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dc.contributor.authorMerte, R.de
dc.contributor.authorPeier, D.de
dc.contributor.authorTeunissen, J.de
dc.date.accessioned2010-04-08T08:37:00Z-
dc.date.available2010-04-08T08:37:00Z-
dc.date.issued2004de
dc.identifier.urihttp://hdl.handle.net/2003/27031-
dc.identifier.urihttp://dx.doi.org/10.17877/DE290R-12981-
dc.description.abstractIn the area of the position and time resolved measurement of the magnetic field distribution in small gaps between workpieces and coils in high-speed sheet metal forming optical sensors are predestined to be integrated into the very small geometries of experimental setups. Optical sensors for current measurement based on the magneto-optic Faraday effect are well known for a long time. This effect can also be used for the direct measurement of magnetic fields. For the use in electromagnetic high-speed metal forming applications, only very small field probes are probable. The measurement of axial symmetric fields can be achieved with two connected fibres with different Verdet constants. They solve the problem with the not given measurement value, which occurs by the use of only one fibre because of its closed integral domain. A continuous time signal of the magnetic field can be calculated for discrete regions. Likewise, it is possible to employ miniature fibre-optic magnetic field point sensors for the field determination in the gap of an electromagnetic high-speed forming device. It is necessary to examine the influence on the polarisation state and the intensity of the light in a fibre. There are two different sensors shown in this paper. One is based on a piece of flint glass fibre spliced between two polarising fibres, and the other sensor arrangement consists of two glued SiO_2 blocks. A workbench for assembling of fibre-optic sensors using the splice technology has been constructed and will be presented. First trial measurements of the magnetic field, compared to the causing current, show the functionality of these kinds of optical sensors and are discussed under the aspect of optimisation.en
dc.language.isoende
dc.publisherInstitut für Umformtechnik - Technische Universität Dortmundde
dc.relation.ispartof1st International Conference on High Speed Forming, March 31, April 1, 2004, Dortmund, Germanyde
dc.subjectminiaturizationde
dc.subjectoptical fibre sensorde
dc.subjectprobede
dc.subject.ddc620de
dc.subject.ddc670de
dc.titleOptical Position and Time Resolved Measurement of Magnetic Field Distribution in High Speed Metal Formingen
dc.typeTextde
dc.type.publicationtypeconferenceObjectde
dcterms.accessRightsopen access-
Appears in Collections:High Speed Forming 2004

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