发明名称 |
LIQUID DETECTION METHOD AND DEVICE THEREFOR |
摘要 |
A molding formed therein with a pathway in which liquid flows having its upper surface which is planer, and made of a transparent material at least in an upper part above the upper surface of the pathway, is provided, a light beam is projected to the molding at an incident angle in a range from 42 to 62 deg. with respect to the normal to the upper surface of the pathway, and an intensity of a light beam reflected upon the upper surface of the pathway or transmitted through the pathway is measured in order to surely detect the presence of the liquid in the pathway.
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申请公布号 |
CA2189907(A1) |
申请公布日期 |
1997.05.16 |
申请号 |
CA19962189907 |
申请日期 |
1996.11.08 |
申请人 |
NIHON MEDI-PHYSICS CO., LTD. |
发明人 |
IWASE, KENICHI;TAKEUCHI, HAJIME;UMEHARA, YUUKI;TAGUCHI, TAKAYUKI;FUJIOKA, SHIGERU;YAMAGUCHI, TADAO |
分类号 |
G01N21/43;(IPC1-7):G01N21/03;G01N1/10;G01N21/05;G01N21/49;G01N21/59;G01N33/487;G01N21/11;G01N1/28 |
主分类号 |
G01N21/43 |
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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