Anna Plichta
Czasopismo Techniczne, Mechanika Zeszyt 4-M (26) 2015, 2015, s. 39 - 49
https://doi.org/10.4467/2353737XCT.15.365.4856This paper presents the results of the evaluation of several study visits. On that basis, it discusses the issue of the suitability of study visits in external companies for the wider process of familiarising students with the business and market environment.
Anna Plichta
Schedae Informaticae, Volume 24, 2015, s. 253 - 260
https://doi.org/10.4467/20838476SI.16.021.4362The paper concerns the construction scheme of Direct Digital Synthesis (DDS) generator based on widely developed Field Programmable Gate Arrays (FPGA) technology. Firstly, the division of all generators is presented regarding the fact whether they generate sinusoidal or non-sinusoidal signals and whether the they have positive or negative feedback. Next chapter concerns how to generate frequency directly and indirectly synthesis and how to integrate these types of sytheses into the hybrid one. According to the blueprint, DDS generator if fully digital, which facilitates the control enabling to change almost at will the oscillation while the system works. Next chapters contain the conclusions and some proposals regarding practical application. DDS synthesizer has been made in accordance to the assumptions of the project, which was confirmed in practice. Control program enables us to fuse some measuring systems together into one, which facilitates simultaneous gathering of the data from several devices. Hence, the overall efficiency rises and the costs of carried out experiments are reduced. In the case of foreigners, it will be supplied by editors.