Methods of detection with surface acoustic wave and apparati therefor
US4312228A · kind A · utility
145Cited by
3References
16Claims
0Family size
Inventor
Key dates
| Filing date | Jul 30, 1979 |
| Grant date | Jan 26, 1982 |
| Priority date | — |
| Expiry date | Jul 30, 1999 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2291/0421
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The invention is in the monitoring of physical parameters relating to various fluids and polymers by contacting same with the surface of a piezoelectric material unit through which is passing a surface acoustic wave, and measuring the alteration of that wave as an indication of these parameters. The invention is also in apparati for monitoring certain of said parameters.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.