Technical Introduction: "Detection of Special Underground Shelters Using High-Frequency CSMT Exploration Method"
Confirmed high accuracy in practical experiments compared to other exploration methods!
At Geochronology Japan Co., Ltd., we can detect special underground cavities using the "High-Frequency CSMT Exploration Method" with cavity scanners. This exploration method allows us to determine the location of cavities without setting up a grid of measurement lines by utilizing the shadow effect. This technique has made it possible to detect high-resistivity materials, which were previously considered difficult to identify, thanks to the "Near-Field Amplifier Effect." 【Features】 ○ Grasp the approximate location of cavities across a wide investigation area ○ Determine the location of cavities with high resolution → The "Near-Field Amplifier Effect" reveals what was previously invisible with existing methods ○ Achieve a high soil cover ratio (depth to cavity / height of cavity: H/d ratio) ○ High versatility ○ Registered with NETIS, Patent No. 4229371 obtained For more details, please contact us or download the catalog.
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basic information
【Technical Introduction】 ○Measurement Target: Underground cavities above groundwater level up to a depth of 30m ○Horizontal Resolution: 25cm to 1m (at a depth of 15m) ○High Accuracy Rate: High accuracy rate confirmed through experimental verification compared to other exploration methods (Kagoshima University report) ○Terrain Constraints: Surveys can be conducted on asphalt surfaces, forests, wastelands, short measurement lines, and undeveloped land ○Industry-Academia Collaboration: Saga University ○Exploration Case: Hioki City, Kagoshima Prefecture (Nov. '06) Accuracy Rate 67% ●For more details, please contact us or download the catalog.
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Company information
GeoChronology Japan Co., Ltd. is a geological survey company that conducts rock and mineral appraisal, geological age measurement, hot spring water resource investigation, and cavity surveys. We perform "cavity surveys" using high-frequency CSMT exploration methods, "geological age measurement" using TL (thermoluminescence) methods, as well as computer application development and comprehensive analysis.