Method and apparatus for measuring the composition of a zinc phosphate compound
US5090806A · kind A · utility
2Cited by
1References
2Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Oct 23, 1989 |
| Grant date | Feb 25, 1992 |
| Priority date | — |
| Expiry date | Oct 23, 2009 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N21/65
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method and apparatus (66, 72, 74) is disclosed which allows for the measurement of a concentration of hopeite and phosphophyllite contained within a zinc phosphate coating material (64). Specifically, the method employs Raman spectroscopy and measures the aforementioned concentration in an on-line and non-contact manner.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.