发明名称 |
Method and apparatus for detecting ink concentration |
摘要 |
A method for detecting the concentration of an ink liquid including charged particulates is disclosed. A first and a second electrodes are immersed in the ink liquid within an ink chamber. The second electrode is cleaned before a voltage pulse having a predetermined pulse width is applied to the first electrode. The voltage pulse causes a current flowing through the second electrode and a discharging current is detected. The concentration of the charged particulates in the ink liquid is detected from a peak value of the discharging current.
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申请公布号 |
US6128450(A) |
申请公布日期 |
2000.10.03 |
申请号 |
US19990315198 |
申请日期 |
1999.05.19 |
申请人 |
NEC CORPORATION |
发明人 |
SUETSUGU, JUNICHI |
分类号 |
G01R29/24;G01N27/00;G01N27/60;G03G15/10;G03G15/11;(IPC1-7):G03G15/10 |
主分类号 |
G01R29/24 |
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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