Linear encoder based low frequency inertial sensor

[en] In this article, we present a novel concept of inertial sensor, based on a linear encoder. Compared to other interferometric sensors, the encoder is much more easy to mount, and the calibration more stable. A prototype has been built and validated experimentally by comparison with a commercial seismometer. It has a resolution of about 10 pm/√Hz. In order to further improve the resolution, two concepts of mechanical amplifiers have been studied and compared. One of them is shown to be extremely promising, provided that the amplifier does not stiffen the sensor.

Disciplines :

Mechanical engineering

Author, co-author :

Hellegouarch, Sylvain

Fueyo Roza, Lionel

Artoos, Kurt

Lambert, Pierre

Collette, Christophe ; Université de Liège - ULiège > Département d'aérospatiale et mécanique > Active aerospace struct. and adv. mecha. systems

Language :

English

Title :

Linear encoder based low frequency inertial sensor

Publication date :

2016

Journal title :

International Journal of Optomechatronics

ISSN :

1559-9612

eISSN :

1559-9620

Publisher :

Taylor & Francis Ltd

Volume :

Issue :

3-4

Pages :

120-129

Peer reviewed :

Peer Reviewed verified by ORBi

Additional URL :

http://hdl.handle.net/2013/ULB-DIPOT:oai:dipot.ulb.ac.be:2013/241601

Commentary :

SCOPUS: ar.j Language of publication: en DOI: 10.1080/15599612.2016.1217109

Available on ORBi :

since 19 October 2020

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