Double window for protecting optical sensors from hazardous envi

Details Double window for protecting optical sensors from hazardous envi Double window for protecting optical sensors from hazardous envi

1995-04-20

1997-03-04

Gonzalez, Frank

Optics: measuring and testing

Optical pyrometers

356 44, 356440, G01J 548, G01N 2100

Patent

active

056085150

ABSTRACT:
An optical sensor system includes a housing having an open end; first and second windows situated in the housing; a fastener for situating the first window closer to the open end than the second window and permitting an air exchange between a sensing region and the second window; a hermetic seal between the second window and the housing; and an optical sensor situated between the second window and a wall of the housing such that the air exchange does not occur inside the optical sensor. The first and second windows can include materials selected from the group consisting of sapphire, quartz, and glass; the optical sensor to be protected can include silicon carbide; and the sensing region can include a combustion region. If the sensing region includes a combustion region, the first window is situated at a location in the housing sufficiently near enough to the combustion region to vaporize hydrocarbons in the vicinity of the first window, and the second window is situated a location sufficiently far enough from the combustion region so that the hermetic seal remains stable.

REFERENCES:
patent: 4657385 (1987-04-01), Pointer
patent: 5257496 (1993-11-01), Brown et al.
patent: 5303684 (1994-04-01), Brown et al.
patent: 5378642 (1995-01-01), Brown et al.
patent: 5394005 (1995-02-01), Brown et al.

Affiliated with

Also associated with

Rating

Double window for protecting optical sensors from hazardous envi does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Double window for protecting optical sensors from hazardous envi, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Double window for protecting optical sensors from hazardous envi will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2150183