Tdk Corporation

Japan Aviation Electronics Industry, Limited

Takuya Daigo

Takakazu Imai

Hiroyoshi Nakajima

Junya Fukuda

Reiji Okuno

Akihiro Tomioka

Shintaro Ichikawa

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

Provided is a magnetic field detection device and a current sensor capable of increasing the degree of freedom in selecting the type of the magnetic field detection element. A magnetic field detection deviceincludes a conductorthat generates a magnetic field; a C coreprovided so as to surround the conductor; and a magnetic field detection elementthat detects a magnetic field. The C corehas a gap G, and the magnetic field detection elementis disposed at a position where the magnetic field generated from the conductorcan be detected, the position being outside the gap G. Since the direction of the magnetic flux varies outside of the gap Gfrom place to place, the direction of the magnetic flux that passes through the magnetic field detection elementcan be arbitrarily selected by arbitrarily selecting the installation location of the magnetic field detection element. Therefore, the degree of freedom in selecting the type of the magnetic field detection elementis increased.

Magnetic field detection device and current sensor

Growing community of inventors

Tokyo, Japan

Takuya Daigo