Frequency agile sonic transducer
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Nov 24, 1992
Grant Date -
N/A
app pub date -
Jun 24, 1991
filing date -
Jun 24, 1991
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A solid-state tunable transducer has been developed by incorporating an elastically nonlinear material, silicone rubber, into an electroacoustic transducer made from piezoelectric ceramics. The resonant frequency and mechanical Q of the transducer are tuned mechanically by applying a uniaxial compressive stress to the composite. The resonant frequency is tuned electrically by placing a piezoelectric actuator into the composite and varying the magnitude of the d.c. bias.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully