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. 04, 2020
Filed:
Apr. 21, 2014
Tsinghua University, Beijing, CN;
Zandong Han, Beijing, CN;
Haiquan Zhang, Beijing, CN;
Dong Du, Beijing, CN;
Xiaoyang Li, Beijing, CN;
Haipeng Zhou, Beijing, CN;
TSINGHUA UNIVERSITY, Beijing, CN;
Abstract
A fuel ball detecting method and system with a self-diagnosis function are provided. The method includes: exciting a first detecting coil and a second detecting coil of a fuel ball sensor disposed outside a pipeline; obtaining a first voltage signal Ufrom the first detecting coil and a second voltage signal Ufrom the second detecting coil; processing Uand Uby differential amplification, band pass filtering, phase sensitive detection and low pass filtering by a signal processor to obtain a fuel ball waveform signal U; determining whether the fuel ball passes the pipeline according to Uby a single chip microcomputer; determining whether the first and the second detecting coils, the signal processor and the single chip microcomputer work normally; outputting a result showing whether the fuel ball passes the pipeline, when the first and the second detecting coils, the signal processor and the single chip microcomputer work normally.