Method and apparatus for measuring chemical concentration in a fluid
US6844742B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Mar 14, 2003 |
| Grant date | Jan 18, 2005 |
| Priority date | — |
| Expiry date | Mar 14, 2023 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N27/221
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A chemical concentration detecting system for determining the relative concentrations of a multiple component chemical solution. The multi-component solution is preferably comprised of an antimicrobial chemical and a base fluid that acts as a diluent for the antimicrobial chemical, or as a vehicle or carrier for the antimicrobial chemical. A capacitor is exposed to the decontamination solution, wherein the decontamination solution acts as the dielectric between the plates of the capacitor. Permittivity of the dielectric is affected by the relative concentrations of the components, and thus a measurement of the capacitance is used to determine the relative concentration levels of the components in the solution.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.