The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
This paper analyzed the problems existed in practice teaching process of electric courses and put forward a new view which is to apply virtual instrument (VI) technology in theses courses. On the basis of a simple instruction for labVIEW's VI design function, an instance which designed by labVIEW to emulate and detect harmonic signals was described in detail. The instance has been used in the course...