Control of equivalent shear rate in acoustic wave sensors
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
May 22, 2007
Grant Date -
Aug 31, 2006
app pub date -
May 9, 2006
filing date -
Dec 22, 2003
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An apparatus and a method for controlling the shear rate at which an acoustic wave device measures viscosity, by utilizing an automatic level control or an automatic gain control circuit to control power input to the sensor as a function of the sensor's output power. Further improvement is provided by measuring the input power and combining the input power and output power measurements, preferably by averaging, to control the input power to the sensor. A method is also provided for characterizing the fluid under test by providing a set of viscosity measurements at various shear rates.
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