公开(公告)号：US20210003484A1

公开(公告)日：2021-01-07

申请号：US16918308

申请日：2020-07-01

Applicant: MESO SCALE TECHNOLOGIES, LLC

Inventor： Pei-ming WU ,  Sandor KOVACS

IPC: G01N1/14 ,  G01N35/00 ,  G01V1/02 ,  G01V1/16

Abstract: Devices and methods for determining whether a contact of a liquid dispenser with a liquid based on sound and/or for determining a liquid volume in the liquid dispenser are provided. According to an embodiment, the liquid dispenser includes a sound generator and an acoustic sensor, and at least one of the sound generator or the acoustic sensor is disposed within the dispense chamber portion. According to an embodiment, the liquid dispenser includes a sound generator and an acoustic sensor, and further includes one or more side conduits, where at least one of the sound generator or the acoustic sensor is disposed within a cavity of a respective one of the one or more side conduits, wherein the cavity and a connector of each of the one or more side conduits are free from resonance within a frequency range of the sound sensed by the acoustic sensor.