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:
Jan. 01, 2013
Filed:
Aug. 03, 2011
Eric K. Walton, Columbus, OH (US);
Yakup Bayram, Dublin, OH (US);
Orbay Tuncay, Emmaus, PA (US);
Bruce G. Montgomery, Glenwood, MD (US);
Gary W. Bruce, Severna Park, MD (US);
Douglas E. Crowe, Herdon, VA (US);
Steven E. Gemeny, Finksburg, MD (US);
Eric K. Walton, Columbus, OH (US);
Yakup Bayram, Dublin, OH (US);
Orbay Tuncay, Emmaus, PA (US);
Bruce G. Montgomery, Glenwood, MD (US);
Gary W. Bruce, Severna Park, MD (US);
Douglas E. Crowe, Herdon, VA (US);
Steven E. Gemeny, Finksburg, MD (US);
The Ohio State University, Columbus, OH (US);
Syntonics, LLC, Columbia, MD (US);
Abstract
A method for determining a physical property of an object or fluid in a dynamic multi-path clutter environment comprises transmitting an RF interrogation signal to a wireless sensor physically coupled to the object or fluid (gas or liquid) in the dynamic multi-path clutter environment, wherein the wireless sensor is operable to receive the RF interrogation signal, produce a reference signal and a measurement signal, and retransmit the reference signal and the measurement signal in the dynamic multi-path clutter environment. The reference signal and measurement signal are delayed by the wireless sensor by an amount of time that may be a function of the unknown physical property. The method also comprises receiving the retransmitted reference signal and the retransmitted measurement signal and comparing them in the time domain in order to determine the unknown physical property of the object or fluid. The method further comprises setting the time delays of the retransmitted reference and retransmitted measurement signals to be long enough for the ringdown time to be over but not so long so that the differential time is distorted by the dynamics of the system.