发明名称 |
PARTICLE DETECTOR WITH DUST REJECTION |
摘要 |
<p>A system and method of reducing the incidence of false alarms attributable to dust in smoke detection apparatus. The method includes obtaining at least two sample air flows, subjecting a first airflow to particle reduction and measuring the level of particles in the first airflow and generating a first signal indicative of the intensity. The method also includes measuring the level of particles in the second airflow and generating a second signal indicative of the intensity. The first signal is compared to a predetermined alarm level and, if the alarm level is achieved, the first and second signals are subsequently compared and an output signal is generated based on the relative difference between the first and second signals.</p> |
申请公布号 |
WO2012174593(A1) |
申请公布日期 |
2012.12.27 |
申请号 |
WO2012AU00711 |
申请日期 |
2012.06.21 |
申请人 |
XTRALIS TECHNOLOGIES LTD;AJAY, KEMAL;ALEXANDER, BRIAN |
发明人 |
AJAY, KEMAL;ALEXANDER, BRIAN |
分类号 |
G08B17/10 |
主分类号 |
G08B17/10 |
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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