Please use this identifier to cite or link to this item: http://ir.library.ui.edu.ng/handle/123456789/9211
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dc.contributor.authorAdetoyinbo, A. A.-
dc.contributor.authorHammed, O. S.-
dc.contributor.authorOgunsua, B. O.-
dc.date.accessioned2024-05-17T12:42:45Z-
dc.date.available2024-05-17T12:42:45Z-
dc.date.issued2010-11-
dc.identifier.otherui_art_adetoyinbo_fabrication_2010-
dc.identifier.otherThe Pacific Journal o f Science and Technology 11(2), pp. 107-117-
dc.identifier.urihttp://ir.library.ui.edu.ng/handle/123456789/9211-
dc.description.abstractThe measurement of magnetic variations within the low frequency range of 0.1 to 40Hz requires a highly sensitive magnetometer. A magnetometer based on the induction coil principle was designed, simulated, and constructed in this research. The search coil was designed by winding 4,500 turns of insulated coil on PVC pipe with 3 silicon-iron strips mounted on the PVC for higher magnetic susceptibility. The sensory method of the coil is based on the faraday’s law of electromagnetic induction. The output of the coil was amplified and filtered with a band pass electronic system designed to pass the desired frequency range of 0.1 to 40Hz. A simple calibration system using the Helmoltz coil pair was designed for the calibration of the sensor to determine the conversion factor of the output root mean square (r.m.s.) voltage with the external magnetic field (Hs), since the Helmoltz coil can generate very uniform magnetic field up to 25% or more of the covered area from the centre axis. The output voltage and applied magnetic field obtained as the calibration data were fitted into a linear graph. A relatively high sensitivity of 299mv/pT was obtained.en_US
dc.language.isoenen_US
dc.subjectSearch coilen_US
dc.subjectSensoren_US
dc.subjectElectromagnetic induction and band passen_US
dc.titleFabrication of an induction coil magnetometer for geomagnetic field measurementen_US
dc.typeArticleen_US
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