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El objetivo de la tesis es el estudio de sensores de estado sólido basados en el semiconductor sno2 capaces de detectar las concentraciones típicas del contaminante no2 presente en las atmósferas urbanas mediante cambios en las propiedades eléct[...]texto impreso
Franco Peláez, Francisco Javier ; Lozano Rogado, Jesús ; Santos Blanco, José Pedro ; Agapito Serrano, Juan Andrés | IEEE-Inst Electrical Electronics Engineers Inc | 2003-12Tests on instrumentation amplifiers exposed to neutron radiation have been done. The tested devices were commercial instrumentation amplifiers or designed with rad-tol commercial operational amplifiers. The results show changes in frequency beha[...]texto impreso
Agapito Serrano, Juan Andrés ; Barradas, Nuno P. ; Cardeira, Fernando M. ; Casas-Cubillos, Juan ; Fernandes, Ana C. ; Franco Peláez, Francisco Javier ; Gomes, Paulo ; Gonçalves, Isabel C. ; Hernández Cachero, Antonio ; Lozano Rogado, Jesús ; Martin Barreales, Miguel Ángel ; Marques, José G. ; Paz López, Antonio ; Prata, María José ; Ramalho, Antonio J. G. ; Rodríguez-Ruiz, Miguel Ángel ; Santos Blanco, José Pedro ; Vieira, A. | CERN Publishing Service | 2000-12-01Instrumentation amplifiers and voltage controlled current sources have been designed by using single operational amplifiers (OPA124, TLE2071 and OPA627). Their performance has been evaluated in the laboratory and under neutron radiation. On line[...]texto impreso
Agapito Serrano, Juan Andrés ; Santos Blanco, José Pedro ; Martin Barreales, Miguel Ángel ; Vásquez, Hernán | Institute of Electron Technology, Poland | 2000Nanocrystalline tin dioxide has been employed to develop two types of sensor devices. Two electrical properties, resistivity and work function, increase with oxidizing gas adsorption. The first leads to the classical thin film resistive sensor. [...]texto impreso
Agapito Serrano, Juan Andrés ; Cardeira, F. M. ; Casas-Cubillos, Juan ; Duarte Muñoz, Abraham ; Fernandes, Ana C. ; Franco Peláez, Francisco Javier ; Gil, María José ; Gomes, Paulo ; Gonçalves, Isabel C. ; Hernández Cachero, Antonio ; Jordung, Ulf ; Martin Barreales, Miguel Ángel ; Marques, José G. ; Paz López, Antonio ; Ramalho, Antonio J. G. ; Rodríguez-Ruiz, Miguel Ángel ; Santos Blanco, José Pedro | CERN Publishing Service | 1999-10-29The LHC accelerator will use about 1600 main superconducting magnets operating below 2K. The magnets temperature is a control parameter and its target accuracy imposes very severe constraints on both the sensing element and its signal conditione[...]texto impreso
Agapito Serrano, Juan Andrés ; Barradas, Nuno P. ; Cardeira, Fernando M. ; Casas-Cubillos, Juan ; Fernandes, Ana C. ; Franco Peláez, Francisco Javier ; Gomes, Paulo ; Gonçalves, Isabel C ; Hernández Cachero, Antonio ; Lozano Rogado, Jesús ; Marques, José G. ; Paz López, Antonio ; Prata, María José ; Ramalho, Antonio J. G. ; Rodríguez-Ruiz, Miguel Ángel ; Santos Blanco, José Pedro ; Vieira, A. | CERN Publishing Service | 2001A study of several commercial instrumentation amplifiers (INA110, INA111, INA114, INA116, INA118 & INA121) under neutron and vestigial gamma radiation was done. Some parameters (Gain, input offset voltage, input bias currents) were measured on-l[...]texto impreso
Lozano Rogado, Jesús ; Franco Peláez, Francisco Javier ; Paz López, Antonio ; Santos Blanco, José Pedro ; Agapito Serrano, Juan Andrés | s.n. | 2001-09-12Se presenta en este trabajo un sistema de instrumentación y medida de parámetros característicos de componentes electrónicos sometidos a radiación de neutrones. El propósito principal de este sistema es obtener sus características de éstos al m[...]
