Electricity: measuring and testing – Impedance – admittance or other quantities representative of... – Distributive type parameters
Patent
1989-12-07
1991-12-10
Harvey, Jack B.
Electricity: measuring and testing
Impedance, admittance or other quantities representative of...
Distributive type parameters
324639, 324642, G01N 2200
Patent
active
050721887
ABSTRACT:
An apparatus and method for measuring the conductivity of a fluid. The apparatus 10 provides both a contact and non-contact monitoring of fluid conductivity by measuring the A.C. dielectric properties of the fluid. The apparatus 10 transmits an electromagnetic wave into the fluid 22 and analyzes the transmitted and reflected waves providing an indication of the conductivity of the fluid 22. The apparatus 10 is versatile in that it allows for the fluid to be in the form of a spray. In a specific illustrative implementation, a novel nozzle is provided to monitor the conductivity of paint spray 22 as it passes therethrough.
REFERENCES:
patent: 4193356 (1980-03-01), Vehe et al.
patent: 4484133 (1984-11-01), Riggin
patent: 4507602 (1985-03-01), Aquirre
patent: 4764718 (1988-08-01), Revus et al.
patent: 4888547 (1989-12-01), McGinn et al.
Bates Kenn S.
Chang David B.
Pierce Brian M.
Denson-Low Wanda
Harvey Jack B.
Hughes Aircraft Company
Sales Michael W.
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