Title:
APPARATUS AND METHOD FOR DETECTING RAILROAD RAIL BREAKAGE
Document Type and Number:
Japanese Patent JP2014080133
Kind Code:
A
Abstract:
To provide an apparatus for detecting a railroad rail breakage capable of surely, stably, and inexpensively detecting a railroad rail breakage.
An apparatus for detecting a railroad rail breakage includes: an ultrasonic transducer 12 to receive ultrasonic propagating along a rail 1; and a signal processing device 16 to output an alarm signal when the ultrasonic transducer 12 receives ultrasonic propagating along the rail due to impulsive vibration generated by breakage of the rail 1.
Inventors:
KOKUBU SEIJI
WAKAIZUMI TAKAYUKI
SATO IZUMI
KURAMOCHI MASAAKI
WAKAIZUMI TAKAYUKI
SATO IZUMI
KURAMOCHI MASAAKI
Application Number:
JP2012230009A
Publication Date:
May 08, 2014
Filing Date:
October 17, 2012
Export Citation:
Assignee:
TOKYO KEIKI INC
TOKYO KEIKI RAIL TECHNO INC
TOKYO KEIKI RAIL TECHNO INC
International Classes:
B61L23/00; E01B35/00
Domestic Patent References:
| JPH102951A | 1998-01-06 | |||
| JP2003154937A | 2003-05-27 | |||
| JPH1059181A | 1998-03-03 |
Foreign References:
| US5743495A | 1998-04-28 | |||
| WO1998007610A1 | 1998-02-26 | |||
| US6216985B1 | 2001-04-17 |
Attorney, Agent or Firm:
Eiichi Yamaguchi