Method of measuring amount of substances in an ambient noise environment

摘要

Embodiments of the invention include methods, devices, and systems that measure a volume of substance in a noise environment.

主权项

1. A method comprising:
transmitting an acoustic signal through a liquid substance within a container, the container being subject to an ambient noise, the acoustic signal being transmitted through a volume of the liquid substance prior to an interaction between the acoustic signal and a surface of the container; receiving the acoustic signal after a propagation of the acoustic signal through the volume of the liquid substance; reducing an ambient noise component of the acoustic signal; determining an acoustic signature of the acoustic signal having the reduced ambient noise component, wherein the acoustic signature is at least partially based upon a detected frequency spectrum of the acoustic signal propagated through the volume of the liquid substance; and determining a volume of the liquid substance in the container by comparing the acoustic signature with an acoustic signature of an acoustic signal propagated through a known volume of the liquid substance.