Real time particle fallout monitor with tubular structure

Details Real time particle fallout monitor with tubular structure Real time particle fallout monitor with tubular structure

1988-02-04

1989-04-25

Nelms, David C.

Radiant energy

Photocells; circuits and apparatus

Optical or pre-photocell system

356338, G01N 1506

Patent

active

048250945

ABSTRACT:
An apparatus for monitoring particle fallout incorporates a particle flux monitor and a tubular structure. The tubular structure is positioned over an aperture in the housing of the monitor to provide a still air condition so that the particles that descend to the monitor and pass through the light net of the monitor are precluded from being carried back to the light net, which would result in an erroneous count.

REFERENCES:
patent: 3708675 (1973-01-01), Tashiro et al.
patent: 3922656 (1975-11-01), Horvath et al.
patent: 4155653 (1979-05-01), San Miguel et al.
patent: 4474472 (1984-10-01), Winter
patent: 4748336 (1988-05-01), Fujie et al.
William C. Hinds, "Aerosol Technology", John Wiley & Sons, 1982, pp. 341-344.

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