Piezoelectric crystal microbalance device
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Dec 28, 1999
Grant Date -
N/A
app pub date -
Sep 25, 1997
filing date -
May 4, 1995
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A device and a process for measuring resonant frequency and dissipation factor of a piezoelectric resonator are presented. After exciting the resonator to oscillation, the driving power to the oscillator is turned off after the decay of the oscillation of the resonator is recorded and used to give a measure of at least one of the resonators properties, such as dissipation factor, changes in the dissipation factor, resonant frequency and changes in the resonant frequency.
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