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Ara es mostren els items 1-16 de 16

  • Applications of hot film anemometry to space missions 

    Jiménez Serres, Vicente; Domínguez Pumar, Manuel; Ricart Campos, Jordi; Kowalski, Lukasz; Navarro, Sara; torres, josefina; Castañer Muñoz, Luis María (VDE Conference Publications, 2008)
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    In this paper the most important constraints of the wind sensors for the Martian atmosphere are described, along with an overview of the past successful designs. Practically all the data available today about the Martian ...

  • A self-calibrating closed loop circuit for configurable constant voltage thermal anemometers 

    Gorreta Mariné, Sergio; Barajas Ojeda, Enrique; Kowalski, Lukasz; Atienza García, María Teresa; Domínguez Pumar, Manuel; Jiménez Serres, Vicente (Institution of Electrical Engineers, 2015-09-17)
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    Accés obert

  • Delfos, un recurs interactiu per l'estudi de dispositius electrònics 

    Calderer Cardona, Josep; Prat Viñas, Lluís; Jiménez Serres, Vicente; Pons Nin, Joan (Universitat de Barcelona. Edicions i Publicacions, 2006)
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    Es presenta un programa interactiu per a un curs bàsic de dispositius semiconductors suportat per ordinador personal. Els destinataris primers són els alumnes de la titulació de segon cicle en Enginyeria Electrònica de la ...

  • Dos qüestionaris interactius d'electrònica: CyDEL i DELFos 

    Prat Viñas, Lluís; Pons Nin, Joan; Jiménez Serres, Vicente; Calderer Cardona, Josep (2006-02)
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    Es presenten dos qüestionaris interactius d'electrònica: CyDEL, dedicat a l'anàlisi de circuits electrònics bàsics i que dona suport a l'assignatura troncal "CISE 1" d'Enginyeria de Telecomunicació, i DELFOS, per a ...

  • Fundamentos de diseño microelectrónico 

    Castañer Muñoz, Luis María; Jiménez Serres, Vicente; Bardés Llorensí, Daniel (Edicions UPC, 2002)
    Llibre
    Accés restringit als usuaris de la UB, UAB, UPC, UPF, UdG, UdL, URV, UOC, BC, UVic, UJI, URL, UIC
    El presente texto aporta el material necesario para un curso introductorio de diseño microelectrónico. Este libro está concebido como una herramienta de autoaprendizaje y, por ello, en cada capítulo se proponen numerosos ...

  • Heat flow dynamics in thermal systems described by diffusive representation 

    Domínguez Pumar, Manuel; Atienza García, María Teresa; Kowalski, Lukasz; Novio Vázquez, Santiago; Gorreta Mariné, Sergio; Jiménez Serres, Vicente; Silvestre Bergés, Santiago (Institute of Electrical and Electronics Engineers (IEEE), 2016-09-01)
    Article
    Accés obert
    The objective of this paper is to analyze the dynamics of heat flow in thermal structures working under constant temperature operation. This analysis is made using the tools of sliding mode controllers. The theory is ...

  • Low-cost thermal s-d air flow sensor 

    Domínguez Pumar, Manuel; Masana Nadal, Francisco; Jiménez Serres, Vicente; Bermejo Broto, Sandra; Amírola Sanz, Jorge; Ballester, Javier; Fueyo, Norberto; Castañer Muñoz, Luis María (2002-10)
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    Accés obert
    This paper describes the design and optimization of a hot-wire air flowmeter. A low-cost design of the packaging allows good thermal contact with the airflow, as well as good thermal isolation between the hot and cold ...

  • Low pressure spherical thermal anemometer for space missions 

    Kowalski, Lukasz; Jiménez Serres, Vicente; Domínguez Pumar, Manuel; Gorreta Mariné, Sergio; Silvestre Bergés, Santiago; Castañer Muñoz, Luis María (Institute of Electrical and Electronics Engineers (IEEE), 2013)
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    Accés restringit per política de l'editorial
    The novelty of this 2D thermal anemometer is the spherical compact and robust design with improved sensitivity in the range of 600-900Pa of carbon dioxide pressure and 0.25 to 10 m/s wind speed. The small size (11.2mm ...

  • Model identification of time-varying diffusive systems 

    Atienza García, María Teresa; Kowalski, Lukasz; Gorreta Mariné, Sergio; Pons Nin, Joan; Jiménez Serres, Vicente; Domínguez Pumar, Manuel (2018)
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    This paper presents a characterization method based on diffusive representation for a class of linear or nonlinear time-varying diffusive systems. The system variation with time may come as a result of the own actuation ...

  • Pulsed digital oscillators for electrostatic MEMS 

    Gorreta Mariné, Sergio; Ruiz Fernández, Daniel; Blokhina, Elena; Pons Nin, Joan; Jiménez Serres, Vicente; O'Connell, D.; Feely, Orla; Madrenas Boadas, Jordi; Domínguez Pumar, Manuel (2012)
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    Accés restringit per política de l'editorial
    This paper introduces a new actuation scheme for implementing Pulsed Digital Oscillators (PDOs) for electrostatic MEMS resonators. In this scheme, the capacitance of the device is biased with a voltage and it is periodically ...

  • REMS: the environmental sensor suite for the Mars Science Laboratory rover 

    Gómez Elvira, J.; Armiens, C.; Castañer Muñoz, Luis María; Domínguez Pumar, Manuel; Genzer, M.; Gómez, Francisco; Haberle, Robert M.; Harris, Aiden M.; Jiménez Serres, Vicente; Kahanpää, H.; Kowalski, Lukasz; Lepinette, A.; Martín, Jacques Wesley; Martínez Frías, Jesús; McEwan, I.; Mora, L.; Moreno, Jose C.; Navarro, S.; De Pablo, M.A.; Peinado, V.; Peña, A.; Polkko, J.; Ramos, Miguel; Renno, Nilton O.; Ricart, Jordi; Richardson, M.; Rodríguez Manfredi, José Antonio; Romeral, Julio; Sebastián, Eduardo M.; Serrano, Jaime; De La Torre Juárez, Manuel; Torres, Jose Antonio; Torrero, F.; Urquí, R.; Vázquez, L.; Velasco, T.; Verdasca, J.; Zorzano, M.P.; Martín Torres, Javier (2012-09)
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    Accés restringit per política de l'editorial
    The Rover Environmental Monitoring Station (REMS) will investigate environ- mental factors directly tied to current habitability at the Martian surface during the Mars Sci- ence Laboratory (MSL) mission. Three major ...

  • Self-calibrating closed-loop circuit for configurable constant voltage thermal anemometers 

    Gorreta Mariné, Sergio; Barajas Ojeda, Enrique; Kowalski, Lukasz; Atienza García, María Teresa; Domínguez Pumar, Manuel; Jiménez Serres, Vicente (Institution of Electrical Engineers, 2015-09-17)
    Article
    Accés obert
    A new circuit is described which applies a configurable voltage across an RTD while the current flowing through it is measured with a current mirror. The circuit also allows working with voltages above the IC supply voltage ...

  • Sliding mode analysis applied to improve the dynamical response of a spherical 3D wind sensor for Mars atmosphere 

    Atienza García, María Teresa; Kowalski, Lukasz; Gorreta Mariné, Sergio; Jiménez Serres, Vicente; Castañer Muñoz, Luis María; Domínguez Pumar, Manuel (2017-11-01)
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    Accés obert
    The objective of this paper is to show how the structure of a thermal wind anemometer can be tuned to ensure a fast response when the sensor works in closed loop configuration (constant temperature operation). If the thermal ...

  • Spherical wind sensor for the atmosphere of mars 

    Kowalski, Lukasz; Atienza García, María Teresa; Gorreta Mariné, Sergio; Jiménez Serres, Vicente; Domínguez Pumar, Manuel; Silvestre Bergés, Santiago; Castañer Muñoz, Luis María (2016-04-01)
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    Accés obert
    A novel wind speed and direction sensor designed for the atmosphere of Mars is described. It is based on a spherical shell divided into four triangular sectors according to the central projection of tetrahedron onto the ...

  • Thermal dynamics modeling of a 3D wind sensor based on hot thin film anemometry 

    Atienza García, María Teresa; Kowalski, Lukasz; Gorreta Mariné, Sergio; Jiménez Serres, Vicente; Domínguez Pumar, Manuel (2018-02-01)
    Article
    Accés obert
    The objective of this paper is to obtain time-varying models of the thermal dynamics of a 3D hot thin film anemometer for Mars atmosphere. To this effect, a proof of concept prototype of the REMS (Rover Environmental ...

  • Time-varying thermal dynamics modeling of the prototype of the REMS wind sensor 

    Atienza García, María Teresa; Kowalski, Lukasz; Gorreta Mariné, Sergio; Jiménez Serres, Vicente; Domínguez Pumar, Manuel (2017)
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    The objective of this work is to show the results from the analysis of the thermal dynamics of a prototype of the REMS 3D wind anemometer using the tools of Diffusive Representation (DR). DR is a mathematical tool that ...