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.
As techniques for locating the fault point in the power feeding line of an optical submarine cable, the electric time domain reflector(TDR) is discussed. The location of the failure point of the power feeding line of the optical submarine cable can be measured using an electric time domain reflectometry (TDR). In TDR, round-trip time of an electric pulse is measured. However as the frequency dispersion...
As techniques for locating the fault position of the power feeding line of the optical submarine cable, the electric time domain reflector, and the AC resistance measurement are discussed. Authors measured the fault position of the cable that was subject to fault using these two methods. The actual fault point was directly located by divers using AC magnetic field detection method. Comparison of both...
Power feeding is the most challenging technical issue to realize mesh-like underwater cable networks of scientific observatories which enable long-term continuous three dimensional and real-time observations. The authors developed a new prototype of the current-to-current converter, which is the key device to realize a constant current power feeding system. The results show that the compact-sized...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.