Long path gas absorption cell

Details Long path gas absorption cell Long path gas absorption cell

1990-07-25

1992-06-30

Rosenberger, Richard A.

Optics: measuring and testing

Sample, specimen, or standard holder or support

Fluid containers

356440, G01N 2103

Patent

active

051257424

ABSTRACT:
The multi-pass, multi-reflection (MIR) cell used for spectrographic analysis, in a spectrophotometer, for example, is a right circular cylinder having flat end plates perpendicular to its axis. The interior of the cylinder is appropriately coated to reflect the radiation employed and small transparent windows are provided on axis at each end plate. Appropriate input and output tubing is provided. The cell is not much longer than it is in diameter and may have a diameter greater than its length, thus it is either drum or disk-shaped in contrast to the long light pipes of the prior art. The cell is preferably illuminated by a cone of radiation, such as that employed in multiple internal reflection instruments, for liquid analysis employing frustrated total internal reflection in circular rod. A spectrophotometer employing the cell is disclosed.

REFERENCES:
patent: 3287557 (1966-11-01), Bartz
patent: 3431424 (1969-03-01), Allen
patent: 3436159 (1969-04-01), Harrick et al.
patent: 3556659 (1971-01-01), Haws
patent: 3591287 (1971-07-01), Hannis
patent: 3728540 (1973-04-01), Todd et al.
patent: 3792272 (1974-02-01), Harte et al.
patent: 4726680 (1988-02-01), Allington
patent: 4818882 (1989-04-01), Nexo et al.

Affiliated with

Also associated with

Rating

Long path gas absorption cell does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Long path gas absorption cell, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Long path gas absorption cell will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1859231