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    Practical Driving Electronics for an AOTF-Based NO₂ Camera

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    Authors
    Vanhamel, J.
    Berkenbosch, S.
    Dekemper, E.
    Leroux, P.
    Neefs, E.
    Van Lil, E.
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    Discipline
    Physical sciences
    Subject
    Radio frequency
    Instruments
    Optical imaging
    Generators
    Optical diffraction
    Optical polarization
    Atmospheric measurements
    Acoustooptical tunable filter (AOTF)
    imaging system
    NO₂
    phase-locked loop (PLL)
    radio frequency (RF)
    spectroscopy
    Audience
    Scientific
    Date
    2019
    Metadata
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    Description
    The measurement of NO 2 abundance in the air is of interest for monitoring pollution sources and air quality. A new instrumental concept has been recently introduced, which makes use of an acoustooptical tunable filter (AOTF) as the main component of a spectral imager. With the capability of resolving the absorption spectrum of NO 2 , and a high spatial and temporal sampling, this instrument can be seen as a NO 2 camera. In this instrument, the selection of different optical wavelengths by the AOTF is done by applying a radio frequency (RF) signal to the AOTF. The selected frequency and the applied amplitude are the key parameters for the quality of the measurements. The design and assembly of an RF chain, consisting of an RF generator and RF amplifier, will lead to an electronics bench capable of driving the NO 2 camera. In view of a potential spaceborne application of this instrumental concept, the design of the RF generator is only making use of space-qualified components. This paper focuses on the development of this part of the electronics bench.
    Citation
    Vanhamel, J.; Berkenbosch, S.; Dekemper, E.; Leroux, P.; Neefs, E.; Van Lil, E. (2019). Practical Driving Electronics for an AOTF-Based NO₂ Camera. , IEEE Transactions on Instrumentation and Measurement, Vol. 68, Issue 3, 874-881, DOI: 10.1109/TIM.2018.2853898.
    Identifiers
    uri: https://orfeo.belnet.be/handle/internal/7168
    doi: http://dx.doi.org/10.1109/TIM.2018.2853898
    Type
    Article
    Peer-Review
    Yes
    Language
    eng
    Links
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