ANGLE SENSOR

PROBLEM TO BE SOLVED: To detect the direction of the edge part of a digging head or the like not seen from the ground in soil. SOLUTION: An angle sensor 1 is composed of: insulation colors 12 and 13 attached at right angles to a shaft center of a casing 11 and forming a ring-like space in a square c...

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Bibliographic Details
Main Author NEMOTO ISAO
Format Patent
LanguageEnglish
Published 31.01.2008
Subjects
EARTH DRILLING
EARTH DRILLING, e.g. DEEP DRILLING
FIXED CONSTRUCTIONS
GALLERIES
GYROSCOPIC INSTRUMENTS
LARGE UNDERGROUND CHAMBERS
MEASURING
MEASURING DISTANCES, LEVELS OR BEARINGS
MINING
NAVIGATION
OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS
PHOTOGRAMMETRY OR VIDEOGRAMMETRY
PHYSICS
SHAFTS
SURVEYING
TESTING
TUNNELS
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Summary:PROBLEM TO BE SOLVED: To detect the direction of the edge part of a digging head or the like not seen from the ground in soil. SOLUTION: An angle sensor 1 is composed of: insulation colors 12 and 13 attached at right angles to a shaft center of a casing 11 and forming a ring-like space in a square cross section; a pair of contact rods 15 provided to be mutually neared to one point in the space; one metal ball 14 movable by being housed in the space; a detection circuit closing a circuit when the metal ball 14 is simultaneously in contact with both of the contact rods 15; and a vibration motor 16 generating sounds by being driven when the circuit is closed. COPYRIGHT: (C)2008,JPO&INPIT
Bibliography:Application Number: JP20060193206