Measuring and testing – Liquid analysis or analysis of the suspension of solids in a... – Lubricant testing
Reexamination Certificate
2007-11-13
2007-11-13
Williams, Hezron (Department: 2856)
Measuring and testing
Liquid analysis or analysis of the suspension of solids in a...
Lubricant testing
C073S054010
Reexamination Certificate
active
11244594
ABSTRACT:
An oil quality sensor system comprise an acoustic wave viscosity and an etch rate sensor. The etch rate sensor system includes a piezoelectric substrate and one or more sensing layers configured upon the piezoelectric substrate. A layer of gold is generally configured above the sensing layer(s), such that the gold layer provides protection to the sensing layer(s), thereby extending the operating life of the resulting etch rate sensor system. The sensing layer(s) generally comprises one or more reactive electrodes. The etch rate sensor system can be adapted for use in a permanent oil quality sensor application.
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Liu James Z T
Rahman Aziz
Rhodes Michael L.
Honeywell International , Inc.
Lambrinos Matthew F.
Lopez Kermit D.
Ortiz Luis M.
Saint-Surin Jacques M.
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