Noninvasive birefringence compensated sensing polarimeter

Details Noninvasive birefringence compensated sensing polarimeter Noninvasive birefringence compensated sensing polarimeter

G - Physics

01

N

G01N 21/21 (2006.01) A61B 3/10 (2006.01) A61B 5/1455 (2006.01) G01N 21/23 (2006.01)

Patent

CA 2551114

The present invention relates to a system and method for compensating for the effects of birefringence in a given sample and employs an optical birefringence analyzer to sense the real-time birefringence contributions and then provides a feedback signal to a compound electro-~optical system that negates the birefringence contributions found in the given sample. The birefringence contribution vanishes, thus significantly reducing the main error component for polarimetric measurements.

La présente invention concerne un système et un procédé de compensation des effets de la biréfringence dans un échantillon donné. Le système selon l'invention fait intervenir un analyseur de biréfringence optique destiné à détecter les effets de la biréfringence en temps réel et à fournir un signal de rétroaction à un système électro-optique combiné annulant les effets de la biréfringence détectés dans l'échantillon donné. Lorsque les effets de la biréfringence sont annulés, la composante d'erreur principale de mesures polarimétriques diminue considérablement.

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