Visyx Technologies, Inc.

Symyx Technologies, Inc.

Eric Low

Leonid Matsiev

James W Bennett

G Cameron Dales

Oleg Kolosov

Mikhail Spitkovsky

Mark Uhrich

John F Varni

Shenheng Guan

Daniel Meron Pinkas

Vladimir Gammer

Blake Walker

Dave Padowitz

John M Feland, Iii

William Rust

Fluid monitoring methods, systems and apparatus are disclosed, including a portable subassembly that is in electrical communication with a sensor in contact with the fluid being monitred. Preferred embodiments for the sensor include one or more flexural resonator sensing elements. In preferred embodiments the sensor subassembly is ported to multiple fluidic systems to monitor the fluid properties in an effecient manner.

Portable fluid sensing device and method

A sensor for sensing one or more properties of a vehicle fluid has a tuning fork resonator adapted to contact the fluid. The tuning fork resonator comprises two tines and is operable to oscillate so that the two tines move in opposite phase at a frequency of less than 1 MHz while contacting the fluid to generate a resonator response indicative of one or more properties of the fluid. In another aspect, a sensor includes a substrate and a flexural resonator on the substrate and adapted to contact the fluid. Circuitry for operation of the resonator is on the substrate. The resonator is adapted to receive an input signal and to oscillate while contacting the fluid to generate a resonator response indicative of one or more properties of the fluid. One suitable application for the invention is monitoring the condition of a vehicle engine oil.

Machine fluid sensor

A method for analyzing a fluid contained within a machine, comprising the steps of providing a machine including a passage for containing a fluid; placing a sensor including a mechanical resonator in the passage; operating the resonator to have a portion thereof translate through the fluid; and monitoring the response of the resonator to the fluid in the passage. A preferred sensor includes a tuning fork resonator.

Machine fluid sensor and method

Growing community of inventors

Berkeley, CA, United States of America

Eric Low