MAGNETIC-TO-MECHANICAL TRANSDUCER AND METHOD FOR ITS CONTROL Russian patent published in 1998 - IPC

FIELD: electric engineering, automation, setter of controlled movements. SUBSTANCE: device has magnetic system with main and additional controlled sources of magnetic field, core which is made from magnetostrictive material and executive body, which is kinetically connected to core. Main and additional controlled sources of magnetic field are mounted for generation of magnetic fields which intensity vectors are not parallel to each other in core region. Controlled sources of magnetic field are connected to power supply through commutator. Material of core provides residual magnetic striction. Method of device control involves alternation of coordinate of weight center of executive body by means of generation of main magnetic field in region of core and at least one alternation of intensity of this magnetic field in range between zero level to level which provides magnetic striction of core material saturation. Required position of weight center of executive body should be kept constant. Main magnetic field is generated from non-simultaneous pulses of non-parallel magnetic fields. Required position of weight center of executive body is kept for zero level of intensity of main magnetic field in region of core in period between said pulses of magnetic fields in range between maximal residual alternation of length of core. EFFECT: increased functional capabilities. 13 cl, 12 dwg