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.

Date of Patent:
Dec. 29, 2015

Filed:

Apr. 22, 2014
Applicant:

Finetek Co., Ltd., New Taipei, TW;

Inventors:

Jia-Yi Chen, New Taipei, TW;

Yung-Long Luo, New Taipei, TW;

Wei-Yu Chen, New Taipei, TW;

Chao-Kai Cheng, New Taipei, TW;

Assignee:

FINETEK CO., LTD., New Taipei, TW;

Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
G01B 7/14 (2006.01); G01N 9/00 (2006.01); G01N 9/12 (2006.01); G01N 9/14 (2006.01); G01N 9/36 (2006.01);
U.S. Cl.
CPC ...
G01N 9/36 (2013.01);
Abstract

A liquid density sensor has a sensing module, a sensing rod and a floating device. The sensing module has a control circuit having computing functions. The sensing rod has a sensing line electrically connected to the control circuit. The floating device has a first magnetic unit and a floating ball mounted therein. The sensing rod is mounted through the floating device and the floating ball. The floating ball has a second magnetic unit. A specific gravity of the floating ball is lower than that of the floating device. The control circuit calculates a liquid density of liquid based on a distance between the first magnetic unit and the second magnetic unit according to a linear formula.


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