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National Repository of Grey Literature 2 records found  Search took 0.09 seconds. 
Methods for searching and documenting optical cables
 Havliš, Ondřej ; Křepelka, Václav (referee) ; Filka, Miloslav (advisor)
The purpose of this bachelor thesis is a description of searching for optical cables with metallic elements and EMS markers below the earth surface by suitable method and the possibility of recording and documentation of optical cables in a geographic information system ArcGIS. In the beginning there is a mention of an optical cable in particular of its the most important part, which is an optical fiber. Further there is the purpose what the optical fiber in the telecommunications world of techniques was developed for. Then there are the various advantages of the optical fiber described. This project also deals with the various methods of searching the optical cables using metallic elements. It is a called Galvanic and Inductive method, which are used to search for the optical cable by using the enclosed metallic lines, which, with the proper connection to a receiver, generates electromagnetic fields around. Another way to search the fiber optic cable is realized by the EMS markers. There are various types of passive electronic tags described. These electronic passive tags are manufactured in different color, which is used for marking the various branches of networks. There is the possibility of documentation of the optical cables by using ArcGIS geographic system from ERSI mentioned in the project. There is its structure and func-tion of individual subprograms in detail described. In the chapter GSM there is an analysis of operating principle of the system. At the end of this thesis the laboratory task is suggested. It describes the searching for fiber optic cable and the other metallic circuits by passive markers and iD markers.
Detailed record
Methods for searching and documenting optical cables
 Havliš, Ondřej ; Křepelka, Václav (referee) ; Filka, Miloslav (advisor)
The purpose of this bachelor thesis is a description of searching for optical cables with metallic elements and EMS markers below the earth surface by suitable method and the possibility of recording and documentation of optical cables in a geographic information system ArcGIS. In the beginning there is a mention of an optical cable in particular of its the most important part, which is an optical fiber. Further there is the purpose what the optical fiber in the telecommunications world of techniques was developed for. Then there are the various advantages of the optical fiber described. This project also deals with the various methods of searching the optical cables using metallic elements. It is a called Galvanic and Inductive method, which are used to search for the optical cable by using the enclosed metallic lines, which, with the proper connection to a receiver, generates electromagnetic fields around. Another way to search the fiber optic cable is realized by the EMS markers. There are various types of passive electronic tags described. These electronic passive tags are manufactured in different color, which is used for marking the various branches of networks. There is the possibility of documentation of the optical cables by using ArcGIS geographic system from ERSI mentioned in the project. There is its structure and func-tion of individual subprograms in detail described. In the chapter GSM there is an analysis of operating principle of the system. At the end of this thesis the laboratory task is suggested. It describes the searching for fiber optic cable and the other metallic circuits by passive markers and iD markers.
Detailed record

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