Method and a device for detecting changes in a surface state and for monitoring the surface state
US4916317A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 6, 1988 |
| Grant date | Apr 10, 1990 |
| Priority date | — |
| Expiry date | Oct 6, 2008 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N21/57
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method of detecting changes in a surface state and of monitoring said surface state, in particular for a body whose surface is at a given temperature and is in contact with a flowing liquid at a given temperature which may optionally be different from the temperature of said surface, wherein a reference metal body is placed in said liquid, said body having a surface at a temperature which is adjustable independently of the temperature of said liquid, and said body acting as an electrode which is optionally raised to an adjustable potential, and the surface state of said body is detected by measuring the intensity of light radiation reflected from at least one mirror-forming portion of the surface of the reference body.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.