Optical oscilloscope

Diplomsko delo obsega načrtovanje optičnega osciloskopa, ki temelji na analogno-digitalnem pretvorniku ADC08B200, hitri transimpedančni stopnji in mikrokrmilniku z vgrajenimi funkcijami digitalnega signalnega procesiranja. Analogno digitalni pretvornik vsebuje pomnilnik, v katerega lahko shranjuje tipan signal, nato pa te podatke posreduje mikrokrmilniku. S tem smo dosegli visoke frekvence vzorčenja analogno-digitalnega pretvornika, hkrati pa ohranili sistem, ki je združljiv z mikrokrmilnikom. Celoten sistem je zaradi tega cenovno učinkovit, hkrati pa omogoča različne tehnike signalnega procesiranja zajetih signalov. Zajeti in obdelani optični signali so prikazani v uporabniškem vmesniku, ki je narejen v programskem okolju LabVIEW.The diploma thesis includes the design of an optical oscilloscope based on analog-to-digital converter ADC08B200, a fast transimpedance stage and a microcontroller with built-in digital signal processing functions. The analog-to-digital converter contains a memory buffer in which it can store a processing signal and then transmit this data to the microcontroller. This way we achieved high sampling frequencies of the AD converter while keeping system compatible with the microcontroller. As a result, the entire system is cost-effective, while at the same time it is enabling various signal processing techniques for the captured signals. Captured and processed optical signals are displayed in the user interface, which is made in the Labview software environment