发明名称 |
Method of retrieving a liquid sample, a suction lysimeter, a portable suction lysimeter, a lysimeter system, and a deep lysimeter |
摘要 |
A method of retrieving a liquid sample comprises providing a portable lysimeter including a semi-permeable membrane and a chamber in fluid communication with the semi-permeable membrane; making a hole at a site from which a liquid sample is desired; evacuating the chamber by applying a vacuum to the chamber; lowering the portable lysimeter into the hole; obtaining a sample in the chamber; and retrieving the lysimeter from the bore; wherein it is not necessary to backfill the bore. A portable lysimeter includes a semi-permeable member and a chamber in fluid communication with the semi-permeable membrane.
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申请公布号 |
US6609434(B2) |
申请公布日期 |
2003.08.26 |
申请号 |
US20020040021 |
申请日期 |
2002.01.03 |
申请人 |
THE UNITED STATES OF AMERICA AS REPRESENTED BY THE DEPARTMENT OF ENERGY |
发明人 |
HUBBELL JOEL M.;SISSON JAMES B. |
分类号 |
E02D1/06;G01N1/14;G01N7/10;G01N33/24;(IPC1-7):G01N1/00 |
主分类号 |
E02D1/06 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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