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Digital holographic interferometry is a full field optical technique, used in the measurement of dynamic and non-contact events, this technique works with arrays where the initial acquisition of interference fringes is not necessary, but rather involves the superposition of two wave fronts. Where from the holograms and by means of a Fourier window-based processing it is feasible to recover the information of both intensity and phase. However, the interference fringes resulting from the demodulation of the holograms may have low intensity, affecting their subsequent analysis. In this work, the combination of the holographic techniques, filters and the superposition principle is proposed to increase the intensity of the fringes, the results show that using the Fourier method in combination with the superposition theorem is possible to obtain greater intensity between the minimum and maximum of the fringes.

This project seeks to strengthen the Information Center of the Universidad Tecnológica del Norte de Aguascalientes through an access control system for all those who use the facilities. These types of systems usually rely on biometric sensors such as fingerprints or face identifiers, however, RFID cards will be used for our case, because the University already has them. Embedded computation was used for the development of the prototype based on the development board known as Raspberry Pi and also the sensors to read card information. This project allows a better control within the Information Center and generates data that will be transformed into useful information for various areas of the University. While the main objective is to keep a check, the system will allow in the future to generate certain types of reports that will be very useful in the different certifications.