Photometer including auxiliary indicator means
US4255053A · kind A · utility
16Cited by
1References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 8, 1978 |
| Grant date | Mar 10, 1981 |
| Priority date | — |
| Expiry date | May 8, 1998 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N21/643
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An apparatus for an optical measurement of the concentration of substances ncluding at least one monochromator means, one photometer means and one optometric means. A further reference indicator means is added to the indicator means. This further indicator means changes the measuring light and will not be changed by the concentration of the substance to be measured.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.