Method for sucking/determining liquid and pipetting device driven and controlled according to method
US6100094A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Mar 22, 1999 |
| Grant date | Aug 8, 2000 |
| Priority date | — |
| Expiry date | Mar 22, 2019 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T436/2575
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
In the present invention, a disposable tip or a tip of a cleaning system is attached to a lower edge section of a nozzle, and the nozzle detects a liquid level by receiving fluctuation of a light close to the disposable tip or to an opening section at a lower end of the tip in the cleaning system, for instance, a light reflected from the liquid surface. In the present invention, not only the liquid level is detected, but also a liquid is filled in the disposable tip or the tip of a cleaning system detachably attached to the nozzle, a light is passed through the liquid in the disposable tip or the tip of a cleaning system, and a change of a light amount of the sucked liquid is detected, so that, for instance, a suction rate of the liquid, transparency thereof, contaminated by bubbles therein, clogging and a state wherein water has been exhausted are determined.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.