Sistem za generiranje in merjenje dinamičnih veličin osnovan na Raspberry Pi

Kosler, Peter (author), Slavič, Janko (mentor)

Zaključna naloga obravnava uporabnost plošče Raspberry Pi kot platformo za komunikacijo z analogno-digitalnim in digitalno-analognim pretvornikom za merjenje dinamičnih veličin. Naredili smo pregled različnih pretvornikov in izbrali najbolj ustreznega. Razvili smo skripto v programskem jeziku Python za komunikacijo s pretvornikom, jo kalibrirali ter preizkusili njeno delovanje. Z referenčnim merilnim sistemom smo preverili točnost rezultatov. Programska oprema omogoča merjenje in generiranje visoko frekvenčnih signalov in s tem tudi merjenje odziva sistema.

• Language: Slovenian
• Keywords: Raspberry Pi, Python, analogno-digitalna pretvorba, vzorčenje signalov, vmesnik SPI, lastne frekvence
• Work type: Final paper
• Typology: 2.11 - Undergraduate Thesis
• Organization: FS - Faculty of Mechanical Engineering
• Place of publishing: Ljubljana
• Publisher: [P. Kosler]
• Year: 2020
• Number of pages: 32 str.
• PID: 20.500.12556/RUL-118698
• UDC: 004.382.7:681.518.3(043.2)
• COBISS.SI-ID: 27590659
• Publication date in RUL: 31.08.2020

Secondary language

• Language: English
• Title: Raspberry Pi based data generation and data acquisition

Abstract

This thesis deals with the applicability of the Raspberry Pi as a platform for communication with an analog-to-digital and a digital-to-analog converter for measuring dynamic quantities. An overview of different converters was done. We developed software in the Python programming language for communication with the converter, calibrated it and did an operation test. We checked the accuracy of the results with a reference measuring system. The software enables measurement and generation of high-frequency signals and thus also measurement of the system response.

• Keywords: Raspberry Pi, Python, analog to digital conversion, signal sampling, SPI protocol, natural frequencies