Mr. David Escribano Profile

David Escribano

at INTA Instituto Nacional de Tecnica Aerospacial

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Author

Publications (5)

Proceedings Article | 27 August 2022 Poster + Paper

PLATO focal plane assembly (FPA) qualification model (QM): an innovative real-time metrology

J. Cabrero, A. Valverde, G. Ramos, M. Rodrigo, L. Gómez-Zazo, Luis González, J. Mas-Hesse, A. Balado, M. Pajas, P. Gallego, M. Alcacera, I. Catalán, D. Escribano, I. Muñoz, S. Martin

Proceedings Volume 12180, 121804Q (2022) https://doi.org/10.1117/12.2629786

KEYWORDS: Staring arrays, Charge-coupled devices, Aluminum nitride, Optical alignment, Metrology, Manufacturing, Iterated function systems, Content addressable memory, Titanium, Silicon

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Proceedings Article | 9 September 2019 Presentation + Paper

Raman laser spectrometer flight model assembly and integration verification: end-to-end functional tests for thermal strap assembly procedure redefinition

J. Rodríguez-Prieto, G. Ramos , A. Moral , C. Canora, F. Rull, T. Belenguer, C. Quintana, J. Zafra, J. Cabrero, A. Santiago, D. Escribano

Proceedings Volume 11115, 1111505 (2019) https://doi.org/10.1117/12.2530552

KEYWORDS: Charge-coupled devices, Raman spectroscopy, Calibration, Lamps, Neon, Spectroscopy, Thermal modeling, Mars

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Proceedings Article | 12 July 2019 Open Access

RAMAN spectrometer: development of SPU FM based on enhanced qualification model for Exomars 2020

J. Fco. Cabrero, M. Fernández, M. Colombo, D. Escribano, P. Gallego, R. Canchal, T. Belenguer, J. García-Martínez, J. Encinas, L. Bastide, I. Hutchinson, A. Moral, C. Canora, J. A. Prieto, C. Gordillo, A. Santiago, A. Berrocal, F. Rull

Proceedings Volume 11180, 1118038 (2019) https://doi.org/10.1117/12.2536035

KEYWORDS: Fermium, Frequency modulation, Charge-coupled devices, Raman spectroscopy, Spectroscopy, Diffraction gratings, Optical fibers, Collimators, Mars, Optical components

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The Raman Laser Spectrometer (RLS) is one of the Pasteur Payload instruments within the ESA’s ExoMars mission. The RLS instrument scientific goal consists of perform in-situ Raman spectroscopy over different organic and mineral powder samples of the Mars subsoil. It consists of three main units: SPU (Spectrometer Unit), iOH (Internal Optical Head), ICEU (Instrument Control and Excitation Unit) which are interconnected by an optical and electrical harnesses (OH and EH).

The SPU is one of the most critical units of the RLS instrument. The Engineering Qualification Model (EQM) unit has been already delivered after a proper qualified campaign in a very demanding environment with very restrictive design constraints, including Planetary Protection requirements. Also, a complete set of functional tests had been carried out under representative environment, simulating not only Mars rover´s laboratory conditions (thermal range and pressure), but also the cruise phase. Previously, an exhaustive qualification campaign was developed with two different purposes: to mitigate the risks associated to new optical elements included in the design and without space heritage; and to obtain a detailed comprehension of their behaviour under Mars conditions for facing the Flight Model (FM) optical design with guarantee of success.

EQM results were successful in terms of Engineering, and a SWaP-optimized system had been reached. The acquired knowledge of that model has been used to implement little improvements into SPU FM for acceptance. For operations, a big amelioration has been the reduction of the image ROI on the Charge-Coupled Device (CCD) after the improving of the alignment of the inclination degree of the image plane on CCD under the tightly integration constrains, letting to download the minimum necessary data bytes. These improvements achieved by a proper analysis of the image on the SPU CCD will allow to evaluate far better the Raman spectrum effects.

SPU FM Mechanical, Thermal-Vacuum campaign has been already finished in order to accept for flight the current unit which will be already completed and “flight qualified” at RLS system level before the congress. If everything continues on this way, the desired Technology Readiness level, TRL 8 maturity level, will be reported during the following text.

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Proceedings Article | 12 July 2018 Paper

Raman laser spectrometer optical head: flight model performance verification

A. Santiago, G. Ramos, M. Sanz-Palomino, C. Gordillo, J. Cabrero, A. Moral, J. A. R. Prieto, C. Canora, T. Belenguer, R. Canchal, P. Gallego, D. Escribano, G. López-Reyes, F. Rull

Proceedings Volume 10698, 106986D (2018) https://doi.org/10.1117/12.2313462

KEYWORDS: Raman spectroscopy, Spectroscopy, Optical filters, Laser optics, Metrology, Laser spectroscopy, Mars

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Proceedings Article | 22 August 2017 Paper

Raman laser spectrometer optical head: qualification model assembly and integration verification

G. Ramos, M. Sanz-Palomino, A. Moral, C. Canora, T. Belenguer, R. Canchal, J. A. Prieto, A. Santiago, C. Gordillo, D. Escribano, G. Lopez-Reyes, F. Rull

Proceedings Volume 10377, 103770O (2017) https://doi.org/10.1117/12.2277003

KEYWORDS: Raman spectroscopy, Spectroscopy, Laser optics, Laser spectroscopy, Head, Calibration, Integrated optics, Mars, Auroras, Control systems

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