Composite fire sensor

Details Composite fire sensor Composite fire sensor

1985-07-11

1987-02-03

Frankfort, Charles

Thermal measuring and testing

Temperature measurement

Combined with diverse art device

340628, 340577, 340578, 340634, 374121, G01K 300

Patent

active

046406280

ABSTRACT:
A composite fire sensor comprising a first sensor element sensitive to a change in incident infrared rays, a second sensor element having a variable electric conductivity according to gas absorption/desorption, at least one comparator for combining the outputs of the first and second sensor elements, and a delay circuit for delaying the output of at least one of the comparators. Predetermined reference voltages are supplied to the comparators.

REFERENCES:
patent: 3865550 (1975-02-01), Bott et al.
patent: 3882477 (1975-05-01), Mueller
patent: 3990518 (1976-11-01), Hemme
patent: 4005754 (1977-02-01), Linden et al.
patent: 4013943 (1977-03-01), Chou et al.
patent: 4088986 (1978-05-01), Boucher
patent: 4254414 (1981-03-01), Street et al.
patent: 4305069 (1981-12-01), Machan et al.
patent: 4319229 (1982-03-01), Kirkor
patent: 4351181 (1982-09-01), Currans
patent: 4455487 (1984-06-01), Wendt

Affiliated with

Also associated with

Rating

Composite fire sensor does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Composite fire sensor, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Composite fire sensor will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1089524