Active acoustic method for predicting properties of process fluids comprising solid particles or gas/liquid volumes based on their size distribution and concentration
US9772311B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 27, 2014 |
| Grant date | Sep 26, 2017 |
| Priority date | — |
| Expiry date | Apr 5, 2035 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2291/02872
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
In the present invention a controllable acoustic source (14) in connection with the process fluid (10) emits a signal (18) into the fluid (10), consisting of a suspension of particles (12), being volumes of gas, liquid or solid phase. The controllable acoustic signal (18) is allowed to interact, with the particles (12), and the acoustic (pressure) signals (22) resulting from such an interaction is measured preferably via a sensor (24). A spectrum is measured. The spectrum is used to predict properties, content and/or size of the particles (12) and/or used to control a process in which the process fluid (10) participates. The prediction is performed in the view of the control of the acoustic source (14). The used acoustic signal has preferably a frequency below 20 kHz.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.