Title: Vibration sensor based on magnetic suspension principle
Application Number: 200510111893 Application Date: 2005.12.23
Publication Number: 1987373 Publication Date: 2007.06.27
Approval Pub. Date: Granted Pub. Date:
International Classifi-cation: G01H11/02;G01V1/18
Applicant(s) Name: Tan Chengzhong Address:
Inventor(s) Name: Tan Chengzhong
Attorney & Agent:
Abstract:
    The vibration sensor is composed of magnet and winding. Characters are that when sensor induces external vibration, relative motion between magnetic suspended magnet and magnet fixed inside sensor occurs. Vibration of suspended magnet causes change of flux through coil. Based on Faraday law of electromagnetic induction, coil generates induction electromotive force being direct proportion to vibration velocity. Features are: simple and compact structure without need of metal reed and spring for fixing suspended magnet, wider induced vibration frequency spectrum. The disclosed vibration sensor is new type passive speed type vibration sensor.
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