Micro motor
1. PiezoMotor AB are developing a small, adaptable micro motor called PiezoWave.
2. The technique is based upon piezo electricity, which in this case can be described as thin ceramic layers which will change shape when being subjected to a weak electric current.
3. By combining several layers and carefully monitoring the current's frequency, the motor can deliver a highly precise movement (in steps of 0,0005 mm).
4. The areas of usage can be as varied as auto focus/zoom for cellphone cameras, insulin pumps, electromechanical locks etc.
PiezoWave has many advantages when compared to a conventional electric motor: Small size (14 x 7 x 2 mm), low current consumption, low production costs, few moving parts, long life span and high precision.
The motor itself, without it's hull, weights 0,6 grams!

Material: Interview over the phone with a contact person at the company.
Tools: Illustrator to define the outlines. After that the work was moved to Photoshop for colouring, structures and shadows.

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