一种热释电红外探测器的单目设计  

Design of the Monocular Pyroelectric Infrared Detector

作　　者：崔永俊[1,2] 贾磊[1,2] 王希鹏 赵秀梅 薛志勇 杜文略 

机构地区：[1]中北大学电子测试技术国家重点实验室,山西太原030051 [2]中北大学仪器科学与动态测试教育部重点实验室,山西太原030051 [3]中国煤炭科工集团太原研究院有限公司,山西太原030051

出　　处：《自动化仪表》2016年第4期97-99,102,共4页Process Automation Instrumentation

摘　　要：为解决普通热释电的红外探测技术误报率高、敏感度低且不能对入侵目标进行定位等问题,提出了一种基于热释电红外探测器的复眼结构的设计。结合热释电红外探测隐蔽性好、性能稳定、环境适应能力强、复眼视场角大、体积小且灵敏度高等优势,将热释材料上的电荷信号转换为电压信号,经滤波、放大后输出。通过实验表明,采用该热释电红外探测器的单目可以检测到15 m内的入侵目标,并输出脉冲电平作为报警信号。To solve the problems of high false alarm rate,low sensitivity and unable to locate intrusion targets and other issues in ordinary pyroelectric infrared detection technology,the design based on compound eye structure is proposed for pyroelectric infrared detector. Combining the advantages of pyroelectric infrared detection,including good concealment,stable performance,environmental adaptability,large viewing angle of compound eye,small size and high sensitivity,the charge signal on pyroelectric material is converted into voltage signal,and output after filtering and amplifying. Experiments show that the monocular of the designed pyroelectric infrared detector can detect intrusion target within fifteen meters,and output pulse level as an alarm signal.

关 键 词：红外探测器 菲涅尔透镜 敏感元件 滤光片 传感器 信号处理 滤波 电路设计 等效电路 

分 类 号：TH7[机械工程—仪器科学与技术] TP212[机械工程—精密仪器及机械]