发明名称 |
ANLEGGNING FOR OVERVAKNING AV LECKDETEKTORER VID OLJELEDNINGAR |
摘要 |
<p>A system employing a plurality of electronic oscillators for generating test signals at spaced locations remote from a selection point. The oscillators are coupled to a gathering line for petroleum products, each being located adjacent to an acoustic detector coupled to the line for signaling the presence of a leak within its range. A digital selector which manually generates a given number of pulses is located at the selection point. There is a binary counter at each oscillator to receive the pulses. And, there is also a binary encoder at each oscillator to determine which one will be energized, depending upon the number of pulses generated by the selector.</p> |
申请公布号 |
SE7613833(A) |
申请公布日期 |
1977.06.11 |
申请号 |
SE19760013833 |
申请日期 |
1976.12.09 |
申请人 |
* TEXACO DEVELOPMENT CORPORATION |
发明人 |
D A * MORRIS;N E * FLOURNOY;T W * LANGLEY |
分类号 |
E21B47/10;E21B47/12;G01M3/00;G01M3/18;G01M3/24;H04Q9/16;(IPC1-7):08B29/00 |
主分类号 |
E21B47/10 |
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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