V.F. Fateev, A.O. Dolgodush FSUE “VNIIFTRI”, Mendeleevo, Moscow regionfateev@vniiftri.ru,dolgodush@vniiftri.ru Al’manac of Modern Metrology № 3 (23) 2020, pages 171–177 The use of a mechanical vibration system of two orthogonal gravity-free rods with sensitive masses at the ends to determine the direction to a concentrated disturbing mass near the surface of the Earth is considered. The … Continue reading System of orthogonal gravity-free rods with end sensitive masses in anomalous gravitational field