Fluid conductively sensor

Details Fluid conductively sensor Fluid conductively sensor

1997-10-06

1999-09-28

Ballato, Josie

Electricity: measuring and testing

Electrolyte properties

Using a conductivity determining device

324715, 324695, G01R 2722

Patent

active

059594551

ABSTRACT:
The fluid conductivity sensor disclosed herein is adapted for the non-contacting measurement of fluid conductivity and utilizes first and second insulating tubes, each of which is provided with both the driving transformer and the sensing transformer. The sensor is immersed in the fluid to be tested so that the tubes fill with the fluid. The driving transformer's are oppositely poled so that the current induced in one tube tends to return through the other tube. Shrouds are provided which link the corresponding ends of the tubes and operate to obstruct in-fluid current flow not linking both of the tubes. Accordingly the influence of objects nearby in the fluid is substantially eliminated.

REFERENCES:
patent: 3603873 (1971-09-01), Cirulis
patent: 3980946 (1976-09-01), Fleury
patent: 4740755 (1988-04-01), Ogawa
patent: 5252925 (1993-10-01), Matsumoto et al.
patent: 5341102 (1994-08-01), Akiyama et al.

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