1,881 research outputs found

    The use of 9-anthroic acid and new amide derivatives to monitorize curing of epoxy resins

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    Curing of an epoxy resin was studied by steady-state fluorescence and correlationed with IR methods to get more insight on the physical processes occurring during the curing of an epoxy/amine system. We have synthesized and tested a set of 9-anthroic acid (AA) derivatives, that are sensitive to changes in the medium properties. Its fluorescence response is analyzed and compared and it is concluded that N-dibutylanthroic acid amide shows the best performance

    Diseño y construcción de una fuente de corriente AC regulable para ensayo de sondas de corriente

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    En el presente trabajo se realiza el diseño de un medidor de tensión y corriente alterna para ser utilizado en una fuente de corriente alterna de 50A, mostrando los resultados en un display, tanto de forma gráfica como numérica. Para ello se ha empleado el entorno de desarrollo integrado de Arduino (IDE) adaptando los drivers para funcionar con el microprocesador ESP-32. La visualización de la información se hará mediante una pantalla TFT que mostrará la forma de las ondas y el valor eficaz numérico. Se ha comprobado todo el funcionamiento en un prototipo sobre una placa tipo proto-board.In the present work we are going to design an alternating voltage and alternating current measure instrument to be used in a 50A current source, while showing the results in a display, graphically and numerically. To do so, Arduino’s IDE is used, adapting the drivers to function with the microprocessor ESP-32. The information will be shown using a TFT screen that will display the shape of the wave and the numerical value of the effective value. A proto-board has been used to test the device’s functioning.Departamento de Tecnología ElectrónicaGrado en Ingeniería en Electrónica Industrial y Automátic
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