Patents Represented by Attorney William E. Eshleman

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  • Optically-based pressure sensor having temperature compensation
    Patent number: 5912457
    Abstract: A pressure sensor includes two birefringent media, one of which is exposed o pressure to undergo pressure-variable birefringence. Polarized light passes through the birefringent media to be modulated in accordance with the pressure and is then made incident on a photodetector to detect the modulation. The use of two birefringent media provides temperature compensation.
    Type: Grant
    Filed: December 30, 1996
    Date of Patent: June 15, 1999
    Assignee: The United States of America as represented by the Secretary of the Army
    Inventor: Michael McQuaid