Design av Digital Multimeter-modul för inbyggt testsystem

Detta är en M1-uppsats från Högskolan i Gävle/Avdelningen för elektronik, matematik och naturvetenskap

Författare: Tim Fahlström; [2014]

Nyckelord: ;

Sammanfattning: The thesis work of 15 credits has been performed to interest of Norrtälje ElektronikPartner AB (NEP) in Norrtälje. The aim of the thesis was to develop a prototype for an integrated digital multimeter, designed for one of NEP's proprietary test systems. A digital multimeter module according to NEP's requirement specification, such as physical size and accuracy should be constructed. The module should be able to measure current, voltage and resistance. The final circuit was based on the chosen analog to digital-converter, Maxim integrated´s Max134, which is the main component of the circuit for this instrument. A circuit diagram and PCB layout were made.   The result of this project is a constructed DMM board. During the project's final phase testing, tuning and validation were performed against the established terms of reference. The module was then found to measure current, voltage and resistance according to desired tolerance level.

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