Method and apparatus for detecting the level of a liquid in monitoring a dispense/aspirate process
US8689625B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 21, 2011 |
| Grant date | Apr 8, 2014 |
| Priority date | — |
| Expiry date | Sep 24, 2032 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2035/1025
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A device and a method are used for measuring the filling level of a fluid for monitoring a dispense/aspirate process in reaction vessels, including at least one cavity for dispensing and aspirating the fluid, where the cavity is provided with a filling level sensor whose signals, transmitted to an evaluation unit, are evaluated to determine the filling level, the at least one cavity is assigned a receiving body which is closed at the bottom and is separated from the cavity for receiving the fluid, the filling level sensor is at least one thermistor extending along the outside of a wall of the receiving body without coming in contact with the fluid, the evaluation unit evaluates the temperature influence of the thermistor in dispensing, aspirating and in retention of the fluid in the receiving body to detect the filling level, in this way the process monitoring in washing the reaction vessels is improved.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.