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Diploma Thesis from the year 2012 in the subject Electrotechnology, grade: 2.0 bzw."B", The Slovak Technical University (Faculty of electrical engineering and information technology), language: English, abstract: Design a signal detection device for detection and digitization of weak signals with frequencies up to 25 Hz before their transmission into a personal computer (PC). The device should contain an input low-pass filter with a cutoff frequency of 25 Hz, a preamplifier, microcontroller MSP430F2013 for digitization and preparation of the digitized signals for transmission into the PC via USB interface.