| 摘要 |
PROBLEM TO BE SOLVED: To provide a contact force measuring method and a contact force measuring device of a pantograph capable of performing accurate contact force measurement with the smaller number of sensors. SOLUTION: A reaction force of a slider body energizing spring 112 for supporting a slider body 110 to a pantograph head 120 is determined by a strain gage having an FBG sensor, and a relative displacement of the slider body 110 to the pantograph head 120 is determined based on the reaction force, and then second order differentiated, to thereby calculate a relative acceleration. Hereby, an inertia force of the slider body 110 can be measured without providing an acceleration sensor on the slider body 110, and accurate contact force measurement can be performed with the small number of sensors. COPYRIGHT: (C)2008,JPO&INPIT
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