Method and apparatus for monitoring water quality
US5795996A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 30, 1997 |
| Grant date | Aug 18, 1998 |
| Priority date | — |
| Expiry date | Jun 30, 2017 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N33/1853
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method for monitoring water quality including deriving calcium hardness and M alkalinity from the linear functional relation between calcium hardness and specific conductivity, and that between log value of M alkalinity and pH value, simplifying the temperature curve into a formula, and calculating directly the saturation index. A multipurpose and inexpensive automatic water quality monitoring apparatus that can be adapted for use in cooling towers, swimming pools, and boilers may be made from a combination of an conductivity meter, pH meter, and oxidation reduction potential meter commonly used in testing, and a simple algorithm of a central processing unit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.