Portable magnetometer theodolite with fluxgate sensor for earth's magnetic field component measurements |
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| Authors: | J Bitterly J M Cantin R Schlich J Folques D Gilbert |
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| Institution: | (1) Institut de Physique du Globe, Université Louis Pasteur, 5 rue René Descartes, 67084 Strasbourg Cedex, France;(2) Institut de Physique du Globe, Université P. et M. Curie, 4 place Jussieu, 75230 Paris Cedex 05, France |
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| Abstract: | A new portable magnetometer theodolite with fluxgate sensor has been developed for measuring the components of the earth's magnetic field. With this instrument, used as a null detector, it is possible to make absolute measurements of declination (D) and inclination (I). The compensation of the main magnetic field allows direct intensity measurements (H, X, Y, Z components); in this case the calibration is made by reference to a proton magnetometer.The observation procedure is particularly easy and quick. The accuracy is better than 5 sec of arc forD andI and better than 1 nT for direct intensity measurements. |
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