Japan Aviation Electronics Industry, Limited

Kirin Holdings Kabushiki Kaisha

Shintaro Ichikawa

Takuya Daigo

Akihiro Tomioka

A bridge displacement calculating apparatus comprises a DC component removing part, a high-pass filter part, a first integration part, and a second integration part. The DC component removing part outputs DC-removed acceleration data. The high-pass filter part uses, as a cutoff frequency, the reciprocal of a time in which a vehicle has passed between the frame bodies of the bridge. The first integration part integrates input data thereto. The second integration part integrates input data thereto and outputs displacement data. The high-pass filter part receives DC-removed acceleration data, the first integration part receives the output of the high-pass filter part, the second integration part receives the output of the first integration part, or the first integration part receives the DC-removed acceleration data, the high-pass filter part receives the output of the first integration part, and the second integration part receives the output of the high-pass filter part.

Bridge displacement calculating apparatus, bridge displacement measuring apparatus, bridge displacement calculating method, bridge displacement measuring method, and non-transitory computer-readable recording medium

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Tokyo, Japan

Shintaro Ichikawa