光电烟温复合探测器

Multisensor Detector for Smoke and Heat

提出了一种光电烟温复合探测器，它利用光敏元件接收烟雾粒子对红外脉冲光的散射信号，并利用半导体感温元件检测温度变化，经大险探测算法处理后输出相应的报警信号。这种探测器不仅保留了普通光电烟雾探测器对阴燃火的高探测灵敏度，而且克服了普通光电烟雾探测器不能响应带温升的黑烟火的致命缺点，同时探测器还具有利用火险探测算法处理传感信号、产生多级报警和传感器与控制器通信等智能化．功能，可以与控制器构成火险自动探测系统。

A multisellsor detector for smoke and heat is proposed. The IR photodiode is used as scattered light smoke detection device and semiconductor element is used as heat detection device for fire detection. Sensor signals are processed by a fire detection algorithm.The multisensor not only has a high sensitivity for smouldering fire smoke but also detects black smoke fire with heat very well. lt has functions of signal processing with fire detection algorithm, multi level alarms and communication. It can be used in automatic fire detection systems.