Computational algorithms are developed for azimuth, zenith and apsidal angles.
Gormakov Anatoly, Kharitonov Mikhail, Prygov Andrey 2017, 'Sensor module for testing magnetometric borehole inclinometers under field conditions',MATEC Web of Conferenceshttps://doi.org/10.1051/matecconf/201710201017. Retrieved from DOAJ CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)