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US-9841076-B2 · Dec 12, 2017 · US
Device for measuring a fluid meniscus
US9109876B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9109876-B2 |
| Application number | US-200913126035-A |
| Country | US |
| Kind code | B2 |
| Filing date | Oct 27, 2009 |
| Priority date | Nov 3, 2008 |
| Publication date | Aug 18, 2015 |
| Grant date | Aug 18, 2015 |
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- Title
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Abstract
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A device for measuring a geometry of a fluid meniscus includes a fluid chamber storing a first electrically conductive fluid and a second electrically insulating fluid. The fluids are mutually immiscible and define a fluid meniscus in between them. The device further includes a main electrowetting electrode and auxiliary electrowetting electrodes for controlling the geometry of the fluid meniscus. A voltage source provides a voltage between the main electrowetting electrode and the auxiliary electrowetting electrodes and a measurement circuit separately measures capacitances between the main electrowetting electrode and at least two of the auxiliary electrowetting electrodes. The measurement circuit includes a multiplexer for demodulating a signal indicative for the capacitances.
First claim
Opening claim text (preview).
The invention claimed is: 1. A device for measuring a geometry of a fluid meniscus, comprising: a fluid chamber having a wall and comprising electrically conductive and electrically insulating fluids mutually immiscible and in contact with each other over the fluid meniscus, the wall and the fluid meniscus forming a contact angle; a main electrowetting electrode in a main plane and a plurality of auxiliary electrowetting electrodes partially surrounding the fluid chamber in resp…
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- G01B7/28Primary
Physics · mapped topic
Physics · mapped topic
Physics · mapped topic
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- What does patent US9109876B2 cover?
- A device for measuring a geometry of a fluid meniscus includes a fluid chamber storing a first electrically conductive fluid and a second electrically insulating fluid. The fluids are mutually immiscible and define a fluid meniscus in between them. The device further includes a main electrowetting electrode and auxiliary electrowetting electrodes for controlling the geometry of the fluid menisc…
- Who is the assignee on this patent?
- De Boer Bart Michiel, De Hoog Thomas Jan, Jansen Theodorus Petrus Henricus Gerardus, and 1 more
- What technology area does this patent fall under?
- Primary CPC classification G01B7/28. Mapped technology areas include Physics.
- When was this patent published?
- Publication date Tue Aug 18 2015 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).