPC分类号： G06T7/60 , G01B11/02 , G01B11/08 , G01B11/24 , G01N13/00 , G01N13/02 , G01N21/94 , G01N2013/0208 , G01N2021/945
摘要： A testing device determines the presence of substances on a surface using a sensor positioned at a known vantage point to the surface. A liquid dispenser deposits a liquid drop on the surface. A data generator after a first time interval for allowing the liquid drop to stabilize on the surface detects, via the sensor, a geometric characteristic of the liquid drop that is related to a first equilibrium contact angle of the liquid drop to the surface. The data generator after a second time interval detects via the sensor the geometric characteristic of the liquid drop that is related to a second equilibrium contact angle. The data generator compares the first and second contact angle and determines a contamination on the surface that is soluble in the liquid drop in response to a change between the first and second contact angles.
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