Capacitance detection in a droplet actuator
US10183292B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 14, 2015 |
| Grant date | Jan 22, 2019 |
| Priority date | — |
| Expiry date | Jan 22, 2037 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2203/00
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method, circuit and apparatus for detecting capacitance on a droplet actuator, inter alia, for determining the presence, partial presence or absence of a droplet at an electrode on a droplet actuator by: (a) providing a droplet actuator comprising: (i) a substrate comprising electrodes arranged on the substrate for conducting droplet operations on a surface of the substrate; (ii) a capacitance detection circuit for detecting capacitance at the droplet operations surface at one or more of the electrodes; (b) detecting capacitance at the droplet operations surface at one or more of the electrodes; and (c) determining from the capacitance the presence, partial presence or absence of a droplet at the droplet operations surface at the electrode.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.