Ultrasonic particulate sensing
US4217781A · kind A · utility
11Cited by
3References
5Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 18, 1979 |
| Grant date | Aug 19, 1980 |
| Priority date | — |
| Expiry date | Apr 18, 1999 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N29/032
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A pulse echo device for obtaining information about matter discontinuities in flowing fluid with a sidewall spaced from and surrounding the walls of a transducer situated with respect thereto in such a way that over half the waves radiating from the transducer walls strike the surrounding sidewall at angles less than 90.degree. thereby improving sensitivity and increasing signal-to-noise ratio.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.