Acoustophoretic separation technology using multi-dimensional standing waves

• Main Authors: Kennedy, III, Thomas J, Dionne, Jason, Lipkens, Bart, Presz, Jr., Walter M
• Format: Patent
• Language: English
• Published: 28.07.2020
• Subjects: APPARATUS FOR ENZYMOLOGY OR MICROBIOLOGY; BEER; BIOCHEMISTRY; CHEMISTRY; COMPOSITIONS THEREOF; CULTURE MEDIA; ELECTRICITY; ENZYMOLOGY; FOR PERFORMING MECHANICAL WORK IN GENERAL; GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL; METALLURGY; METHODS OR APPARATUS FOR GENERATING OR TRANSMITTING MECHANICALVIBRATIONS OF INFRASONIC, SONIC, OR ULTRASONIC FREQUENCY; MICROBIOLOGY; MICROORGANISMS OR ENZYMES; MUTATION OR GENETIC ENGINEERING; PERFORMING OPERATIONS; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL; PROPAGATING, PRESERVING OR MAINTAINING MICROORGANISMS; SEPARATION; SPIRITS; TRANSPORTING; VINEGAR; WINE

A system having improved trapping force for acoustophoresis is described where the trapping force is improved by manipulation of the frequency of the ultrasonic transducer. The transducer includes a ceramic crystal. The crystal may be directly exposed to fluid flow. The crystal may be air backed, resulting in a higher Q factor.