The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 27, 2018
Filed:
Jul. 07, 2011
Rajakkannu Mutharasan, West Chester, PA (US);
Blake N. Johnson, Philadelphia, PA (US);
Ramji S. Lakshmanan, Dublin, IE;
Harsh Sharma, Jersey City, NJ (US);
Rajakkannu Mutharasan, West Chester, PA (US);
Blake N. Johnson, Philadelphia, PA (US);
Ramji S. Lakshmanan, Dublin, IE;
Harsh Sharma, Jersey City, NJ (US);
Drexel University, Philadelphia, PA (US);
Abstract
An asymmetric sensor having asymmetric electrodes and/or being asymmetrically anchored provides enhanced sensitivity. In example embodiments, part of the electrode on a sensor is etched or removed resulting in enhanced mass-change sensitive resonant modes. In another example embodiment, a sensor is anchored asymmetrically, also resulting in enhanced mass-change sensitive resonant modes. By asymmetrically anchoring a piezoelectric portion of a sensor, resonant bending modes of the sensor can be measured electrically without external instrumentation. Modifying the electrode of a piezoelectric cantilever enables expression of mass-change sensitive resonant modes that normally do not lend themselves to electrical measurement.