Saturday 19 November 2011

ultrasonic motor's steps in engineering

FUTURE ENGINEERING

In office equipment such as printers and floppy disk drives, market research indicates that tiny motors smaller than 1 cm3 would be in large demand over the next ten years. However, using the conventional electromagnetic motor structure, it is rather difficult to produce a motor with sufficient energy efficiency. Piezoelectric ultrasonic motors, whose efficiency is insensitive to size, are superior in the mm-size motor area. There is today a large variety designs exploiting motion obtainable from the inverse piezoelectric effect. Ultrasonic piezomotors have a very special place among such devices .These motors achieve high speed and drive forces, while still permitting the moving part to be positioned with very high accuracy. Such characteristics make these motors of great interest for many
companies who make precision devices for which these drives are, in many cases, irreplaceable.

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