Title:
METHOD AND APPARATUS FOR MEASURING CHEMICAL CONCENTRATION IN A FLUID
Document Type and Number:
WIPO Patent Application WO2004083808
Kind Code:
A3
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.
Inventors:
CENTANNI MICHAEL A (US)
Application Number:
PCT/US2004/004753
Publication Date:
December 23, 2004
Filing Date:
February 18, 2004
Export Citation:
Assignee:
STERIS INC
CENTANNI MICHAEL A (US)
CENTANNI MICHAEL A (US)
International Classes:
G01N27/06; G01N27/22; (IPC1-7): G01R27/26
Foreign References:
| US3778706A | 1973-12-11 | |||
| US4219776A | 1980-08-26 |
Download PDF: