Computer-assisted experiments with oscillatory circuits

Autor:	A Ferraz, M S Rogalski, J C Fernandes
Rok vydání:	2010
Předmět:	Physics Data acquisition Function generator Electronic engineering Damping factor General Physics and Astronomy RLC circuit Workspace Electronic filter Frequency filtering Electronic circuit
Zdroj:	European Journal of Physics. 31:299-306
ISSN:	1361-6404 0143-0807
DOI:	10.1088/0143-0807/31/2/007
Popis:	A basic setup for data acquisition and analysis from an oscillatory circuit is described, with focus on its application as either low-pass, high-pass, band-pass or band-reject frequency filter. A homemade board containing the RLC elements allows for the interchange of some of them, in particular, for the easy change of the R value, and this makes apparent for the student its influence on the damping factor. The function generator operates in the swap frequency mode over a suitable frequency range and all the circuit parameters are chosen to provide a reasonable set of data for all the electronic filters studied. The output data are acquired through a commercially available DAQ board and data analysis is performed using a graphing and fitting workspace. The main objective is to develop a methodology of teaching the laboratory material through a computer-based environment devised to help students to appreciate how the governing equations work and to visualize their practical applications.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::78733fac33ecfa46644403041320bac5 https://doi.org/10.1088/0143-0807/31/2/007 Zobrazit plný text záznamu