Surface contamination sensor
US5062707A · kind A · utility
3Cited by
1References
23Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 6, 1990 |
| Grant date | Nov 5, 1991 |
| Priority date | — |
| Expiry date | Nov 6, 2010 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2021/625
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An ambient surface contamination sensor including a source for supplying gas, which is energized before it reaches the surface being sensed so that it is capable of transferring energy to the contaminants on the surface or vapor originating therefrom. The sensor then detects the optical emission from the gas passed over the surface within a selected wavelength band characteristic of the presence on the surface of the contaminant, and indicates the presence of the contaminant on the surface when such an emission is detected.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.