Method of making a transducer from a boule of lithium tetraborate and transducer so made
US4990818A · kind A · utility
4Cited by
5References
2Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 23, 1989 |
| Grant date | Feb 5, 1991 |
| Priority date | — |
| Expiry date | Oct 23, 2009 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10N30/8542
Abstract
An improved transducer is obtained by providing a plate of lithium tetrabte with a doubly rotated orientation of .phi..congruent.17.degree. to 21.degree. and .theta..congruent.54.degree. to 58.degree. where doubly rotated orientations are described by the IEEE notation widely known in the art as (YXwl).phi./.theta..
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.