Streaming potential system and method

Details Streaming potential system and method Streaming potential system and method

1996-10-18

2000-02-08

Voeltz, Emanuel T.

Data processing: measuring, calibrating, or testing

Measurement system in a specific environment

Mechanical measurement system

204232, 204242, C25B 1100

Patent

active

060236612

ABSTRACT:
A fully automated computer controlled system and method to simultaneously measure in a dynamic mode the streaming potential, impedance and permeability resulting from a flow of various liquids through a sample, particularly a compressed mass of human hair. The system includes four air-pressurized reservoirs and three test cells, each test cell containing a sample to be tested. An impedance measurement is made by impressing a signal wave train across each sample over a selected range of frequencies, preferably in the 10-10,000 Hz range, rather than at a single frequency. The air pressure is controlled within 2% of a selected pressure and the outlet flow of liquid from the test cells is continually measured to provide an accurate and reproducible set of measurements.

REFERENCES:
patent: 4427944 (1984-01-01), Chandler

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