State-variable control system
US6589791B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | May 22, 2000 |
| Grant date | Jul 8, 2003 |
| Priority date | — |
| Expiry date | May 22, 2020 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T436/2575
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The invention relates to a state-variable feedback control system for monitoring and optimally controlling the operation of a microfluidic aspirate dispense-system. A steady state operating pressure is determined from the fluid, flow and/or operational characteristics of the system. Measurements from one or more pressure sensors are part of the control strategy to derive information for active feedback control and/or to achieve the desired operating pressure. Advantageously, the control system adds to the versatility of the aspirate-dispense system, for example, by permitting rapid dispensing of drops of different size. The control system also desirably facilitates efficient, repeatable and accurate performance and reduces wastage of valuable reagents or fluid.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.