Vibrating cylinder transducer with protective coating
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United States of America Patent
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Issued Date -
Oct 20, 2011
app pub date -
Apr 14, 2011
filing date -
Apr 14, 2010
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
The invention provides a vibrating cylinder transducer for measuring the pressure or density of a fluid medium comprising: a cylindrical vibrator, in use having at least one surface coupled to a fluid medium to be measured; a drive means for vibrating the cylindrical vibrator; a sensor for detecting the resonant frequency of the cylindrical vibrator; and an output coupled to the sensor, the output configured to provide an output signal indicative of the pressure and/or the density of the fluid medium; wherein the surface coupled to the fluid medium is coated in a corrosion resistant polymer layer. Preferably the corrosion resistant polymer layer is formed from parylene.
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