发明名称 |
Apparatus for the monitoring of the passsage of conductive objects through a tube |
摘要 |
An apparatus for detecting or otherwise monitoring, e.g. counting, each passage of a succession of conductive objects (especially graphite-sheathed ball-shaped nuclear fuel or breeder elements for the core of a nuclear reactor) through a pipe or tube having a conductive wall juxtaposed with the tip of an electrode. A high-voltage direct-current (d-c) generator is connected across the wall and the electrode in series with a high-ohmic resistor. A voltage divider is also connected across this gap and has a low-voltage portion across which a voltage drop of the order of up to 100 volts is detected as the signal which is applied to the monitoring circuit. Thus the electronic detector and counter circuit are connected across the low-voltage resistor of the voltage divider and this resistor is connected to the side of the electrode-pipe system opposite that to which the high-ohmic resistor is connected.
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申请公布号 |
US4424187(A) |
申请公布日期 |
1984.01.03 |
申请号 |
US19800204531 |
申请日期 |
1980.11.06 |
申请人 |
KERNFORSCHUNGSANLAGE JUELICH GMBH |
发明人 |
THYSSEN, HEINZ;BREUER, GUENTER |
分类号 |
G01V3/02;G06M1/10;G06M7/00;G21C17/06;(IPC1-7):G21C17/00 |
主分类号 |
G01V3/02 |
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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