一种基于光电负阻器件的新型阈值可调光传感器(英文)  

A New-style Light Sensor with Adjustable Threshold Based on Photoelectronic Negative Resistance Devices

作　　者：王晓卓[1] 张世林[1] 郭维廉[1] 张培宁 

机构地区：[1]天津大学电子信息工程学院,天津300072 [2]宣化通信学院,河北宣化075100

出　　处：《光电子．激光》2003年第7期701-704,共4页Journal of Optoelectronics·Laser

摘　　要：将硅光电负阻器件与发光二极管封装在一起,利用硅光电负阻器件的双稳和自锁特性,制成了一种新型的非线性阈值可调光传感器。研究表明,该光传感器不仅可实现对信号的光电耦合,还可实现设定阈值,比较判断和输出驱动等一系列信号处理功能;同时它结构简单,调整方便。A newstyle nonlinear light sensor of adjustable threshold has been fabricated by packaging a silicon photoelectronic negative resistance device and an LED together,and using the photobistable and selflocking characteristics of the negative resistance device.It is shown this light sensor can realize the photoelectronic coupling of signals,and a series of signal processing functions such as threshold setting,comparing,and output driving.It also has a simple structure and can be modulated conveniently.

关 键 词：硅光电负阻器件 非线性光耦合器 光学双稳态 光传感器 阈值可调 

分 类 号：TP212[自动化与计算机技术—检测技术与自动化装置] TN364.1[自动化与计算机技术—控制科学与工程]