Response-based determination of piezoelectric transducer state
US11269067B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 5, 2018 |
| Grant date | Mar 8, 2022 |
| Priority date | — |
| Expiry date | Aug 29, 2040 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S15/931
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Piezoelectric sensor controllers may facilitate detection and identification of various potential fault states with parameter measurements. In an illustrative embodiment of a piezoelectric-based sensor having response-parameter-based fault diagnosis, the sensor includes a piezoelectric transducer and a controller. The controller drives the piezoelectric transducer to generate bursts of acoustic energy and, based on a response of the piezoelectric transducer to said driving, identifies a corresponding transducer state from a set of potential states including multiple transducer fault states. An illustrative embodiment of a sensing method having fault diagnosis, the method includes: driving a piezoelectric transducer to generate a burst of acoustic energy; monitoring a response of the piezoelectric transducer to said driving; identifying, based on said response, a corresponding transducer state from a set of potential states including multiple transducer fault states; and if the transducer state is a fault state, reporting that fault state.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.