Accession Number:

ADA429583

Title:

Self-oscillating Ultrasonic Micro-motor and It's Application

Descriptive Note:

Corporate Author:

SEIKO INSTRUMENTS INC CHIBA (JAPAN)

Report Date:

2003-06-01

Pagination or Media Count:

13.0

Abstract:

We have developed an ultrasonic micro-motor, which is expected to be used in a broad range of fields. The ultrasonic micro-motor, which can be driven by a single signal and change the rotational direction of a rotor easily by only selecting the electrode to apply drive signal, can easily construct a self-oscillating circuit and simplify the drive circuit. We have also simplified the motor structure which is easy to miniaturize and mass-produce. We applied the ultrasonic micro-motor to some functions in watches and clocks. Furthermore we have tried precise positioning control with the ultrasonic micro-motor, and consequently its potential for the ultra-precision positioning has been revealed.

Subject Categories:

  • Electrical and Electronic Equipment

Distribution Statement:

APPROVED FOR PUBLIC RELEASE