Method and apparatus using laser radiation for generating and measuring gas bubbles
US4627726A · kind A · utility
5Cited by
3References
7Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jun 17, 1985 |
| Grant date | Dec 9, 1986 |
| Priority date | — |
| Expiry date | Jun 17, 2005 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2015/0011
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A non-intrusive method and apparatus for performing qualitative analysis of a liquid disposed within a container transparent to laser radiation comprises a first laser focused at a selected point within the liquid to produce or generate bubbles emanating from that location and a laser Doppler velocimeter which is intercepted by the rising bubbles to produce an output signal indicating both bubble size and velocity, as indication of liquid quality.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.