Author: NASA

Description: An acoustic levitation system automatically adjust the sound frequency or chamber length to maintain the resonance necessary for levitation. Developed for containerless processing of materials at high temperatures, the system does not rely on microphones as resonance sensors, since microphones are difficult to fabricate for use at temperatures above 500°C. Instead, the system uses the acoustic transducer itself as a sensor. NASA Tech Brief. 8.5" X 11"

Item#: N0019488