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Machine fluid sensor and method

Matsiev , L (2006) Machine fluid sensor and method. US 7,043,969 B2.

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    Abstract

    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 lllore 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.

    Item Type: Patent
    Uncontrolled Keywords: Sensors ; tuning fork ; fluid ; position ; resonator ; fluid sensing ; density ; machine oil ; lubricant
    Subjects: Q Science > QC Physics
    Departments: Faculty of Science and Technology > Physics
    ID Code: 59417
    Deposited By: ep_importer_pure
    Deposited On: 31 Oct 2012 15:28
    Refereed?: No
    Published?: Published
    Last Modified: 17 Sep 2013 10:12
    Identification Number: US 7,043,969 B2
    URI: http://eprints.lancs.ac.uk/id/eprint/59417

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