Active Hyperspectral Sensor Based on MEMS Fabry-Pérot Interferometer
| Autor: | Kääriäinen, Teemu, Jaanson, Priit, Vaigu, Aigar, Mannila, Rami, Manninen, Albert |
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| Jazyk: | angličtina |
| Rok vydání: | 2019 |
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| Zdroj: | Kääriäinen, T, Jaanson, P, Vaigu, A, Mannila, R & Manninen, A 2019, ' Active Hyperspectral Sensor Based on MEMS Fabry-Pérot Interferometer ', Sensors, vol. 19, no. 9, 2192 . https://doi.org/10.3390/s19092192 Sensors, Vol 19, Iss 9, p 2192 (2019) Sensors (Basel, Switzerland) Sensors Volume 19 Issue 9 |
| DOI: | 10.3390/s19092192 |
| Popis: | An active hyperspectral sensor (AHS) was developed for target detection and classification applications. AHS measures light scattered from a target, illuminated by a broadband near-infrared supercontinuum (SC) light source. Spectral discrimination is based on a voltage-tunable MEMS Fabry-Pé rot Interferometer (FPI). The broadband light is filtered by the FPI prior to transmitting, allowing for a high spectral-power density within the eye-safety limits. The approach also allows for a cost-efficient correction of the SC instability, employing a non-dispersive reference detector. A precision of 0.1% and long-term stability better than 0.5% were demonstrated in laboratory tests. The prototype was mounted on a car for field measurements. Several road types and objects were distinguished based on the spectral response of the sensor targeted in front of the car. |
| Databáze: | OpenAIRE |
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