Electricity: measuring and testing – Electrolyte properties – Using a conductivity determining device
Patent
1986-05-30
1989-04-25
Eisenzopf, Reinhard J.
Electricity: measuring and testing
Electrolyte properties
Using a conductivity determining device
324442, 324446, G01N 2706, G01N 2708, G01N 2772
Patent
active
048251682
ABSTRACT:
A liquid conductivity sensor which features simply and inexpensively driving the excitation transformer of a two-transformer/fluid-loop remote conductivity sensor with a square wave excitation signal provided by a digital timer and a flip-flop. Also disclosed is using an electrodeless conductivity sensor to sense conductivity of dialysate.
REFERENCES:
patent: 3292077 (1966-12-01), Sloughter
patent: 3404336 (1968-10-01), Rosenthal
patent: 3919627 (1975-11-01), Allen
patent: 4138639 (1979-02-01), Hutchins
patent: 4220920 (1980-09-01), Gross
Great Lakes Instruments, Inc. Models 32014 and 33324 Electrodeless Conductivity Sensors, data sheet 30002/1081.
Great Lakes Instruments, Inc., Electrodeless Conductivity Analyzers, data sheet S75A/1182.
Boucher Terry D.
Eilers George J.
Lobdell Donn D.
Manes Michael R.
Ogawa Francis T.
Cobe Laboratories, Inc.
Eisenzopf Reinhard J.
Harvey Jack B.
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