Patent · US Active

Cascaded gapped cantilever for low-frequency vibration sensing

US10724897B2 · kind B2 · utility

1Cited by
3References
20Claims
0Family size

Assignee

Inventors

Key dates

Filing dateJun 16, 2016
Grant dateJul 28, 2020
Priority date—
Expiry dateJun 16, 2036

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG01P15/0922
  • WIPO fieldMeasurement
  • WIPO sectorInstruments

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.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.