G - Physics – 01 – D
Patent
G - Physics
01
D
G01D 5/353 (2006.01)
Patent
CA 2533272
A sensor array employs a parameter to induce a time-varying phase angle on an optical signal that comprises a phase generated carrier with a demodulation phase offset. An output signal from the sensor array is filtered to create a filtered signal. The phase angle is calculated independently of the demodulation phase offset through employment of the filtered signal.
L'invention concerne un ensemble de capteurs dans lequel un paramètre est utilisé pour introduire un angle de phase à variation temporelle dans un signal optique comprenant une porteuse à phase générée présentant un déphasage de démodulation. Le signal de sortie de l'ensemble de capteurs est filtré, de manière à produire un signal filtré. L'angle de phase est calculé indépendamment du déphasage de démodulation, à partir de ce signal filtré.
Kirby Eades Gale Baker
Northrop Grumman Corporation
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