Measurement of magnetic field gradients by the hall effect

dc.contributor.author	Redin, Robert
dc.contributor.author	Danielson, G.
dc.contributor.department	Ames Laboratory
dc.date	2018-02-13T17:13:13.000
dc.date.accessioned	2020-06-29T23:18:21Z
dc.date.available	2020-06-29T23:18:21Z
dc.date.embargo	2013-11-10
dc.date.issued	1955-12-01
dc.description.abstract	<p>A magnetic field gradient measuring device, which uses the Hall effect in germanium, has been constructed. The field sensitive element is a bar of germanium 1 mm by 1 mm by 12 mm with two sets of Hall leads attached 2 mm either side of its center. One hundred cycle alternating current flows in the long direction of the bar. In a magnetic field two 100 cycle Hall voltages are obtained. These voltages, which are proportional to the magnetic field strength at two points of the field 4 mm apart, are subtracted to give an output directly proportional to the magnetic field gradient. The instrument will also measure field strengths and relative gradients. The instrument was tested in a calculable magnetic field produced by step pole pieces. Gradients from 5 gauss/inch to 500 gauss/inch in magnetic fields below 5000 gauss were measured. The usefulness of the instrument is still uncertain owing to errors caused by excessive field dependence of the gradient voltage.</p>
dc.format.mimetype	application/pdf
dc.identifier	archive/lib.dr.iastate.edu/ameslab_iscreports/108/
dc.identifier.articleid	1117
dc.identifier.contextkey	4809031
dc.identifier.s3bucket	isulib-bepress-aws-west
dc.identifier.submissionpath	ameslab_iscreports/108
dc.identifier.uri	https://dr.lib.iastate.edu/handle/20.500.12876/6701
dc.language.iso	en
dc.relation.ispartofseries	ISC-685
dc.source.bitstream	archive/lib.dr.iastate.edu/ameslab_iscreports/108/17_01_00_05_AmesLab_ISC_0685_o.pdf\|\|\|Fri Jan 14 18:28:07 UTC 2022
dc.subject.disciplines	Engineering
dc.subject.disciplines	Physics
dc.subject.keywords	Ames Laboratory
dc.title	Measurement of magnetic field gradients by the hall effect
dc.type	article
dc.type.genre	report
dspace.entity.type	Publication
relation.isOrgUnitOfPublication	25913818-6714-4be5-89a6-f70c8facdf7e

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