Acoustic particulates density sensor

Details Acoustic particulates density sensor Acoustic particulates density sensor

2007-05-08

2007-05-08

Williams, Hezron (Department: 2856)

Measuring and testing

Gas analysis

By vibration

C073S028010

Reexamination Certificate

active

10948617

ABSTRACT:
A technique for determining particulate density in a fluid monitors the changes in the speed of sound. Since the speed of sound is intimately related to the composites of the air mixture and since the speed of sound of clean air at any temperature and humidity can be calculated exactly, it is possible to estimate the density of any foreign particulates in the air by observing changes in the speed of sound. Formulations are derived that correlate the change in the speed of sound of the air mixture to their density fluctuations, thus allowing people to estimate the mass density of foreign particulates under any temperature and humidity. Alternatively, the change in density of the air mixture can be detected, thereby indicating the presence of contaminants and a possible alarm, even if the contaminants are not yet identified.

REFERENCES:
patent: 3710615 (1973-01-01), Johnson et al.
patent: 4212190 (1980-07-01), Coover et al.
patent: 4262545 (1981-04-01), Lamarche et al.
patent: 4445389 (1984-05-01), Potzick et al.
patent: 4598593 (1986-07-01), Sheen et al.
patent: 4718269 (1988-01-01), Der Kinderen
patent: 4817413 (1989-04-01), Asano et al.
patent: 4930350 (1990-06-01), Bode et al.
patent: 4944185 (1990-07-01), Clark, Jr. et al.
patent: 5060514 (1991-10-01), Aylsworth
patent: 5271267 (1993-12-01), Baumoel
patent: 5313820 (1994-05-01), Aylsworth
patent: 5369998 (1994-12-01), Sowerby
patent: 5460047 (1995-10-01), Jacobson
patent: 5467637 (1995-11-01), Hasegawa et al.
patent: 5616872 (1997-04-01), O'Brien
patent: 5639972 (1997-06-01), Hastings et al.
patent: 5831150 (1998-11-01), Sowerby et al.
patent: 5886264 (1999-03-01), Hu et al.
patent: 5907099 (1999-05-01), Huang
patent: 5969237 (1999-10-01), Jones et al.
patent: 6109098 (2000-08-01), Dukhin et al.
patent: 6202494 (2001-03-01), Riebel et al.
patent: 6227040 (2001-05-01), Hastings et al.
patent: 6405603 (2002-06-01), Baumoel
patent: 6435030 (2002-08-01), Gysling et al.
patent: 6446494 (2002-09-01), Hastings et al.

Affiliated with

Also associated with

Rating

Acoustic particulates density sensor does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Acoustic particulates density sensor, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Acoustic particulates density sensor will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3804091