Methods and systems for detecting aerosol particles

US11996279B2 · kind B2 · utility

Assignee

• Zeteo Tech, Inc. · US

Inventors

• Michael McLoughlin · Sykesville, US
• Ross Kliegman · Sykesville, US
• Tim Cornish · Sykesville, US
• Vadym Berkout · Rockville, US
• Scott Ecelberger · Laurel, US
• Gonzalo R. Arce · Wilmington, US
• Kyle Regan · Cedar Grove, US

Key dates

• Filing date: Oct 21, 2021
• Grant date: May 28, 2024
• Expiry date: Oct 21, 2041

Classification

• Technology area (CPC G): Physics
• CPC primary: G01N2021/6497
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

Disclosed are systems are methods for identifying the composition of single aerosol particles, particularly that of bioaerosol particles. A continuous timing laser tightly coupled with a pulse ionization laser is used to index aerosol particles, measure particle properties, and trigger the ionization laser to fire when each particle enters the beam of the trigger laser. Ionized fragments and optionally photons produced when each particle is struck by the ionization laser are analyzed using one or more detectors including a TOF-MS detector and an optical detector. Individual single particle spectra are aligned and denoised prior to averaging.