Method and apparatus for sampling of a particle-bearing gas

Details Method and apparatus for sampling of a particle-bearing gas Method and apparatus for sampling of a particle-bearing gas

1978-11-30

1981-01-27

Swisher, S. Clement

Measuring and testing

Measuring vessel

G01N 122

Patent

active

042467888

ABSTRACT:
A method and apparatus for sampling a particle-bearing gas in which a vacuum is applied to the gas to generate a stream of gas, the flow of the stream is maintained constant, and particles are collected from the stream. A constant flow controller responsive to the static pressure of the gas in the stream provides a flow restriction which gradually decreases to compensate for a gradually increasing flow restriction caused by particles collecting on an initially particle-free collection filter located in the stream.

REFERENCES:
patent: 3965748 (1976-06-01), Boupel

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