Method and apparatus for the measurement of pollutants in liquids
US5630987A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jan 24, 1995 |
| Grant date | May 20, 1997 |
| Priority date | — |
| Expiry date | Jan 24, 2015 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T436/255
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An apparatus for measuring the concentration of a contaminant in a fluid includes a measuring chamber in a fluid path, a first source of optical radiation of a predetermined wavelength adapted to direct the radiation through the measuring chamber, and a detector for detecting the radiation after passage through the measuring chamber. The fluid path also has a pump provided to urge a test fluid from a fluid source to the measuring chamber, the test fluid being subjected to containing the contaminant, a fluid processor to process the fluid to change an optical effect of the contaminant, an acid wash to inhibit the effect of precipitation of cations within the fluid path, a fluid bypass to bypass the fluid processor and a valve to alternately direct the fluid to the fluid processor and the bypass.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.