A control electronic system was developed with equidistant perpendicular displacements to obtain the light intensity of different lighting sources, with a data acquisition card to graph the characteristic curves in an obscure chamber. An aluminum structure was implemented, placing bands jagged on each axis and mounted on the gear of each of the with bipolar steps motors, which allow movement in two-dimensional form. A graphical interface was generated to control the resolution of the displacement and 3D supports were designed to place the light flow sensor, obtaining the characteristic curve of the different types of lighting sources as LED panel, Compact Fluorescent Lights, high power LED, and incandescent in the experimental arrangement. This type of system presents diverse benefits for applications in the characterization of lenses, lasers or optical sensors to apply them in the field of electronics, mechatronics and robotics. The system allows to obtain the curve of light intensity that can determine the behavior of the light source in accordance with the two-dimensional displacement of equidistant form shown in a graphical interface.
A channel-type Fresnel surface was designed using the polynomial interpolation adjustment method. The experimental arrangement was composed of a metal complex, a high power LED lighting source, a cooling system and a Fresnel concentrator. The tests were done in a dark chamber, placing the compound at an effective focal distance from the reflected rays of the concentrator, for a time. By exposing the sample to the LED irradiation, its changes were registered in a UV-Vis spectrophotometer, obtaining an absorbance graph vs wavelength, the changes observed in the transition bands in displacement and intensity of the blue region to the red of the spectrum, confirmed the efficiency and usefulness of the Fresnel-type concentrator in the development of the photochemical reactor. This photochemical reactor has an advantage over commercial reactors, because it uses samples of compounds in small solutions, is portable, it can be implemented in university and pharmaceutical laboratories. The results were favorable, a low energy consumption was obtained, and a reduction of time in the molecular reaction process of the analyzed compound.
The programming was designed to develop reports that include mathematical and graphical analysis during the online class modality. The report generator included within the MATLAB software libraries allows the generation of files in pdf, word, power point and html formats to be developed through programming. The software captures and generates dynamic reports of the results and graphical expressions to document the results in a single report, facilitating collaboration with other users to share a template based on professional standards in companies, organizations, educational institutions and universities. Importing libraries like mlreportgen.dom and mlreportgen.report into a script, specifies the structure of objects such as the header, titles and subtitles, image footer and table citation. The report for the delivery of online activities, students are required to enter their personal information, the report includes the equations and the results generated by the template makes it easy for students to deliver the activities instantly. Obtaining a script capable of generating reports with professional standards of remote activities, developed for delivery, thus allowing immediate collaboration and evaluation.
A radio control card was designed and developed to adapt to a conventional irrigation system with radio frequency activation for the State of Puebla, Mexico. In the design of the double-layer printed circuit board, the modules of decode of dual tone multi frequency and two of record and playing of audio were employed. The control functions were carried out with a microcontroller, the power stage was adapted using two triodes of alternating current to activate two contactors, in addition, three relays were placed; the first has the function of regulating the temperature, the second activates the radio transmitter and the third turns on the lighting in the cabinet, temperature control is carried out through a sensor. An electronic radio control card was obtained with the ability to connect to a radio transmitter to activate and deactivate loads of high demand for electrical energy at a distance of 2 linear km, allowing to reduce the times in the irrigation system and to confirm the audio messages on the mobile radio, the card is low cost compared to the market and its operation is simple.
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