Sonar transducer having inertial inductor
US4035761A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Oct 20, 1975 |
| Grant date | Jul 12, 1977 |
| Priority date | — |
| Expiry date | Oct 20, 1995 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB06B1/0618
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A transducer assembly in which a transducer unit of a piezoelectric material which is rigidly held between a rear member and a front member, both of which are made to vibrate upon energizing the piezoelectric material. Inductive elements comprising copper conductors wound about iron cores and utilized in the tuning of the transducer assembly are rigidly connected to one or both of the members and may also be connected to the transducer unit itself to serve as a portion of the inertial mass which imparts a mechanical vibrational characteristic to the transducer assembly. In one embodiment of the invention, the rear member is provided with a void wherein there is nested an inductor having an inertia similar to that of the material removed from the rear member in forming the void.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.