Reflector optics with impedance sensing orifice

Details Reflector optics with impedance sensing orifice Reflector optics with impedance sensing orifice

1980-08-25

1982-07-27

Tokar, Michael J.

Electricity: measuring and testing

Determining nonelectric properties by measuring electric...

Erosion

2504581, G01N 2700

Patent

active

043419933

ABSTRACT:
A particle analyzing apparatus comprising a reflector chamber containing an electrolyte and having a concave reflector surface with a first focus and a second focus; entraining structure, having an introduction tube for providing and moving a stream of particles suspended in an electrolyte solution through the first focus; a source of radiant energy for illuminating the particles as they pass through the first focus to produce a source of detectable radiation signals, which reflect off the concave reflector surface to be subsequently collected and analyzed; an exit tube coaxially aligned with the introduction tube; a sensing orifice mounted in the tip of the introduction tube or the exit tube; and a pair of energized electrodes disposed in the electrolyte solution on either side of the orifice, whereby the orifice creates a constricted electrical path in which the stream of particles generate electrical impedance signals as they move therethrough.

REFERENCES:
patent: 3910702 (1975-10-01), Corll
patent: 3941479 (1976-03-01), Whitehead

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