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Patent Searching and Data


Title:
MAGNETIC INDUCTION PARTICLE DETECTION DEVICE AND CONCENTRATION DETECTION METHOD
Document Type and Number:
WIPO Patent Application WO/2019/109870
Kind Code:
A1
Abstract:
Provided in the invention are a magnetic induction particle detection device and a concentration detection method. The detection device comprises a signal detection system, a detection pipeline, an excitation coil and a positive even number of induction coils, wherein the excitation coil is connected with a signal processing system and wound on the detection pipeline; and the induction coils are connected with the signal processing system and are sequentially and reversely wound on the excitation coil. The device can facilitate preparation and installation and can improve the detection precision. The method comprises the following steps: S1: obtaining an output signal of the signal detection system to obtain a voltage amplitude change condition; S2: detecting the metal particle concentration according to the obtained voltage amplitude change condition. By means of the method, the accuracy of calculation can be improved.

Inventors:
NIE YONGZHONG (CN)
ZHANG ZHONGPING (CN)
Application Number:
PCT/CN2018/118694
Publication Date:
June 13, 2019
Filing Date:
November 30, 2018
Export Citation:
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Assignee:
FATRI UNITED TESTING & CONTROL QUANZHOU TECH CO LTD (CN)
International Classes:
G01N15/06
Foreign References:
US5001424A1991-03-19
CN105954067A2016-09-21
CN103344535A2013-10-09
CN103592208A2014-02-19
CN101963570A2011-02-02
CN107907455A2018-04-13
CN108051348A2018-05-18
CN108169086A2018-06-15
CN206863240U2018-01-09
US20150091556A12015-04-02
CN105954156A2016-09-21
Other References:
LIU XIAO-LIN: "Research on Three-Coil Inner and Outer Layer Inductive Wear Particle Sensor", TRANSDUCER AND MICROSYSTEM TECHNOLOGIES, vol. 33, no. 11, 20 November 2014 (2014-11-20), pages 12 - 15, XP009521393, DOI: 10.13873/J.1000-9787(2014)11-0012-04
See also references of EP 3722782A4
Attorney, Agent or Firm:
BEIJING WANHUIDA LAW FIRM (CN)
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