Fiber Bragg grating (FBG) sensors have been attracting interest within research and development since their invention. Dedicated measurement systems are essential for utilization of these sensors. Spectroscopic measurement systems have great commercial potential as well as scientific relevance. In the scope of this work, spectrometers for demodulation of FBG sensors have been designed and investigated. By working with these measurement systems in realistic surroundings new findings in the way different parameters influence measurement uncertainty could be derived. This work also provides new insights on the handling of variations of FBG’s signal shapes during measurements. Inadequacies concerning anti-aliasing in such systems are uncovered and a solution is offered. Besides this a CMOS detector is used in a spectroscopic FBG measurement system for the first time and a new combination of several multiplexing concepts is demonstrated.
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Fiber Bragg grating (FBG) sensors have been attracting interest within research and development since their invention. Dedicated measurement systems are essential for utilization of these sensors. Spectroscopic measurement systems have great commercial potential as well as scientific relevance. In the scope of this work, spectrometers for demodulation of FBG sensors have been designed and investigated. By working with these measurement systems in realistic surroundings new findings in the way di...
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