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Patent Searching and Data


Title:
TARGET MATERIAL SENSING USING RESONANT CIRCUIT WITH SENSING CAPACITOR AND ELECTRICAL ISOLATION
Document Type and Number:
WIPO Patent Application WO/2019/205085
Kind Code:
A1
Abstract:
A system (100) includes a conductive element (102). The system also includes a resonant circuit (110) having a sensing capacitor (103) arranged such that an amount of target material in a sensing zone (108) of the sensing capacitor (103) changes a capacitance of the sensing capacitor (103), wherein the conductive element (102) is electrically isolated from at least part of the resonant circuit (110). The system (100) also includes a resonant circuit analyzer (114) configured to detect a resonant frequency of the resonant circuit (110) and to output a digitized analyzer signal based on the resonant frequency. The system (100) also includes a processor (116) configured to receive the digitized analyzer signal, to determine a target material estimate based on the digitized analyzer signal, and to output the target material estimate or a signal derived from the target material estimate to an output device (118).

Inventors:
SEIDL, Michael (Spechtweg 5A, Freising, Freising, DE)
WANG, Yichang (No. 33 Daqiaobei Road, Pukou DistrictNanjing, Jiangsu 1, 210031, CN)
Application Number:
CN2018/084792
Publication Date:
October 31, 2019
Filing Date:
April 27, 2018
Export Citation:
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Assignee:
TEXAS INSTRUMENTS INCORPORATED (12500 Ti Boulevard, Ms 3999Dallas, Tx, 75243, US)
TEXAS INSTRUMENTS JAPAN LIMITED (24-1 Nishi-Shinjuku 6-Chome, Shinjuku-ku, Tokyo, 160-8366, JP)
International Classes:
F25D21/02
Foreign References:
JPH0213774A1990-01-18
US20130024169A12013-01-24
JP2013134227A2013-07-08
GB2496136A2013-05-08
Attorney, Agent or Firm:
LEE AND LI - LEAVEN IPR AGENCY LTD. (Unit 2202, Tower A Beijing Marriott Center, No. 7,,Jian Guo Men South Avenue, Beijing 5, 100005, CN)
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