Measuring and testing – Gas analysis – By vibration
Reexamination Certificate
2008-07-15
2008-07-15
Williams, Hezron E. (Department: 2856)
Measuring and testing
Gas analysis
By vibration
C073S024020
Reexamination Certificate
active
07398672
ABSTRACT:
A method for analyzing a target analyte gas concentration using a photoacoustic spectroscopy cell comprising:i) a modulatable light source which provides optical radiation at an absorption wavelength of a target analyte;ii) a resonant acoustic chamber for containing said analyte;iii) a microphone positioned within said chamber whereby the acoustic reactance of the microphone is substantially equal but opposite in value to the acoustic reactance of the chamber at a selected cell resonance frequency.
REFERENCES:
patent: 4457162 (1984-07-01), Rush et al.
patent: 5815277 (1998-09-01), Zare et al.
patent: 6662627 (2003-12-01), Arnott et al.
patent: 6975402 (2005-12-01), Bisson et al.
patent: 7263871 (2007-09-01), Selker et al.
patent: 2006/0123884 (2006-06-01), Selker et al.
Miklos et al., Review of Scientific Instruments, vol. 72 (4), pp. 1937-1955 (Apr. 2001).
Firebaugh et al., J. Microelectromechanical Systems, vol. 10 (2), pp. 232-237 (Jun. 2001).
Bijnen et al., Review of Scientific Instruments, AIP, vol. 67 (8), pp. 2914-2923 (Aug. 1996).
Zeninari et al., Infrared Physics & Technology, vol. 40, pp. 1-23 (1999).
Burkard Herbert
Finesse Solutions LLC.
Fitzgerald John
Williams Hezron E.
LandOfFree
System and method for gas analysis using photoacoustic... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with System and method for gas analysis using photoacoustic..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and System and method for gas analysis using photoacoustic... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2747122