专利内容由知识产权出版社提供
专利名称：OPTICAL EXTENSION SENSOR发明人：HAASE, Karl-Heinz,KREUZER,
Manfred,GÜNTHER, Bernd,SCHANZE,Thomas
申请号：EP09761471.3申请日：20090610公开号：EP2294374B1公开日：20140820
摘要：An optical extension sensor (1) contains a level planar carrier layer (8) on or inwhich at least one optical waveguide (6, 7) is arranged in a force-fitting manner, saidoptical waveguide having at least one section with a Bragg grating (2, 3) for detecting theextension, wherein a first optical waveguide has an index of refraction and the Bragggrating (2, 3) has a particular grating constant. At least one further, second opticalwaveguide (7) or optical waveguide section (7) with a Bragg grating (3), which is arrangedin a parallel manner, is also provided on or in the carrier layer (8). This second opticalwaveguide (7) is thermomechanically coupled to at least the first optical waveguide (6) orthe first optical waveguide section and has a different temperature coefficient of theindex of refraction to the first optical waveguide (6). The temperature-independentextension of the deformation body can be determined by measuring the two reflectedwavelengths and by means of the refraction with a linear system of equations.
代理机构：Staudte, Ralph
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