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1. (WO2018020393) PARALLEL DIPOLE LINE TRAP SEISMOMETER AND VIBRATION SENSOR

Pub. No.:    WO/2018/020393    International Application No.:    PCT/IB2017/054467
Publication Date: Fri Feb 02 00:59:59 CET 2018 International Filing Date: Tue Jul 25 01:59:59 CEST 2017
IPC: G01V 1/16
Applicants: INTERNATIONAL BUSINESS MACHINES CORPORATION
IBM UNITED KINGDOM LIMITED
IBM (CHINA) INVESTMENT COMPANY LIMITED
Inventors: GUNAWAN, Oki
VIRGUS, Yudistira
Title: PARALLEL DIPOLE LINE TRAP SEISMOMETER AND VIBRATION SENSOR
Abstract:
Parallel dipole line (PDL) trap seismometer and vibration sensors are provided. The seismometer includes: at least one PDL trap having a pair of dipole line magnets, and a diamagnetic object levitating above the dipole line magnets; and a sensing system for determining a position of the diamagnetic object relative to the dipole line magnets and to yield the seismic signal in terms of displacement of acceleration. Methods for sensing vibrations using the present PDL trap seismometer and vibration sensors are provided.