Improving the quality of measurements in electrical processes using NI USB data acquisition systems.

Autor: NICULESCU, Titu, POPESCU, Florin Gabriel, MARCU, Marius, SLUSARIUC, Ioan Răzvan
Předmět:
Zdroj: Quality - Access to Success; 2019 Supplament1, Vol. 20, p293-298, 6p
Abstrakt: For the study, the evaluation and visualization of switching processes, modern computer-aided measurement elements associated with high-speed data acquisition systems are used. In the paper is presented a method of study of switching phenomena using a NI USB data acquisition system produced by National Instruments. It is well known that the acquisition software provided by the manufacturing company is LabView. In the paper is presented a more efficient alternative method, based on the use of MATLAB software, and a design interface circuit attached to the NI USB system. In industrial electrical installations frequently occur situations where inductive circuits are connected to alternating current sources. Two methods of data acquisition are presented in the paper. The first method to study this, is the acquisition of data using a MATLAB program designed for the interface circuit presented in the paper and the NI USB data acquisition system. The second method of measurement is based on the use of the Simulink program package. Because there is no support software for data acquisition in Simulink in 64-bit systems, the paper presents a method that does this. The measurement method highlights its superiority compared to the use of LabView software. In the paper, both aspects of the switching are addressed, both by connecting an inductive circuit to an alternative voltage source and by disconnecting it from the source. [ABSTRACT FROM AUTHOR]
Databáze: Supplemental Index