Nonintrusive airborne iron based particle detector

Details Nonintrusive airborne iron based particle detector Nonintrusive airborne iron based particle detector

1992-10-13

1995-06-27

McGraw, Vincent P.

Optics: measuring and testing

With sample preparation

Depositing particles on optical surface

73 2801, 73 3102, G01N 140, G01N 104

Patent

active

054284406

ABSTRACT:
The present invention is an apparatus for detecting iron based particulate matter in air/gas streams. The sensor 10 includes a flow through sensor body 11 having an interior surface. A high power magnet 12 for use in attracting airborne iron particulate matter is formed as part 13 of the interior surface of the sensor body. A high contrast photoelectric sensor 14 coupled to a fiber optic bundle 15 is used for detecting changes in the contrast of the magnetic surface.

REFERENCES:
patent: 3462608 (1969-08-01), Weston et al.
patent: 3700330 (1972-10-01), Davis
patent: 4047814 (1977-09-01), Westcott
patent: 4441816 (1984-04-01), Hencken et al.

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