发明名称 |
System for measuring foreign materials in liquid |
摘要 |
A system for measuring a foreign material in a liquid, includes a sampling section, vacuum deaerators, foreign material measuring sensors. The sampling section prepares a sample liquid containing various foreign materials having particles of different sizes and numbers and a calibration standard liquid containing particles of known sizes and numbers. The vacuum deaerators deaerate gases mixed in the sample and calibration standard liquids. The sensors detect the foreign materials in the deaerated liquids. These sensors are arranged in front of the deaerators, respectively.
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申请公布号 |
US4779451(A) |
申请公布日期 |
1988.10.25 |
申请号 |
US19870014787 |
申请日期 |
1987.02.13 |
申请人 |
HITACHI, LTD. |
发明人 |
EZAWA, MASAYOSHI;WAKANA, SHIGERU;MISUMI, AKIRA;TOMITA, YOSHIFUMI;HIRATSUKA, YUTAKA |
分类号 |
G01N15/00;G01N15/06;G01N21/05;G01N21/85;(IPC1-7):G01N15/07 |
主分类号 |
G01N15/00 |
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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