Exploració per autor "Domínguez Pumar, Manuel"
Ara es mostren els items 69-88 de 110
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Light source position microsensor
(Institute of Electrical and Electronics Engineers (IEEE), 2001)
Text en actes de congrés
Accés obertThere exist industrial applications where an accurate estimation of a light source position is needed. That is the case for a heliostat, a device that projects sunlight upon a focus hundreds of meters distant. In this paper ... -
Low pressure spherical thermal anemometer for space missions
(Institute of Electrical and Electronics Engineers (IEEE), 2013)
Text en actes de congrés
Accés restringit per política de l'editorialThe 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 ... -
Low-cost thermal s-d air flow sensor
(2002-10)
Article
Accés obertThis 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 ... -
MEMS miniaturized low-noise magnetic field sensor for the observation of sub-millihertz magnetic fluctuations in space exploration
(Elsevier, 2024-05-15)
Article
Accés obertThe objective of this paper is to show that, using magnetic field modulation with a MEMS resonator, it is possible to reduce the noise floor of a commercial Tunneling Magnetic Resistance by one order of magnitude, in the ... -
MEMS technologies for energy harvesting
(Springer, 2016-11-11)
Capítol de llibre
Accés obertThe objective of this chapter is to introduce the technology of Microelectromechanical Systems, MEMS, and their application to emerging energy harvesting devices. The chapter begins with a general introduction to the most ... -
Model identification of time-varying diffusive systems
(2018)
Text en actes de congrés
Accés restringit per política de l'editorialThis 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 ... -
Modelling of a charge control method for capacitive MEMS
(Institute of Electrical and Electronics Engineers (IEEE), 2013)
Text en actes de congrés
Accés restringit per política de l'editorialCharging of dielectric materials in microelectromechanical systems (MEMS) actuated electrostatically is a major reliability issue. In our previous work we proposed a feedback loop control method that is implemented as ... -
Multiphysics simulation of REMS hot-film anemometer under typical martian atmosphere conditions
(COMSOL, 2010)
Text en actes de congrés
Accés obertThe purpose of this paper is to describe numerical electro-thermal simulations of the REMS wind sensor unit [3] and the results obtained by using COMSOL multiphysics. This device is a hot-film anemometer for 2D wind ... -
On some properties of the output of a pulsed digital oscillator working with multiple resonances
(Institute of Electrical and Electronics Engineers (IEEE), 2010)
Text en actes de congrés
Accés obertIn this paper, we study the possible output of the pulsed digital oscillator (PDO) with multiple resonant modes of the mechanical resonator in the feedback loop. PDOs are simple circuits that allow linear resonators to ... -
On the boundary layer development and heat transfer from a sphere at moderate Reynolds numbers
(2018)
Text en actes de congrés
Accés restringit per política de l'editorialDirect and large-eddy numerical simulations have been performed for a heated sphere at Reynolds numbers 200, 300, 500, 750, 1000 and 104, in the context of the development of a spherical wind sensor for Mars atmosphere ... -
On the effects of free-stream turbulence intensity in the fluid flow and heat transfer from a sphere at subcritical Reynolds numbers
(2018)
Comunicació de congrés
Accés restringit per política de l'editorialIn this work, the effect of the free-stream turbu-lence on the heat transfer and the near wake behind a sphere is studied at moderate Reynolds numbers of ¿¿ ¿ ¿¿¿¿ and ¿¿ ¿ ¿¿¿. Turbulence delays the sep-aration of the ... -
Open loop testing for optimizing the closed loop operation of chemical systems
(Pergamon Press, 2020-04-06)
Article
Accés obertOne way to optimize the operation of chemical systems consists on using closed loop controls while the system is operated. This way, it is possible to optimize the operating point in the plant, process or chemical system ... -
P3R-3 design and characterization of air coupled ultrasonic transducers based on MUMPs
(Institute of Electrical and Electronics Engineers (IEEE), 2007)
Text en actes de congrés
Accés obertThis paper deals with the design and characterization of several capacitive micromachined ultrasonic transducer (cMUT) cells for the future design of an air-coupled transducer for non destructive testing (NDT). Each design ... -
Piezo-MUMPS batch #1. First Report.
(2013-07-12)
Report de recerca
Accés restringit per acord de confidencialitat -
Pulsed digital oscillators
(Institute of Electrical and Electronics Engineers (IEEE), 2008)
Comunicació de congrés
Accés obertThe objective of this paper is to collect the main latest results on pulsed digital oscillators. Rigorous and experimental results are presented that show what kind of sequences are at their output, the relation between ... -
Pulsed digital oscillators for electrostatic MEMS
(2012)
Article
Accés restringit per política de l'editorialThis 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 ... -
Real-time characterization of dielectric charging in contactless capacitive MEMS
(2015-03-01)
Article
Accés obertThis paper presents a new method to characterize the dynamics of the charge trapped in the dielectric layer of contactless microelectromechanical systems. For sampled-time systems, this allows knowing the state of the net ... -
Remote supervision and fault detection on OPC monitored PV systems
(2016-09-01)
Article
Accés obertThis paper presents a new approach for automatic supervision and remote fault detection of grid connected photovoltaic (PV) systems by means of OPC technology-based monitoring. The use of standard OPC for monitoring enables ... -
REMS: the environmental sensor suite for the Mars Science Laboratory rover
(2012-09)
Article
Accés restringit per política de l'editorialThe 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 ... -
Second order sigma-delta control of charge trapping for MOS capacitors
(2017-09-01)
Article
Accés obertThis paper presents the circuit topology of a second order sigma-delta control of charge trapping for MOS capacitors. With this new topology it is possible to avoid the presence of plateaus that can be found in first-order ...
