Аннотация:The main features of the design and circuitry of an ESG-based sensor intended to measure three angles of moving object (MO) rotations are discussed; also considered is the under lying physical basis, namely, generation of rotational and two-component reciprocating motion of an electrostatically suspended rotor with the use of a gyromotor and force transducer. The design solution is theoretically justified; a numerical example is given to prove its feasibility.