Apparatus and method for verifying the volume of liquid dispensed by a liquid-dispensing mechanism
US7114368B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 8, 2003 |
| Grant date | Oct 3, 2006 |
| Priority date | — |
| Expiry date | Jul 4, 2023 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2035/00217
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An apparatus for improving the procedure for quantifying the volume of liquid dispensed by a liquid-dispensing mechanism of an analytical instrument. The apparatus of this invention comprises (a) at least one weigh cup; (b) at least one standard mass; (c) at least one transducer assembly to convert a value of weight to an electrical response; and (d) at least one electronic circuit for converting the electrical response to a measurement of volume. This invention provides a method for calibrating readings of the volume of liquid dispensed by a liquid-dispensing mechanism of an analytical instruments so that absolute measurements of the volume of liquid dispensed can be obtained.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.