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:
Jul. 11, 2006
Filed:
Aug. 23, 2000
Dimitri Donskoy, Hoboken, NJ (US);
Nikolay Sedunov, Hoboken, NJ (US);
Edward A. Whittaker, Hoboken, NJ (US);
Dimitri Donskoy, Hoboken, NJ (US);
Nikolay Sedunov, Hoboken, NJ (US);
Edward A. Whittaker, Hoboken, NJ (US);
Stevens Institute of Technology, Hoboken, NJ (US);
Abstract
A method and apparatus () is provided which employs phase or amplitude modulated electromagnetic probing waves () (in optical or microwave frequency ranges or both) emitted toward a vibrating object (). The optical and/or microwave probing signals () remotely irradiate an object () of interest. The object () reflects and/or scatters the probing wave () toward a receiver (). The reflected/scattered modulated signal () is received with a remote sensor (receiver) (). Vibration causes additional phase modulation to the probing wave (). At the receiving end, the signal is demodulated to extract and analyze the vibration waveform (). The present invention can be utilized for nondestructive testing, monitoring of technological processes, structural integrity, noise and vibration control, mine detection, etc.