Gas analyzer utilizing cancellation of parallel microwave beams

Details Gas analyzer utilizing cancellation of parallel microwave beams Gas analyzer utilizing cancellation of parallel microwave beams

1994-06-30

1996-04-16

Williams, Hezron E.

Measuring and testing

Gas analysis

With compensation detail

250330, 324639, 324636, G01N 2200

Patent

active

055071732

ABSTRACT:
A method for analyzing a gaseous mixture by means of microwave absorption including the steps of: generating microwave energy of at least one frequency known to be absorbed by the component of interest of the gaseous mixture for the presence of one specific gas component; transmitting two beams of the microwave energy simultaneously to a measuring cell and to a reference cell, both cells containing none of the specific gas component of interest; recombining the microwave energy through the matching arms of a waveguide "magic" tee with an "H" arm and an "E" arm; adjusting the phase and amplitude of the reference or measuring beam signals of microwave energy until a null is detected at the "E" arm of the waveguide "magic" tee and all microwave energy is detected at the "H" arm of the microwave tee; allowing the measuring cell to fill with the gaseous mixture to be analyzed; correlating the energy detected at the "H" arm to the concentration of the gaseous component of interest, according to Beer's law. Also provided is an apparatus which may be used in conjunction with this method.

REFERENCES:
patent: 4390785 (1983-06-01), Faulhaber et al.
patent: 4894603 (1990-01-01), Berger et al.
patent: 4896097 (1990-01-01), Berger et al.
patent: 4952895 (1990-08-01), Quan
patent: 5057782 (1991-10-01), Brown et al.
patent: 5252827 (1993-10-01), Koga et al.

Affiliated with

Also associated with

Rating

Gas analyzer utilizing cancellation of parallel microwave beams does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Gas analyzer utilizing cancellation of parallel microwave beams, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Gas analyzer utilizing cancellation of parallel microwave beams will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-318134