title: Automatic north sensor using a fiber-optic gyroscope.
abstract: Computer-controlled, fully automatic north sensors using all-fiber gyros are developed. With the use of a fiber gyro with a scale factor of 5.4 s and a 1665-m polarization-maintaining fiber, the north direction is detected with a high measurement accuracy of 0.056°. The effect of the surrounding mechanical noises on the achievable measurement accuracy is investigated.
authors.forename: T
authors.initials: T
authors.lastname: Tanaka
authors.forename: Y
authors.initials: Y
authors.lastname: Igarashi
authors.forename: M
authors.initials: M
authors.lastname: Nara
authors.forename: T
authors.initials: T
authors.lastname: Yoshino