Not so, if you use a pair of specialised ultrasonic transducer arrays to move the air instead! (Video, embedded below) Three banks of thrusters provide a 180 degree steerable net force Details are ...

[Lindsay] has a wonderful writeup about a new toy in the shop, an ultrasonic transducer. The 28kHz, 70W bolt-clamped Langevin transducer by itself is not much use, you need a power supply ...

Description: The heart of every Lewis machine, our magnetostrictive transducers are designed for heavy duty, continuous operation. They can run hot or cold and withstand tremendous shock. Standard ...

NDK has manufactured and sold synthetic crystals and various products using the crystal such as crystal units, crystal oscillators, crystal filters, SAW filters, optical parts and other applied ...