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Study of magnetic interference on an LVDT: FEM modeling and experimental measurements
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نویسنده
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danisi a. ,masi a. ,losito r. ,martino m. ,spiezia g.
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منبع
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journal of sensors - 2011 - دوره : 2011 - شماره : 0
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چکیده
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Static or slowly varying magnetic fields can affect the performances of linear variable differential transformer by inducing a position reading drift. the problem is barely addressed in lvdts' datasheets,and no quantitative information on the induced error is given. an lvdt finite element model is here presented together with its experimental validation in order to propose a tool for the study of the effects of external magnetic fields on lvdts and for the design of less sensitive devices. the lvdt model has been validated in standard working conditions and in presence of an external magnetic field by means of a complete set of experimental measurements performed on a custom prototype,manufactured following the fem guidelines. © 2011 alessandro masi et al.
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آدرس
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en-sti group,european organization for nuclear research (cern),ch-1211 geneva 23,switzerland,imt-lai laboratory,école polytechnique fédérale de lausanne (epfl), Switzerland, en-sti group,european organization for nuclear research (cern), Switzerland, en-sti group,european organization for nuclear research (cern), Switzerland, en-sti group,european organization for nuclear research (cern),ch-1211 geneva 23,switzerland,electrical engineering department,university of naples federico ii,via claudio,21, Italy, en-sti group,european organization for nuclear research (cern), Switzerland
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Authors
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