Magnitude and polarity measurement of static charge
OwnerGerald L. Munsoninventor
Life of this patent
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Abstract
In a preferred embodiment, a sensor (10) for measuring magnitude and polarity of static charge on particles in a liquid, including: an electrically nonconductive conduit (26) through which the particles and the liquid can flow; a magnet (20) having first and second legs (22,24) with a gap therebetween, the gap being disposed in the conduit; and three electrodes (40, 42, 44) insulatedly disposed in the first leg and having distal ends protruding into the gap. A method of measuring magnitude and polarity of static charge on particles in a liquid is also provided.
Claims13
A sensor for measuring magnitude and polarity of static charge on particles in a liquid, comprising:
- (a) an electrically nonconductive conduit through which said particles and said liquid can flow;
- (b) a magnet having first and second legs with a gap therebetween, said gap being disposed in said conduit;
- and
- (c) three electrodes insulatedly disposed in said first leg and having distal ends protruding into said gap.
A method of measuring magnitude and polarity of static charge on particles in a liquid, comprising:
- (a) exposing to said particles distal ends of three electrodes protruding into a gap formed between first and second legs of a magnet;
- and
- (b) sweeping one of said electrodes with a high impedance triangular waveform to produce a hex modal signal.
Dependencies are inferred from the claim text.