| 摘要 |
<p>A progressive wave motor has a vibrator unit (10) comprising a resilient member (2) which is secured to and supported by a centre shaft (7), a piezo-electric vibrator (3) connected to one side of and disposed concentrically of the resilient member (2) so as in operation to effect vibration of the latter in a primary vibration mode, a movable member (1) which is in pressure contact with the vibrator unit (10) so as to be moved thereby as a result of the said vibration, at least one electrode (3a) on the piezo-electric vibrator (3), and an electrical lead (4) for the or each electrode (3a), the or each lead (4) being connected to the respective electrode (3a) for the transmission of an electrical input signal to the piezo-electric vibrator (3). The motor is characterised in that the or each lead (4) is connected to its respective electrode (3a) at a point within the radially inner half of the piezo-electric vibrator (3).</p> |
