发明名称 |
Method of radiographic inspection of wooden members |
摘要 |
The invention is a method of radiographic inspection of a wooden specimen 11 for internal defects which includes the steps of introducing a radiopaque penetrant into any internal defects in said specimen 11 through surface openings therein; passing a beam of radiation through a portion of the specimen to be inspected; and making a radiographic film image of the radiation passing through said specimen, the radiopaque penetrant in said specimen absorbing a portion of said radiation passing therethrough, thereby enhancing the resulting image of said internal defects in said specimen 11.
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申请公布号 |
US4899356(A) |
申请公布日期 |
1990.02.06 |
申请号 |
US19870125678 |
申请日期 |
1987.11.25 |
申请人 |
THE UNITED STATES OF AMERICA AS REPRESENTED BY THE ADMINISTRATOR OF THE NATIONAL AERONAUTICS AND SPACE ADMINISTRATION |
发明人 |
BERRY, MAGGIE L.;BERRY, JR., ROBERT F. |
分类号 |
G01N23/18 |
主分类号 |
G01N23/18 |
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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