The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 26, 2002
Filed:
Sep. 03, 1999
Applicant:
Inventor:
Kyong M. Park, Thousand Oaks, CA (US);
Assignee:
Kavlico Corporation, Moorpark, CA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01R 2/726 ;
U.S. Cl.
CPC ...
G01R 2/726 ;
Abstract
A capacitive sensor is employed to measure the dielectric constant of miscible liquids, and thereby determine the relative concentration of the two liquids. Further, a feedback circuit may be provided to change the operation of the system in accordance with the relative concentration of the liquids. Further, circuit arrangements may be provided to adjust the sensitivity and offset of the electrical circuit included in the system to match the output of the sensor with the dielectric constants being measured.