Optical sensor arrangement and method for measuring an observable

The invention relates to an optical sensor arrangement (1) for measuring at least two observables, the arrangement comprising: a light generation circuit (2) including a light source (21) for generating light and an optical resonance circuit including a first and a second cascade circuit, the first...

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Bibliographic Details
Main Authors LÜTZOW, PETER, PERGANDE, DANIEL, HEIDRICH, HELMUT, ZAMORA GOMEZ, ALETHEA VANESSA
Format Patent
LanguageEnglish
French
German
Published 25.06.2014
Subjects
INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES
MEASURING
PHYSICS
TESTING
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Summary:The invention relates to an optical sensor arrangement (1) for measuring at least two observables, the arrangement comprising: a light generation circuit (2) including a light source (21) for generating light and an optical resonance circuit including a first and a second cascade circuit, the first cascade circuit (3) including at least a first cascade optical resonator, FCOR (31), and the second cascade circuit (6) including at least a first and a second optical resonator (61, 62), wherein a first optical length of the first optical resonator and a second optical length of the second optical resonator are variable depending on different observables. Furthermore, light exiting the second cascade circuit is coupled to a detector unit (9) including at least one photosensitive element (91). A control unit (10) is configured to selectively modulate or switch an optical length or an amplitude of light passing through the first or second optical resonator.
Bibliography:Application Number: EP20120198075