Method for calculating transducer capacitance to determine transducer temperature
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Jul 18, 2006
Grant Date -
May 23, 2002
app pub date -
Oct 10, 2001
filing date -
Oct 20, 2000
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A method for calculating the capacitance of a transducer (C.sub.0) without knowing the exact resonance frequency of a transducer/blade combination is achieved by sweeping across a broad frequency range which contains resonant and non-resonant frequencies where C.sub.0 can be measured. A pre-defined frequency range is set independently of the resonance frequency of a specific transducer/blade combination. C.sub.0 of the transducer/blade is measured at several different frequencies within the pre-defined frequency range to ensure that invalid C.sub.0 measurements are disregarded, and the temperature of the transducer is calculated based on valid C.sub.0 measurements. The determined transducer temperature, based on C.sub.0 measurements, can be used to optimize performance and/or provide a safety shutdown mechanism for the generator.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Advertisement
Advertisement
Advertisement
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