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Listar por palabra clave "Interferometry"

Mostrando ítems 1-13 de 13

Artificial Intelligence and 3D Scanning Laser Combination for Supervision and Fault Diagnostics

Vives, Javier; Palací, Juan (MDPI AG, 2022-10)

[EN] In this work, we combine some of the most relevant artificial intelligence (AI) techniques with a range-resolved interferometry (RRI) instrument applied to the maintenance of a wind turbine. This method of automatic ...
Demonstration of multiplexed sensor system combining low coherence interferometry and microwave photonics

Benítez, Jesús; Bolea, Mario; Mora Almerich, José (The Optical Society, 2017)

[EN] In this work, a multiplexed sensor system is proposed by means of the combination of low coherence interferometry (LCI) and microwave photonics (MWP). Variations of physical magnitudes can be measured in an array of ...
Enhancement of the sensitivity of a temperature sensor based on fiber Bragg gratings via weak value amplification

Salazar-Serrano, L.J.; Barrera Vilar, David; Amaya Ocampo, Waldimar Alexander; Sales Maicas, Salvador; Pruneri, V..; Capmany Francoy, José; Torres, J.P. (Optical Society of America, 2015-09-01)

We present a proof-of-concept experiment aimed at increasing the sensitivity of Fiber-Bragg-gratings temperature sensors by making use of a weak-value-amplification scheme. The technique requires only linear optics elements ...
Increased sensitivity through maximizing the extinction ratio of SOI delay-interferometer receiver for 10G DPSK

Aamer, Mariam; Griol Barres, Amadeu; Brimont, Antoine Christian Jacques; Gutiérrez Campo, Ana María; Sanchis Kilders, Pablo; Håkansson, A. (Optical Society of America, 2012)

[EN] We present an optimized design for a 10G- differential-phase-shift-keyed (DPSK) receiver based on a silicon-on-insulator (SOI) unbalanced tunable Mach-Zehnder interferometer (MZI) switch in sequence with a Mach-Zehnder ...
Interferometric multilayered nanomaterials for imaging unlabeled biorecognition events

Sancho-Fornes, Gabriel; Avella-Oliver, Miquel; Carrascosa Rubio, Javier; Puchades, Rosa; Maquieira Catala, Angel (Elsevier, 2021-03-15)

[EN] There is an intense scientific activity on nanomaterials for biosensing, supported by their great potential to conceive powerful applications in chemistry, biology, and medicine. In addition to meet the required ...
Landslide Monitoring Using Geotechnical, UAV, GNSS and MTInSAR Instrumentation

Depountis, Nikolaos; Kavoura, Katerina; Nikolakopoulos, Konstantinos; Drakatos, George; Argyrakis, Panagiotis; Elias, Panagiotis; Sabatakakis, Nikolaos (Editorial Universitat Politècnica de València, 2023-01-27)

[EN] Many mountainous villages have been struck by landslides in Western Greece due to growing urbanization and uncontrolled land use in landslide prone areas, without considering the engineering geological environment. ...
Low-Coherence Interferometry Using Microwave Photonics for Multilayered Samples

Benítez-González, Jesús; Mora Almerich, José (Institute of Electrical and Electronics Engineers, 2018-10-01)

[EN] A photonic structure is proposed by exploiting the advantages of the Microwave Photonics technology over conventional low coherence interferometry. The proposed scheme is based in the analysis of the interference ...
Monthly Deforestation Monitoring with Sentinel-1 Multi-temporal Signatures and InSAR Coherences

Pulella, A.; Sica, F.; Rizzoli, P. (Universitat Politècnica de València, 2020-11-27)

[EN] Sentinel-1 interferometric time-series allow for the accurate retrieval of the target’s temporal decorrelation and, therefore, the inversion of land cover information and its temporal monitoring. This paper describes ...
Optical Frequency Domain Interferometry for the Characterization and Development of Complex and Tunable Photonic Integrated Circuits

Bru Orgiles, Luis Alberto (Universitat Politècnica de València, 2022-03-28)

[ES] Esta tesis aborda la caracterización de circuitos fotónicos integrados (PIC) usando interferometría óptica en el domino de las frecuencias (OFDI). OFDI tiene una implementación razonablemente simple e interroga al ...
Phase Method for Visualization of Hidden Dielectric Objects in the MillimeterWaveband

Minin, Igor V.; Minin, Oleg V.; Castiñeira Ibáñez, Sergio; Rubio Michavila, Constanza; Candelas Valiente, Pilar (MDPI AG, 2019)

[EN] A method of detecting dielectric objects hidden behind an opaque barrier located on a reflective background, based on the distortion of interference fringes, is proposed in this article. Experiments conducted in the ...
Status of the new German DIN standards project “InSAR– Radarinterferometry for the detection of ground movements”

Spreckels, Volker (Editorial Universitat Politècnica de València, 2023-01-27)

[EN] The German DIN institute for standards works on the new standards project DIN 18740-9 “InSAR – radar interferometry for the detection of ground movements”. Due to the increasing availability of radar satellite data ...
Undergraduate experiment with fractal diffraction gratings

Monsoriu Serra, Juan Antonio; Furlan, Walter D.; Pons, Amparo; Giménez Valentín, Marcos Herminio (European Physical Society, 2011-03-11)

We present a simple diffraction experiment with fractal gratings based on the triadic Cantor set. Diffraction by fractals is proposed as a motivating strategy for students of optics in the potential applications of optical ...
Vibration Analysis for Fault Detection of Wind Turbines by Combining Machine-Learning Techniques and 3D Scanning Laser

Vives-Fuster, Javier; Roses Albert, Eduardo; Quiles, Emilio; Palací, Juan; Fuster, Teresa (Hindawi Limited, 2022-12-26)

[EN] With this research, we apply range-resolved interferometry (RRI) to the maintenance of wind turbines using some of the most relevant machine-learning (ML) techniques. The degeneration of electrical and mechanical ...