Spectroanalytical gas measuring apparatus

Details Spectroanalytical gas measuring apparatus Spectroanalytical gas measuring apparatus

1987-06-24

1988-12-27

Howell, Janice A.

Radiant energy

Invisible radiant energy responsive electric signalling

Ultraviolet light responsive means

250343, 250347, 250504R, 356437, G01N 2135

Patent

active

047942584

ABSTRACT:
A spectroanalytical gas measuring apparatus has a radiation source (36), a transmitting condensor (19), an objective (13) and a beam divider (11) which deflects at least a part of the radiation reflected back to the apparatus by a reflector (40) to a polychromator or spectrometer (32). The transmitted radiation falls after the beam divider (11) onto a deflecting mirror (12) which is adjustable between two positions and which directs the light to an objective reflector (13). The objective reflector (13) reflects the radiation to a follow-up mirror (15) arranged opposite to the beam passage opening (14). At least one long and one short focal length objective reflector (13) are provided in order to ensure different ranges of distance in conjunction with the adjustable deflecting mirror (12).

REFERENCES:
patent: 3816741 (1974-06-01), Macall
patent: 4126396 (1978-11-01), Hartmann et al.
patent: 4268170 (1981-05-01), Flint

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