| 摘要 |
PCT No. PCT/RU97/00169 Sec. 371 Date Feb. 20, 1998 Sec. 102(e) Date Feb. 20, 1998 PCT Filed Jun. 2, 1997 PCT Pub. No. WO97/47076 PCT Pub. Date Dec. 11, 1997A piezoelectric stepping motor comprising a cylindrical housing 1, a stator (2) and a rotor (3). The stator (2) comprises at least two rotary-fixing piezoelectric units (4, 5) arranged inside the housing (1) one after another in a longitudinal plane. Each piezoelectric unit (4, 5) comprises a rotary piezoelectric cell (6) a fixing piezoelectric cell (7), insulators (8) and a friction member (9). |
