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- W2891361239 abstract "基于红外热释电效应原理,结合火焰的特征,提出了用双通道参比来判定火情的方法.采用一个通道的传感器敏感火焰的红外辐射,另一个通道获取背景辐射的方案,通过后续的放大滤波电路,对双路信号进行放大、带通滤波,通过带有A/D的单片机对双路信号进行采集后,再对两路信号的变化值进行对比判定.相比于背景通道,如果火焰通道的增量超过一定的阀值,并且维持若干时间段,就可判定火情发生.实践中发现,该方法反应迅速,判断准确,误判率低,能及时准确地判定是否有火情产生." @default.
- W2891361239 created "2018-09-27" @default.
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- W2891361239 date "2008-01-01" @default.
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- W2891361239 title "Application of Pyroelectric Infrared Sensors in the Detector of Flame" @default.
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