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

1978-06-26

1980-09-30

McGraw, Vincent P.

Optics: measuring and testing

By shade or color

Fluid color transmission examination

356439, 356440, G01N 2125, G01N 2100

Patent

active

042252431

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. A housing means encloses the beam. The housing means has a plurality of apertures permitting the gas to enter the housing means, to intercept the beam, and to exit from the housing means. The device further comprises means for closing the apertures and a means for purging said gas from the housing means.

REFERENCES:
patent: 1969626 (1934-08-01), Simon et al.
patent: 3895233 (1975-07-01), Boll et al.

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