Active Hyperspectral Sensor Based on MEMS Fabry-Pérot Interferometer
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...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2019-05-01
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| Series: | Sensors |
| Subjects: | |
| Online Access: | https://www.mdpi.com/1424-8220/19/9/2192 |
| _version_ | 1818007926124576768 |
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| author | Teemu Kääriäinen Priit Jaanson Aigar Vaigu Rami Mannila Albert Manninen |
| author_facet | Teemu Kääriäinen Priit Jaanson Aigar Vaigu Rami Mannila Albert Manninen |
| author_sort | Teemu Kääriäinen |
| collection | DOAJ |
| description | 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-Pérot 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. |
| first_indexed | 2024-04-14T05:22:15Z |
| format | Article |
| id | doaj.art-25d6b565c2aa4a1ebd5107a2733c227d |
| institution | Directory Open Access Journal |
| issn | 1424-8220 |
| language | English |
| last_indexed | 2024-04-14T05:22:15Z |
| publishDate | 2019-05-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Sensors |
| spelling | doaj.art-25d6b565c2aa4a1ebd5107a2733c227d2022-12-22T02:10:07ZengMDPI AGSensors1424-82202019-05-01199219210.3390/s19092192s19092192Active Hyperspectral Sensor Based on MEMS Fabry-Pérot InterferometerTeemu Kääriäinen0Priit Jaanson1Aigar Vaigu2Rami Mannila3Albert Manninen4VTT Technical Research Centre of Finland Ltd, Vuorimiehentie 3, 02150 Espoo, FinlandVTT Technical Research Centre of Finland Ltd, Vuorimiehentie 3, 02150 Espoo, FinlandVTT Technical Research Centre of Finland Ltd, Vuorimiehentie 3, 02150 Espoo, FinlandVTT Technical Research Centre of Finland Ltd, Vuorimiehentie 3, 02150 Espoo, FinlandVTT Technical Research Centre of Finland Ltd, Vuorimiehentie 3, 02150 Espoo, FinlandAn 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-Pérot 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.https://www.mdpi.com/1424-8220/19/9/2192hyperspectrallidarremote sensingsupercontinuumFPI |
| spellingShingle | Teemu Kääriäinen Priit Jaanson Aigar Vaigu Rami Mannila Albert Manninen Active Hyperspectral Sensor Based on MEMS Fabry-Pérot Interferometer Sensors hyperspectral lidar remote sensing supercontinuum FPI |
| title | Active Hyperspectral Sensor Based on MEMS Fabry-Pérot Interferometer |
| title_full | Active Hyperspectral Sensor Based on MEMS Fabry-Pérot Interferometer |
| title_fullStr | Active Hyperspectral Sensor Based on MEMS Fabry-Pérot Interferometer |
| title_full_unstemmed | Active Hyperspectral Sensor Based on MEMS Fabry-Pérot Interferometer |
| title_short | Active Hyperspectral Sensor Based on MEMS Fabry-Pérot Interferometer |
| title_sort | active hyperspectral sensor based on mems fabry perot interferometer |
| topic | hyperspectral lidar remote sensing supercontinuum FPI |
| url | https://www.mdpi.com/1424-8220/19/9/2192 |
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