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. 17, 2012
Filed:
May. 23, 2008
Sébastien Legoll, Bourg les Valence, FR;
Patrice Guillard, Valence, FR;
Sébastien Legoll, Bourg les Valence, FR;
Patrice Guillard, Valence, FR;
Thales, , FR;
Abstract
The general field of the invention is that of resonating or vibrating devices. One of the tricky points with this type of device is that of correctly measuring the vibration frequency in a disturbed environment. The analysis system according to the invention is based on the use of the Hilbert transform of a function U representative of the position A of the vibrations of the device. More precisely, in its basic version, the analysis system comprises means making it possible to realize the second derivative of the function U denoted U, the Hilbert transform of the function U denoted V, the second derivative of this transform denoted Vas well as a function equal to this latter function being mathematically equal to the function with ωthe instantaneous angular frequency of U, ρthe instantaneous amplitude of U, ρthe second derivative of said instantaneous amplitude and being representative of the square of the resonant angular frequency Ω of the vibrating device. Several variants of this initial device are proposed.