发明名称 |
GAS CONCENTRATION MONITORING SYSTEM FOR MONITORING THE PRESENCE OF A GAS IN AN ENVIRONMENT SUCH AS AN UNDERGROUND WORKING OF A MINE |
摘要 |
<p>A carbon monoxide gas detector comprises a housing consisting of two enclosures 10 and 12 having ports in the wall thereof to provide a tortuous path for air entering the inner enclosure 12. A gas cell transducer 16 connected to an electrical circuit 18 provides signals indicative of gas concentration. The detector is powered from a remote supply via wires 22 and 26 and provides gas concentration signals via a wire 24 to a remote central station with a fail-safe feature wherein failure of the circuit or the detector will provide signals interpreted as dangerous gas concentrations.</p> |
申请公布号 |
IN161523(B) |
申请公布日期 |
1987.12.19 |
申请号 |
IN1984DE53219 |
申请日期 |
1984.07.03 |
申请人 |
ANGLO AMERICAN CORPORATION OF SOUTH AFRICA LTD. |
发明人 |
BOUT BERNARDUS JOHANNES;VANEEDEN ERNEST PHILLIPUS;VANDERWALT NICOLAAS IJAART |
分类号 |
G01N27/16;G01N27/00;G01N27/04;G01N27/12;G01N33/00;(IPC1-7):F17D3/04;E21F17/18;G01N15/06 |
主分类号 |
G01N27/16 |
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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