Textured-surface quartz resonator fluid density and viscosity monitor

Patent · Tue Aug 25 00:00:00 EDT 1998

OSTI ID:871800

Martin, Stephen J ^[1]; Wiczer, James J ^[1]; Cernosek, Richard W ^[1]; Frye, Gregory C ^[2]; Gebert, Charles T ^[1]; Casaus, Leonard ^[3]; Mitchell, Mary A ^[4]

---

1. Albuquerque, NM
2. Cedar Crest, NM
3. Bernalillo, NM
4. Tijeras, NM

A pair of thickness-shear mode resonators, one smooth and one with a textured surface, allows fluid density and viscosity to be independently resolved. A textured surface, either randomly rough or regularly patterned, leads to trapping of liquid at the device surface. The synchronous motion of this trapped liquid with the oscillating device surface allows the device to weigh the liquid; this leads to an additional response that depends on liquid density. This additional response enables a pair of devices, one smooth and one textured, to independently resolve liquid density and viscosity; the difference in responses determines the density while the smooth device determines the density-viscosity product, and thus, the pair determines both density and viscosity.

• Research Organization: Sandia National Laboratories (SNL), Albuquerque, NM, and Livermore, CA (United States)
• Assignee: Sandia Corporation (Albuquerque, NM)
• Patent Number(s): US 5798452
• Application Number: 08/846,085
• OSTI ID: 871800
• Country of Publication: United States
• Language: English

Related Subjects

textured-surface
quartz
resonator
fluid
density
viscosity
monitor
pair
thickness-shear
mode
resonators
smooth
textured
surface
allows
independently
resolved
randomly
regularly
patterned
leads
trapping
liquid
device
synchronous
motion
trapped
oscillating
weigh
additional
response
depends
enables
devices
resolve
difference
responses
determines
density-viscosity
product
device surface
surface allows
fluid density
textured surface
quartz resonator
oscillating device
allows fluid
liquid density
resonator fluid
mode resonators
density-viscosity product
viscosity monitor
thickness-shear mode
independently resolve
independently resolved
/73/