POSITION MEASURING DEVICE OF SMALL BORE PROPELLING MACHINE

PROBLEM TO BE SOLVED: To provide a position measuring device of a small bore propelling machine, capable of measuring angular velocity with high accuracy, even in a vibration loaded state. SOLUTION: In this position measuring device of the small bore propelling machine, on which an optical fiber gyr...

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Bibliographische Detailangaben
Hauptverfasser: IRIYAMA YOSHIHIRO, HINO HIDENORI
Format: Patent
Sprache:eng
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Zusammenfassung:PROBLEM TO BE SOLVED: To provide a position measuring device of a small bore propelling machine, capable of measuring angular velocity with high accuracy, even in a vibration loaded state. SOLUTION: In this position measuring device of the small bore propelling machine, on which an optical fiber gyro 3 for measuring the angular velocity of the pusher 2 for burying a small bore pipe 1 in the ground is loaded, a vibration isolator 10 for suppressing application of vibration to the optical fiber gyro 3 is installed.