THREE-COMPONENT ACCELEROMETER

摘要

The proposed three-component accelerometer comprises three monoaxial accelerometers (4) whose respective sensitive axes have different alignments. Each accelerometer has a housing, a pendulum (7) with supports and an angle sensor connected by a compensating amplifier to the master coil (9) of the inertia sensor. The monoaxial accelerometers are fitted in the turnings of the gap in the common magnet system comprising a dipole permanent magnet (1) whose poles are connected to a polar tip (2) and a magnetic circuit (3). The housings of the monoaxial accelerometers are non-magnetic, the planes of the master coil windings in the inertia sensors lie along the perpendiculars to the axes of the supports of the magnetic field force lines in the magnet system turnings. Additional magnetic circuits are provided inside the coils of each monoaxial accelerometer. In particular cases, the common magnet system is provided with a permanent bar magnet and an external magnetic circuit, with an annular external magnet and internal magnetic circuit, with cylindrical and conical annular gaps, with an angular alignment of the axes of the accelerometer supports relative to the surface boundary gaps and with differing positions of the pendulum arms relative to the windings of the inertia sensor coil.