Optical measuring method and device for measuring a magnetic...

Details Optical measuring method and device for measuring a magnetic... Optical measuring method and device for measuring a magnetic...

G - Physics

01

R

G01R 33/032 (2006.01) G01R 15/24 (2006.01)

Patent

CA 2243211

After passing through a Faraday sensor arrangement (3), light (L) to be measured, which is polarized in a linear manner, is divided into two partial light signals (L1, L2) with polarization planes inclined at 45~. A measuring signal (M) which is proportional to the tangent of the Faraday angle of rotation is derived from the two partial light signals.

Un faisceau de lumière polarisée linéaire de mesure (L) est divisé, après avoir traversé un dispositif détecteur Faraday (3), en deux signaux partiels lumineux (L1, L2) dont les plans de polarisation sont inclinés à 45·. A partir des deux signaux partiels lumineux est dérivé un signal de mesure (M) qui est proportionnel à la tangente de l'angle de rotation de Faraday.

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