“passive infrared detectors”的概念、定义、翻译、参考文献-科学参考

单词	passive infrared detectors
释义	passive infrared detectors Encyclopedia 工学入侵探测器释 passive infrared detectors被动红外探测器通过探测目标移动时红外辐射能量的变化而产生触发并发出报警信号的设备，由光学系统、热释电传感器、放大电路、信号处理电路、输出电路组成。探测器本身不发射任何能量，只被动接收、探测来自环境的红外辐射。
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