Modeling of an electromagnetic geophone with passive magnetic spring

A.J.J.A. Oome; J.L.G. Janssen; L. Encica; E.A. Lomonova; J.A.A.T. Dams

doi:10.1016/j.sna.2009.04.019

Modeling of an electromagnetic geophone with passive magnetic spring

A.J.J.A. Oome, J.L.G. Janssen, L. Encica, E.A. Lomonova, J.A.A.T. Dams

Onderzoeksoutput: Bijdrage aan tijdschrift › Tijdschriftartikel › Academic › peer review

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This paper presents an analysis of a novel, patent pending [Magnetic Innovations, www.MagneticInnovations.com], absolute velocity sensor, or geophone. Conventional geophone topologies are discussed and their intrinsic physical limitations, given by the mechanical construction, are shown. Therefore, a new topology with passive magnetic spring is proposed. A unified semi-analytical solution for the magnetic field equations is derived in cylindrical coordinates and used to determine the static response characteristics of the proposed geophone configuration. Furthermore, a prototype is built and measurements are performed and analyzed to obtain the dynamic behavior. A further improvement of the novel geophone is proposed by means of optimization using finite element analysis

Originele taal-2	Engels
Pagina's (van-tot)	142-154
Aantal pagina's	13
Tijdschrift	Sensors and Actuators, A: Physical
Volume	153
Nummer van het tijdschrift	2
DOI's	https://doi.org/10.1016/j.sna.2009.04.019
Status	Gepubliceerd - 2009

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title = "Modeling of an electromagnetic geophone with passive magnetic spring",

abstract = "This paper presents an analysis of a novel, patent pending [Magnetic Innovations, www.MagneticInnovations.com], absolute velocity sensor, or geophone. Conventional geophone topologies are discussed and their intrinsic physical limitations, given by the mechanical construction, are shown. Therefore, a new topology with passive magnetic spring is proposed. A unified semi-analytical solution for the magnetic field equations is derived in cylindrical coordinates and used to determine the static response characteristics of the proposed geophone configuration. Furthermore, a prototype is built and measurements are performed and analyzed to obtain the dynamic behavior. A further improvement of the novel geophone is proposed by means of optimization using finite element analysis",

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AU - Oome, A.J.J.A.

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AU - Lomonova, E.A.

AU - Dams, J.A.A.T.

PY - 2009

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AB - This paper presents an analysis of a novel, patent pending [Magnetic Innovations, www.MagneticInnovations.com], absolute velocity sensor, or geophone. Conventional geophone topologies are discussed and their intrinsic physical limitations, given by the mechanical construction, are shown. Therefore, a new topology with passive magnetic spring is proposed. A unified semi-analytical solution for the magnetic field equations is derived in cylindrical coordinates and used to determine the static response characteristics of the proposed geophone configuration. Furthermore, a prototype is built and measurements are performed and analyzed to obtain the dynamic behavior. A further improvement of the novel geophone is proposed by means of optimization using finite element analysis

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Modeling of an electromagnetic geophone with passive magnetic spring

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