A new position sensor based on the MDL technique

Hristoforou, E; Dimitropoulos, PD; Petrou, J

dc.contributor.author	Hristoforou, E	en
dc.contributor.author	Dimitropoulos, PD	en
dc.contributor.author	Petrou, J	en
dc.date.accessioned	2014-03-01T01:23:26Z
dc.date.available	2014-03-01T01:23:26Z
dc.date.issued	2006	en
dc.identifier.issn	0924-4247	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/16971
dc.subject	Magnetostriction	en
dc.subject	Magnetostrictive delay line	en
dc.subject	Position sensor	en
dc.subject.classification	Engineering, Electrical & Electronic	en
dc.subject.classification	Instruments & Instrumentation	en
dc.subject.other	Eddy currents	en
dc.subject.other	Magnetostriction	en
dc.subject.other	Magnetostrictive devices	en
dc.subject.other	Soft magnetic materials	en
dc.subject.other	Tracking (position)	en
dc.subject.other	Magnetostrictive delay line (MDL)	en
dc.subject.other	Moving magnet	en
dc.subject.other	Position sensor	en
dc.subject.other	Sensor response sensor response	en
dc.subject.other	Electric delay lines	en
dc.title	A new position sensor based on the MDL technique	en
heal.type	journalArticle	en
heal.identifier.primary	10.1016/j.sna.2006.04.015	en
heal.identifier.secondary	http://dx.doi.org/10.1016/j.sna.2006.04.015	en
heal.language	English	en
heal.publicationDate	2006	en
heal.abstract	In this paper we present a position sensor based on the magnetostrictive delay line (MDL) technique and the eddy currents induced on a soft magnetic material preferably in the form of a ribbon on top of the MDL, which generate elastic micro-strains on the MDL and consequently a pulsed voltage output across a search coil. These eddy currents are due to the pulsed current transmitted through a pair of pulsed current conductors parallel to the MDL, close to the soft magnetic material, and the presence of a permanent magnet, movable along the length of the MDL. The sensor output is the variation of the delay time of the MDL pulsed voltage output due to the motion of a moving magnet along the length of the MDL. The sensor response is by design linear, monotonic and anhysteretic. The sensor materials and characteristics are discussed. Some of the most important sensor applications are presented, namely the static measurement of the position of pneumatic pistons, liquid level and absolute ground velocity. Finally, a possible method of production is proposed. (c) 2006 Elsevier B.V. All rights reserved.	en
heal.publisher	ELSEVIER SCIENCE SA	en
heal.journalName	Sensors and Actuators, A: Physical	en
dc.identifier.doi	10.1016/j.sna.2006.04.015	en
dc.identifier.isi	ISI:000242126800019	en
dc.identifier.volume	132	en
dc.identifier.issue	1 SPEC. ISS.	en
dc.identifier.spage	112	en
dc.identifier.epage	121	en