Patents by Inventor Jaroslava Wilcox

Jaroslava Wilcox has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • High resolution and large dynamic range resonant pressure sensor based on Q-factor measurement
    Patent number: 6085594
    Abstract: A pressure sensor has a high degree of accuracy over a wide range of pressures. Using a pressure sensor relying upon resonant oscillations to determine pressure, a driving circuit drives such a pressure sensor at resonance and tracks resonant frequency and amplitude shifts with changes in pressure. Pressure changes affect the Q-factor of the resonating portion of the pressure sensor. Such Q-factor changes are detected by the driving/sensing circuit which in turn tracks the changes in resonant frequency to maintain the pressure sensor at resonance. Changes in the Q-factor are reflected in changes of amplitude of the resonating pressure sensor. In response, upon sensing the changes in the amplitude, the driving circuit changes the force or strength of the electrostatic driving signal to maintain the resonator at constant amplitude.
    Type: Grant
    Filed: September 4, 1998
    Date of Patent: July 11, 2000
    Assignee: The United States of America as represented by the Administrator of the National Aeronautics and Space Administration
    Inventors: Roman C. Gutierrez, Christopher B. Stell, Tony K. Tang, Vatche Vorperian, Jaroslava Wilcox, Kirill Shcheglov, William J. Kaiser