首页>
外国专利>
METHOD AND APPARATUS FOR UNDERGROUND DEPOSIT DETECTION IN WATER COVERED AREAS
METHOD AND APPARATUS FOR UNDERGROUND DEPOSIT DETECTION IN WATER COVERED AREAS
展开▼
机译:水覆盖地区地下沉积物探测的方法和装置
展开▼
页面导航
摘要
著录项
相似文献
摘要
A plurality of gas sample collecting containers are distributed in a predetermined pattern from a vehicle. The containers are cup shaped but weighted so that the open end sinks first and engages the subaqueous earth laer. Gas migrating upwardly through the earth is caught by the inverted cup. The gas sample may be either collected in a separate container or exposed to a detector material located above the expected water level. The sample collecting containers may be retrieved by means of marker floats, magnetic grappling devices or self actuated flotation devices.
展开▼