Development of the Sledge-Type Underwater Metal Detection System for Underwater Cultural Heritage Exploration
Dublin Core
Title
Development of the Sledge-Type Underwater Metal Detection System for Underwater Cultural Heritage Exploration
Description
The National Research Institute of Maritime Cultural Heritage (NRIMCH) in Republic of Korea has promoted the 4-years ‘Development Project of Underwater Cultural Heritage Exploration Techniques’ from 2013 through 2016. During the project, the metallic cultural heritage made of bronze could not be detected with the magnetometer, but NRIMCH has developed the sledge-type underwater metal detection system suitable for exploring metallic material underwater cultural heritage including bronze.
A magnetometer or metal detectors are used to detect metallic objects exposed or buried in the seabed. In case of magnetometer, the depth of exploration is deep and exploration work is fast, but there is a disadvantage that non-ferrous metals except iron is not reacted. When using a metal detector, which is a type of electromagnetic exploration, there is a method using a portable metal detector and a method of towing an antenna in a vessel. In the case of a portable metal detector, since the diver is directly using it underwater, there is a time limitation and a disadvantage that it is difficult to know the position. In addition, when the antenna is towed at the vessel, the antenna is spaced at a considerable distance from the seabed, so that the buried metal cultural heritage may not be detected. To overcome these drawbacks, this system aims to develop an antenna platform as a method for bringing the antenna of the metal detector closer to the seabed. The antenna platform is made of metal-free PVC and designed as a caterpillar. The caterpillar shape allows easy passage of obstacles in the sea floor and allows the antenna to be wrapped and protected. In addition, software was developed to verify and store location information obtained using DGPS and response values for underwater metal cultural heritage obtained through the antenna platform in real time.
A magnetometer or metal detectors are used to detect metallic objects exposed or buried in the seabed. In case of magnetometer, the depth of exploration is deep and exploration work is fast, but there is a disadvantage that non-ferrous metals except iron is not reacted. When using a metal detector, which is a type of electromagnetic exploration, there is a method using a portable metal detector and a method of towing an antenna in a vessel. In the case of a portable metal detector, since the diver is directly using it underwater, there is a time limitation and a disadvantage that it is difficult to know the position. In addition, when the antenna is towed at the vessel, the antenna is spaced at a considerable distance from the seabed, so that the buried metal cultural heritage may not be detected. To overcome these drawbacks, this system aims to develop an antenna platform as a method for bringing the antenna of the metal detector closer to the seabed. The antenna platform is made of metal-free PVC and designed as a caterpillar. The caterpillar shape allows easy passage of obstacles in the sea floor and allows the antenna to be wrapped and protected. In addition, software was developed to verify and store location information obtained using DGPS and response values for underwater metal cultural heritage obtained through the antenna platform in real time.
Creator
Yong-Hwa Jung
Young-Hyun Lee
Jin-Hoo Kim
Sang-Hee Lee
Hyun-Do Kim
Yeong-Hyun Kim
Publisher
The Museum of Underwater Archaeology
Date
11/24/2017
Rights
Yong-Hwa Jung
Young-Hyun Lee
Jin-Hoo Kim
Sang-Hee Lee
Hyun-Do Kim
Yeong-Hyun Kim
Files
Citation
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