WIDTH-DIRECTION END POSITION MEASURING DEVICE FOR BAND-SHAPED MEMBER, WIDTH-DIRECTION CENTER POSITION MEASURING DEVICE FOR BAND-SHAPED MEMBER, AND MICROWAVE SCATTERING PLATE

摘要

The apparatus according to the present invention is an apparatus for measuring width direction end position of a strip which passes through an enclosed space surrounded by a plurality of surfaces. The apparatus includes an antenna section which emits electromagnetic waves toward the width direction end and receives the electromagnetic waves reflected by the width direction end; a signal processing section for determining a position of the width direction end using the reflected electromagnetic waves; and a scattering plate for scattering electromagnetic waves which are incident thereon, wherein the antenna section is installed on a first surface which faces the width direction end a position of which is to be determined and the scattering plate is installed on a second surface which faces the first surface.