发明名称 |
CLASSIFYING SYSTEM AND FINE PARTICLE MEASURING DEVICE |
摘要 |
A classifying system for retrieving a specified particle size range after being classified. In a preferable embodiment, an electric field for classifying charged fine particles according to electric mobility is generated by a center electrode (3) and an outside electrode (4). A sheath gas supply unit (7) is provided at the upper portion of a housing (1). An aerosol supply unit (11), having an introducing port (11a) on the outside electrode (4) side in a classifying region (5) and supplying charged aerosol at a constant flow rate from the introducing port (11a), is provided. A large-particle-size-side discharge unit (13), having a discharge port (13a) on the outside electrode (4) side and discharging that part of charged fine particles in classified charged aerosol that has at least a specified particle size at a constant flow rate along with part of sheath gas, is provided on the downstream side in a sheath gas flow in the classifying region (5). A detector (18) for detecting as an electric quantity the remaining number of charged fine particles fed along with sheath gas is disposed at the lower portion of the housing (1). |
申请公布号 |
WO2007072942(A1) |
申请公布日期 |
2007.06.28 |
申请号 |
WO2006JP325593 |
申请日期 |
2006.12.22 |
申请人 |
SHIMADZU CORPORATION;OKUDA, DAIJI;OKUDA, HIROSHI;INOUE, FUJIO |
发明人 |
OKUDA, DAIJI;OKUDA, HIROSHI;INOUE, FUJIO |
分类号 |
G01N15/02;G01N15/06;G01N27/60 |
主分类号 |
G01N15/02 |
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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