Energy harvesting apparatus and methods for detecting a vibratory signal
US11326937B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 10, 2017 |
| Grant date | May 10, 2022 |
| Priority date | — |
| Expiry date | Jul 28, 2038 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10N30/01
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A vibration transducer module for detecting a vibratory signal, comprising a base, a spring connected to the base at a first location, a mass mechanically coupled to the spring at a second location remote from the first location, and a wall configured to position a first wall electrode and a second wall electrode a selected distance from the first location, the conductive element positioned and sized to contact the first wall electrode and the second wall electrode. The mass comprises a conductive element, and an energy harvester to provide a first voltage signal. The energy harvester may comprise a piezoelectric material or be construct as a SAW device. The module may be combined with a rectifier and an oscillator to form a vibration sensor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.