Method, system and apparatus for the detection, characterization and classification of particles using photoacoustic and ultrasound techniques
US10175158B2 · kind B2 · utility
Inventors
Key dates
| Filing date | Mar 11, 2013 |
| Grant date | Jan 8, 2019 |
| Priority date | — |
| Expiry date | Jun 28, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2291/028
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Provided herein is a method to detect, characterize and classify a particle. A light source and an ultrasound transducer are controlled to irradiate the particle with light and an ultrasound pulse. A feature associated with the particle is determined by processing ultrasound data resulting from the particle being irradiated. The feature is compared to a reference to determine at least one property of the particle. According to some non-limiting implementations, the feature comprises a power spectrum of the particle. According to some non-limiting implementations, the ultrasound data is processed to determine characteristics in a range of about 100 MHz to about 1000 MHz of the power spectrum. According to some non-limiting implementations, the ultrasound pulse is in a range of about 100 MHz to about 1000 MHz. A computing device to detect, characterize and classify a particle is also provided.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.