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Science and technology of Space instruments for characterizing the Martian environment within multiple NASA missions: 3D wind sensor

Total activity: 19
Type of activity
Competitive project
Funding entity
Funding entity code
278.300,00 €
Start date
End date
The objective of this project is to advance the knowledge and technology of wind sensors for martian atmosphere, providing the flight
model of the 3D wind sensor chips, within the framework of the MEDA station, performing dynamic modeling and designing data
processing algorithms enabling better data postprocessing in Earth.
The wind sensor of the MEDA instrument is based on the wind sensor on board the Curiosity Roveer of the NASA Mars Science
Laboratory. This was the result of a joint effort between the Astrobiology Center, EADS-CRISA and the MNT-UPC group. One of the
objectives of this project is the dynamic modelling of the wind sensor. It is also proposed to work in a second spherical sensor that will
contribute in the experimental calibration of the MEDA sensor. Since this spherical sensor is small, and therefore, not invasive, and
furthermore has a very simple inverse algorithm, it is proposed to use this second sensor to calibrate the interferences produced on the
MEDA wind sensor by structures such as the rover mast or other parts of the rover.
This proposal is a continuation of the one-year project ESP-2014-54256-CR4-2-R which initiated the development of the MEDA station
(which to date has exceeded the IAR and the PDR by JPL). It collects a wide range of improvements over the wind sensor present in the
REMS instrument. Specifically, improvements are proposed both for the sensor geometry and in the design of the temperature sensitive
element and the measuring strategy. Sensor simplification involves reducing from three to two platinum resistors. The silicon dice
containing the platinum resistors will be supported by thermally isolating pillars.
Regarding the measurement strategy, the sensor will work at constant temperature. This represents an improvement on the strategy of the
REMS sensor, which enforced a constant temperature difference between the hot chips and a reference chip, which was supposed to be
at a temperature close to that of the surrounding atmosphere. This change reduces the number of sensing resistors on each chip, thereby
simplifying the system.
As regards the auxiliary sensor with spherical geometry, it is proposed to perform various design improvements to improve performance in
order to obtain a more detailed calibration of the MEDA instrument.
Finally identification of the thermal system of the MEDA wind sensor based on diffusive representation is proposed. The theoretical study
of the control of heterogeneous systems, such as wind sensors, will be performed using the tools of sliding mode controllers. It is proposed
the design of new algorithms to improve the data postprocessing in Earth, evaluating the application of compressed sensing.
Algorithms to improve data postprocessing in Earth and make a better screen data designed. the application of compressed sensing
techniques will be evaluated.
Mars, espacio, marte, sensor, space, viento, wind
Adm. Estat
Plan Estatal de Investigación Científica y Técnica y de Innovación 2013-2016
Resoluton year
Funcding program
Programa Estatal de I+D+i Orientada a los Retos de la Sociedad
Funding call
Retos de Investigación: Proyectos de I+D+i
Grant institution
Gobierno De España. Ministerio De Economía Y Competitividad, Mineco


Scientific and technological production

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