Self-contained portable photoelectric gas measuring and warning

Details Self-contained portable photoelectric gas measuring and warning Self-contained portable photoelectric gas measuring and warning

1986-01-15

1987-11-17

Westin, Edward P.

Radiant energy

Photocells; circuits and apparatus

Optical or pre-photocell system

356442, G01N 2149

Patent

active

047076143

ABSTRACT:
A gas measuring and warning apparatus is disclosed having a testing tube through which the gas that is to be detected flows. The apparatus also has a photoelectric scanner for detecting the migrating reaction zone. The configuration of the apparatus is simplified and the resolution capacity is improved. This is achieved in that the photoelectric scanner includes an image forming lens system which forms an image of the length of the reaction zone on a photosensitive array of identical sensor elements, the reaction zone being illuminated by at least one light source. For emitting a measured signal, the evaluation circuit is controlled by the number of sensor elements that are located within the imaged length of the reaction zone.

REFERENCES:
patent: 3773424 (1973-11-01), Selgin
patent: 4084426 (1978-04-01), Gales
patent: 4123227 (1978-10-01), Heim et al.
patent: 4450722 (1984-05-01), Keyes IV et al.
patent: 4558947 (1985-12-01), Wardlaw

Affiliated with

Also associated with

Rating

Self-contained portable photoelectric gas measuring and warning does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Self-contained portable photoelectric gas measuring and warning , we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Self-contained portable photoelectric gas measuring and warning will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1451486