Piezoelectric sensor comprising at least one pair of flexible sensitive elements of great length
US4984222A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jul 11, 1989 |
| Grant date | Jan 8, 1991 |
| Priority date | — |
| Expiry date | Jul 11, 2009 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10N30/302
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A piezoelectric sensor comprising at least one pair of flexible sensitive elements of great length whose respective electrodes are connected in parallel. The interconnection is provided by interlacing the sensitive elements so that the two electrodes of each of the flexible sensitive elements are alternately in electric contact with the two electrodes of at least one other sensitive element. The sensor may be formed by winding at least one pair of sensitive elements on a support in two spirals of opposite directions with interlacing. The chosen assembly method provides both good mechanical strength and simplifies the electric connections because of the multiple electric contacts between the electrodes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.