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:
Apr. 27, 2021
Filed:
Sep. 11, 2017
Hitachi High-tech Fine Systems Corporation, Saitama, JP;
Ryuzo Kawabata, Tokyo, JP;
Hiroshi Suzuki, Saitama, JP;
Kenji Yamamoto, Saitama, JP;
Akihiko Kandori, Tokyo, JP;
Hitachi High-Tech Fine Systems Corporation, Saitama, JP;
Abstract
Provided is a rail inspection system capable of accurately detecting a defect of a railroad rail. The system includes: a sensor part group that has a plurality of sensor parts having receiver coils, and first oscillator coils and second oscillator coils corresponding to the receiver coils being arranged in a line parallel in a width direction of a railroad rail to be inspected; an oscillation part that supplies an oscillation signal to each of the first oscillator coils and the second oscillator coils; and a detection part group that has a plurality of detection parts to detect, with respect to an output signal from each of the receiver coils when the sensor part group moves in a laying direction of the railroad rail, a first inspection signal corresponding to a first phase of the output signal and a second inspection signal corresponding to a second phase of the output signal.