公开(公告)号：US10724897B2

公开(公告)日：2020-07-28

申请号：US15736046

申请日：2016-06-16

Applicant: Wayne State University

Inventor： Yong Xu ,  Yating Hu ,  Hongen Tu

IPC: G01H11/08 ,  A61B5/11 ,  A61B5/00 ,  G01P15/09

Abstract: This disclosure describes a sensor for detecting vibrations, particularly low-frequency vibrations. The sensor is of a cascaded gapped cantilever construction and may include a single sensing beam extending from a base to a proof mass across the plurality of gaps, a mechanical beam opposite the piezoelectric beam. The sensor may be included in a system including a housing, a support, and electronic components for converting and measuring signal. The sensor may be mounted to an item of furniture, such as a bed or a sofa, and measure physiological data including ballistocardiogram and respiratory data of a subject positioned on the furniture.

公开(公告)号：US20180172503A1

公开(公告)日：2018-06-21

申请号：US15736046

申请日：2016-06-16

Applicant: Wayne State University

Inventor： Yong Xu ,  Yating Hu ,  Hongen Tu

IPC: G01H11/08 ,  A61B5/11 ,  A61B5/00

CPC classification number: G01H11/08 ,  A61B5/1102 ,  A61B5/4809 ,  A61B5/6892 ,  G01P15/09 ,  G01P15/0922

Abstract: This disclosure describes a sensor for detecting vibrations, particularly low-frequency vibrations. The sensor is of a cascaded gapped cantilever construction and may include a single sensing beam extending from a base to a proof mass across the plurality of gaps, a mechanical beam opposite the piezoelectric beam. The sensor may be included in a system including a housing, a support, and electronic components for converting and measuring signal. The sensor may be mounted to an item of furniture, such as a bed or a sofa, and measure physiological data including ballistocardiogram and respiratory data of a subject positioned on the furniture.