Using Piezoelectric actuators.
Using Piezoelectric actuators.
My research started with using Piezoelectric actuators. They are an excellent match with small polymeric fans. The small deflection, low force and low power are a really nice match. However, when I experimented with metallic fan blades and increasing the size of the fan, I could tell that I was limited by the deflection, force and power of these actuators. I purchased the most powerful actuators I could find https://www.thorlabs.com/newgrouppage9. ... p_id=10958 and https://www.piezodrive.com/actuators/pi ... actuators/ . These could only hint at the performance that the steel fans were capable of, so I had to abandon them for electromagnetic motors.