公开(公告)号：US20210254972A1

公开(公告)日：2021-08-19

申请号：US17169331

申请日：2021-02-05

Applicant: UWM Research Foundation, Inc.

Inventor： Marcia Renata Quadros da Silva ,  Sachin Davis ,  Adibi Yasaman

IPC: G01B17/02

Abstract: A system for detecting the presence of biofilm on an inner surface of a body used for containing a fluid medium. The system includes a transmitter disposed at a first location external to the body, a receiver located at a second location external to the body, and an electronic controller. The electronic controller configured to control the transmitter to transmit an ultrasonic signal in a direction towards the body and receive, via the receiver, an attenuated signal that is the ultrasonic signal after passing through the body. The electronic controller is configured to determine a phase shift between the ultrasonic signal and the attenuated ultrasonic signal, determine an amplitude difference between the ultrasonic signal and the attenuated ultrasonic signal, and generate an indication of an amount of biofilm present on the inner surface of the body based on the phase shift and the amplitude difference.