FIBER-OPTICAL ACCELERATION TRANSDUCER

摘要

FIELD: measurement technology. SUBSTANCE: given acceleration transducer is intended for use in high- precision measurement with the aid of optical sensors matched with light guides including fiber-optical sensors which sensitive elements are based on fiber light guides. This acceleration transducer can be used as base to design three-coordinate precision digital fiber-optical accelerometer for measurement of linear accelerations, very low accelerations included, within wide dynamic range. Case of transducer houses reflector. End of fiber light guide is supported as cantilever in case. Inertial mass is anchored on free end of cantilever of fiber light guide placed in through hole in inertial mass. End face of free end of cantilever of fiber light guide is located above reflector. Inductance coils are positioned in case in symmetry with axis of fiber light guide. Reflector is manufactured in the form of concave mirror formed by two cylindrical surfaces. Axes of cylindrical surfaces are mutually perpendicular and cross axis of fiber light guide at right angles above cut of concave mirror. Center of mass of inertial mass made from magnetic material lies on axis of fiber light guide. EFFECT: increased precision of measurement of linear accelerations. 4 dwg