Gas measuring and warning device

Details Gas measuring and warning device Gas measuring and warning device

1987-02-10

1991-10-15

Warden, Robert J.

Chemical apparatus and process disinfecting, deodorizing, preser

Analyzer, structured indicator, or manipulative laboratory...

Means for analyzing gas sample

73 614, 358107, 422 59, 422 86, 422 87, 422 88, 436164, 436167, 436169, G01N 2101

Patent

active

050572806

ABSTRACT:
A gas measuring and warning device includes a test tube which is traversed by the gas to be detected and with a photoelectric sampling means which contains an imaging optical system by which the test tube reaction image is projected onto the photo-sensitive row of the sensor elements. The imaging optical system contains a cylindrical lens having a cylinder axis which is parallel to the longitudinal axis of the test tube and to a row of sensor elements. Advantageously an achromatic lens as well as of an interference filter and of a pulse light source as used.

REFERENCES:
patent: 3074634 (1963-01-01), Gamo
patent: 3678192 (1972-07-01), Akuta
patent: 3909519 (1975-09-01), Page
patent: 4063821 (1977-12-01), King et al.
patent: 4245997 (1981-01-01), Wiesner

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