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Journal of Sensors and Sensor Systems An open-access peer-reviewed journal
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Volume 5, issue 1
J. Sens. Sens. Syst., 5, 157–163, 2016
https://doi.org/10.5194/jsss-5-157-2016
© Author(s) 2016. This work is distributed under
the Creative Commons Attribution 3.0 License.

Special issue: Dresden Sensor Symposium 2015

J. Sens. Sens. Syst., 5, 157–163, 2016
https://doi.org/10.5194/jsss-5-157-2016
© Author(s) 2016. This work is distributed under
the Creative Commons Attribution 3.0 License.

Regular research article 10 May 2016

Regular research article | 10 May 2016

A compact readout platform for spectral-optical sensors

Roland Wuchrer1, Sabrina Amrehn2, Luhao Liu1, Thorsten Wagner2, and Thomas Härtling1 Roland Wuchrer et al.
  • 1Fraunhofer Institute for Ceramic Technologies and Systems IKTS, 01109 Dresden, Germany
  • 2Department of Chemistry, University of Paderborn, 33098 Paderborn, Germany

Abstract. The continuous monitoring of industrial and environmental processes is becoming an increasingly important aspect with both economic and societal impact. So far, spectral-optical sensors with their outstanding properties in terms of sensitivity and reliability have not been considered as a potential solution because of the cost-intensive and bulky readout hardware. Here we present a card-size, inexpensive, and robust readout platform based on a wavelength-sensitive photodiode. In test and characterization experiments we achieved a wavelength shift resolution of better than 0.1 nm and a detection limit of 0.001 AU for ratiometric measurements. We furthermore discuss the capability and current limitations of our readout unit in context with interrogation experiments we performed with a photonic crystal-based fluid sensor. In sum we expect the presented readout platform to foster the exploitation of spectral-optical sensor technology for gas monitoring, chemical analytics, biosensing and many others fields.

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Short summary
The continuous monitoring of industrial and environmental processes is becoming an increasingly important aspect with both economic and societal impact. To realize this task, spectral-optical sensors with their outstanding properties in terms of sensitivity and reliability are a potential solution. However, for exploiting these sensors in a cost- and energy-efficient sensing system, a miniaturized readout unit is needed. Here we present a card-size, inexpensive, and robust readout electronics.
The continuous monitoring of industrial and environmental processes is becoming an increasingly...
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