公开(公告)号：US12298243B2

公开(公告)日：2025-05-13

申请号：US18318037

申请日：2023-05-16

Applicant: PLUME DESIGN, INC.

Inventor： Min-Feng Hsieh ,  Ta-Lung Lee ,  Shu-Hua Chang ,  Zhicheng Qiu

IPC: G01N21/55 ,  A61B5/024

Abstract: Systems and methods of embodiments of the present disclosure provide automated testing of PPG sensors using a programmatically controlled rotational actuator. The rotational actuator may include one or more light reflecting surfaces that can be actuated towards and away from the PPG sensor to simulate reflectivity of the tissue of a subject. Particular heart rates, heart rate variabilities and/or other physiological behaviors may be simulated based on actuations patterns, including, e.g., frequency, range of actuation, or variations thereof, among other actuation pattern characteristics. Based on the output signal produced by the PPG sensor in response to the actuation pattern, the PPG sensor may be assessed for accuracy and/or sensitivity to ensure quality.