Pipetting device, fluid processing system and method for operating a fluid processing system
US11161108B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jul 21, 2017 |
| Grant date | Nov 2, 2021 |
| Priority date | — |
| Expiry date | Jul 19, 2038 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2035/1034
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A pipetting device having a lube has an opening al one end for suctioning or discharging a sample fluid and can be operatively connected to a pressure generation device at the other end, a first electrode is formed on the pipetting device and forms a measuring capacitor together with a second electrode formed by at least one part of the sample fluid that can be received in the tube and that measuring capacitor is operatively connected to a measuring unit, and the measuring unit is designed to determine a volume of the suctioned or discharged sample fluid according to the capacity of the measuring capacitor, as well as having a first electrical contact that is designed to create an electrical connection with the working fluid, the first electrical contact can be electrically connected to the measuring unit via a low-resistance converter circuit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.