公开(公告)号：US20250012619A1

公开(公告)日：2025-01-09

申请号：US18763337

申请日：2024-07-03

Applicant: University of Washington

Inventor： Joshua R. Smith ,  Jared Nakahara

IPC: G01G5/00 ,  G01G23/01 ,  G01G23/06 ,  G01N29/22

Abstract: Acoustic balances configured for weighing in ultrasonic non-contact manipulators, and associated systems and methods are described. In one embodiment, a method for a non-contact acoustic determination of a mass of an object includes capturing the object within an acoustic trap of an acoustic balance. The method also includes, in response to changing at least one acoustic parameter of the acoustic balance, changing an equilibrium position of the object; and in response to changing the equilibrium position of the object, causing the object to oscillate. The method also includes determining a resonant frequency of oscillation of the object; and based on the resonant frequency of oscillation of the object, determining the mass of the object.

公开(公告)号：US20230045959A1

公开(公告)日：2023-02-16

申请号：US17798267

申请日：2021-02-12

Applicant: University of Washington

Inventor： Joshua R. Smith ,  Jared Nakahara ,  Boling Yang

IPC: G10K15/00 ,  G10K11/35 ,  G10K11/34 ,  B25J15/00

Abstract: System and method for non-contact manipulation of objects via ultrasonic levitation are presented herein. In one embodiment, a method for a non-contact manipulation of an object includes: generating ultrasound field by an array of ultrasound transducers; lifting the object off a dispensing device by the ultrasound field; and levitating the object by the ultrasound field.