Gas measuring apparatus with standardization means, and method t

Details Gas measuring apparatus with standardization means, and method t Gas measuring apparatus with standardization means, and method t

1979-02-02

1981-01-27

McGraw, Vincent P.

Optics: measuring and testing

For light transmission or absorption

Of fluent material

250573, 356407, 356440, G01N 2125, G01N 2159, G01N 2185

Patent

active

042472059

ABSTRACT:
An apparatus and a method for standardizing a gas measuring device has a source capable of emitting a beam of radiation aligned to impinge a detector and gas particles. A hollow, open-ended tube is used as a standardization means and is placed adjacent to the beam. The tube can be moved to enclose the beam, to prevent the gas from intercepting the beam, and to transmit substantially all of the radiation from the source to the detector.

REFERENCES:
patent: 2498506 (1950-02-01), Ramser
patent: 3895233 (1975-07-01), Boll et al.

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