发明名称 |
Real time usage monitor and method for detecting entrapped air |
摘要 |
A dispensing system for feeding paste through a screen onto a workpiece monitors the position of a piston applying pressure to the paste with a linear variable differential transformer and sets limits on the slope of the piston displacement is a measure of the feed rate and the "spring back" of the piston when pressure is released, as a measure of trapped air in the system.
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申请公布号 |
US7350423(B2) |
申请公布日期 |
2008.04.01 |
申请号 |
US20040707812 |
申请日期 |
2004.01.14 |
申请人 |
INTERNATIONAL BUSINESS MACHINES CORPORATION |
发明人 |
LONG DAVID C.;MILLER JASON S. |
分类号 |
G01F1/38;B67D7/08;G05D7/06 |
主分类号 |
G01F1/38 |
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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