The effect of rotatability of measuring directions design on the precision of the determination of the anisotropy of magnetic susceptibility: Mathematical model study

0584012 - GLÚ 2025 RIV NL eng J - Journal Article
Hrouda, F. - Ježek, J. - Chadima, Martin
The effect of rotatability of measuring directions design on the precision of the determination of the anisotropy of magnetic susceptibility: Mathematical model study.
Physics of the Earth and Planetary Interiors. Roč. 349, April (2024), č. článku 107159. ISSN 0031-9201. E-ISSN 1872-7395
Institutional support: RVO:67985831
Keywords : Magnetic properties * Magnetic fabrics and anisotropy * Rock and mineral magnetism * Statistical methods
OECD category: Statistics and probability
Impact factor: 2.3, year: 2022
Method of publishing: Limited access
https://www.sciencedirect.com/science/article/pii/S0031920124000177?via%3Dihub

The precision of the measurement of the anisotropy of magnetic susceptibility (AMS) depends, in addition to other factors like accuracy of measurement of directional susceptibility and number of measuring directions, also on the orientation of the measuring design with respect to the specimen’s anisotropy. The last factor can be characterized by rotatability coefficient of the measuring design. We investigated through mathematical modelling of measuring process the effect of the rotatability coefficient on the error in the determination of degree of AMS, shape factor and principal directions. The effect is conspicuous in strongly non-rotatable designs with low number of measuring directions. It decreases with increasing rotatability and with increasing number of measuring directions. In designs with high number of directions this effect is small, virtually negligible from the practical point of view.
Permanent Link: https://hdl.handle.net/11104/0352675