Apparatus for sensing and measuring flow of dry particulate mate

Details Apparatus for sensing and measuring flow of dry particulate mate Apparatus for sensing and measuring flow of dry particulate mate

1994-07-13

1996-07-30

Regan, Maura K.

Electricity: measuring and testing

A material property using electrostatic phenomenon

Frictionally induced

7386104, G01N 2760

Patent

active

055415180

ABSTRACT:
An improved apparatus for sensing and measuring the flow of dry particulate materials including a sensing device (20C) connected to a remote measuring device by a coaxial cable (25). The sensing device (20C) has a probe (24) defining an electrode which may be positioned within a flow line (18). Particles passing over the probe (24) produce a measurable electrical charge to the probe (24) due to the triboflow effect which may be transmitted to a remote measuring device by a coaxial cable (25). A shield (40) envelopes the probe (24) in a telescoping relation and comprises a wire mesh screen, which permits the flow of dry particulate material over the probe (24) while restricting stray electrical interference and electromagnetic radiation to the probe (24).

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