Apparatus for particulate matter analysis

US7168292B2 · kind B2 · utility

Assignee

• The Regents of the University of California · US

Inventors

• Lara A. Gundel · Berkeley, US
• Michael G. Apte · Berkeley, US
• Anthony D. A. Hansen · Berkeley, US
• Douglas R. Black · Oakland, US

Key dates

• Filing date: May 14, 2004
• Grant date: Jan 30, 2007
• Expiry date: Jun 17, 2024

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T436/255
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

The apparatus described herein is a miniaturized system for particle exposure assessment (MSPEA) for the quantitative measurement and qualitative identification of particulate content in gases. The present invention utilizes a quartz crystal microbalance (QCM) or other mass-sensitive temperature compensated acoustic wave resonator for mass measurement. Detectors and probes and light sources are used in combination for the qualitative determination of particulate matter.