EARTHQUAKE-SHOCK DETECTOR Russian patent published in 2002 - IPC

FIELD: seismic prospecting, applicable in vibration-diagnostic equipment for measurement of displacement. SUBSTANCE: the device has a body, inertial mass (seismomass) in the form of a cube. The vertices of the inertial mass are coupled to the body by means of eight springs located in the planes of the diameter sections of the inertial mass. The faces of the inertial mass carry mirrors, and the ends of the light conduits with semitransparent mirrors are positioned opposite them. The light conduits are connected to a source of optical coherent radiation and an optical multiplexer through optical connectors-couplers. The multiplexer is connected to a phase detector, connected to a recorder, via a photodetector. EFFECT: enhanced accuracy of measurement of displacements of the inertial mass in three coordinates by using fiber-optic measuring systems relative to one inertial mass and hydrodynamic braking, as well as reduced overall dimensions. 1 dwg