Photo Sensors
Mostrando 1-6 de 6 artigos, teses e dissertações.
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1. Investigação do efeito de grupos periféricos de rutênio sobre as propriedades fotofísicas de porfirinas
In the last few years the search for new organometallic complexes that exhibit large and fast optical responses at UV-Vis and near IR spectrum regions have attracted a considerable interest because of their potential application in devices such as sensors, optical limiters, switches and in medicine, being used as sensitive drugs in photodynamic treatments. A
Publicado em: 2011
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2. Study of optical and electro-optical properties of diamond-like carbon films - DLC. / Estudo das propriedades ópticas e eletro-ópticas de filmes de carbono amorfo tipo diamante - DLC.
In this work it was studied electrical and optical characteristics of diamond-like carbon (DLC) films deposited in a reactive RF magnetron sputtering system on silicon and glass substrates. Samples were deposited at different process conditions in each type of substrate at two pressure conditions (5 mTorr and 10 mTorr) and four conditions of RF power (100 W,
Publicado em: 2010
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3. COMPARAÇÃO ENTRE CONTROLES LOOK-AND-MOVE E SERVO-VISUAL UTILIZANDO TRANSFORMADAS SIFT EM MANIPULADORES DO TIPO EYE-IN-HAND / COMPARISON BETWEEN LOOK-AND-MOVE AND VISUAL SERVO CONTROL USING SIFT TRANSFORMS IN EYE-IN-HAND MANIPULATOR SYSTEMS
Computer vision can be used to calibrate and self-localize robots. There are many applications in self-localization and control applied to industrial manipulators and mobile robots. In particular, visual control can be useful in submarine interventions, where a robotic manipulator is mounted on a Remote Operated Vehicle (ROV) to execute tasks at high depths,
Publicado em: 2009
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4. CHARACTERIZATION OF OBJECTIVES WITH IMAGES OF MULTISPECTRAL AIRBORNE SENSOR EPS-A 31T SUPPORTED BY SPECTRORADIOMETRY DATA. / CARACTERIZAÇÃO DE ALVOS COM IMAGENS DO SENSOR MULTIESPECTRAL AEROTRANSPORTADO EPS-A 31T APOIADO POR DADOS DE ESPECTRORADIOMETRIA.
A necessidade de identificar objetos no solo constituídos por diversificados tipos de materiais tornou-se um desafio aos pesquisadores na atividade de sensoriamento remoto. Esta situação alavancou novas pesquisas na área de desenvolvimento de sensores e estimulou o aprimoramento e criação de novas técnicas e ferramentas que auxiliem na caracterizaçã
Publicado em: 2008
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5. Construction and the validation tests of an electronic device able to measure the half value layer in diagnostic X-ray beams / Construção de um dispositivo eletronico para determinação de camada semi-condutora em feixe de raios-x diagnostico
This work describes the construction and the validation tests of an electronic device able to measure the half value layer in diagnostic X-ray beams. The device utilizes a transducer assembled with three sensors using the photoluminescence of the organic scintillator anthracene. The light signal, proportional to the incident radiation, reaches three photo re
Publicado em: 2005
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6. METROLOGICAL EVALUATION OF OPTICAL EMITTERS AND DETECTORS APPLIED TO THE CHARACTERIZATION OF ATMOSPHERIC PARTICULATES POLLUTANTS / AVALIAÇÃO METROLÓGICA DE EMISSORES E DETECTORES ÓPTICOS APLICADOS À CARACTERIZAÇÃO DE POLUENTES PARTICULADOS ATMOSFÉRICOS
The atmospheric pollution is a latent world-wide problem, and it is harmful to the health, visibility and climate. For these factors, several studies and researches have been developed to characterize the chemical composition of the pollutants, concentration, size of particles, etc, with the objective of constructing adjusted instruments for the control of t
Publicado em: 2003