Index of content:
Volume 80, Issue 1, January 2009
- ELECTRONICS; ELECTROMAGNETIC TECHNOLOGY; MICROWAVES
80(2009); http://dx.doi.org/10.1063/1.3053166View Description Hide Description
A prototype small impact rotary motor has been fabricated based on a newly developed torsional actuator which is 15.0 mm long and 1.0 mm in diameter. The motor can rotate when it is powered with a saw-shaped voltage. The experimental results show that its angular speed is proportional to both the driving voltage’s amplitude and the frequency under 1 kHz. The large nonlinearity occurs at higher driving frequency due to the resonance of the partial mechanical structure of the motor. The motor can rotate at a speed of 90 rpm with a saw-shaped driving voltage of at 8 kHz, and produce a stall torque of with at 3 kHz.