An ultrasonic levitation device

Abstract

The invention discloses an ultrasonic levitation device, which comprises a transducer array, a concave spherical support, a driver, a controller and a DC stabilized power supply. The transducer array is arranged inside the concave spherical support, and each transducer in the transducer array The sound beam lines generated by the transducer pass through the spherical center of the concave spherical support. Each transducer in the transducer array is connected to a corresponding driver. The driver is fixed on the outside of the concave spherical support. All the drivers are connected to the controller. The controller and all the drivers are connected to provide DC voltage to the controller and all the drivers, and the transducer array constantly changes the phase of the transducer under the control of the controller to generate a vortex-shaped vortex sound field. The invention forms a vortex-like vortex sound field through the controller to continuously change the phase of the transducer, so that the object suspended in the center of the vortex sound field is not limited by the wavelength of the sound wave, and the object can be suspended stably.

Description

technical field [0001] The invention relates to a suspension device, in particular to an ultrasonic suspension device, which belongs to the field of ultrasonic array suspension. Background technique [0002] At present, most of the research on suspended objects in ultrasonic arrays at home and abroad is based on the principle of standing waves. Suspension devices are basically placed at the bottom of suspended objects, and accidental drop contamination of some liquid suspensions can also affect the performance of suspension devices in research applications. The size of objects that can be suspended by the ultrasonic levitation device using the principle of standing waves is limited by the wavelength of the sound wave, and its vertical structure is not conducive to the recovery and retesting of suspended particles. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide an ultrasonic levitation device, and the levitated ...

AI Technical Summary

Problems solved by technology

[0002] At present, most of the research on suspended objects in ultrasonic arrays at home and abroad is based on the principle of standing waves. The suspension device is basically placed at the bottom of the suspended object, and the accidental drop contamination of some liquid suspension will also affect the performance of the suspension device in research applications

The size of objects that can be suspended by the ultrasonic levitation device using the principle of standing waves is limited by the wavelength of the sound wave, and its vertical structure is not conducive to the recovery and retesting of suspended particles

Images