液晶与显示, 2014, 29 (4): 538, 网络出版: 2014-06-10   

输出光强恒定的液晶自动调节系统

Liquid crystal self-regulation system of exporting fixed light intensity
作者单位
河北工业大学 理学院, 天津 300401
摘要
为了控制某一环境下光的强度, 提出了输出光强恒定的液晶自动调节系统, 并对系统的原理及功能进行了研究。介绍了液晶电光调制原理及光电传感器和单片机控制原理。对系统的开发进行了阐述, 详细介绍了构成系统的每一个模块的结构及工作原理。该系统具有以下4个功能: 维持特定空间光照强度不变, 调节特定空间内的光照强度, 显示当前工作状态, 测试液晶盒电光特性曲线。该系统适用于恒定光强环境和由光能转化的恒温系统。
Abstract
In order to control the light intensity of a certain environment, a liquid crystal self-regulation system of exporting fixed light intensity is put forward and its principle and functions is also studied. First, the electric-optic modulation principle using liquid crystal and the control principle of photoelectric sensor and single-chip microcomputer are introduced. Then, the exploitation of this system is illustrated and the configuration and the operating principle of every module are introduced in detail. This system has four functions as follows: maintaining light intensity invariant in a specific space; adjusting light intensity in a given space; displaying the current working state; testing the liquid crystal′s electro-optical curve. This system is suitable for the constant light intensity environment and the constant temperature system which makes use of light energy.

叶文江, 苏军红, 刘晓梦, 马志达, 黄媛媛. 输出光强恒定的液晶自动调节系统[J]. 液晶与显示, 2014, 29(4): 538. YE Wen-jiang, SU Jun-hong, LIU Xiao-meng, MA Zhi-da, HUANG Yuan-yuan. Liquid crystal self-regulation system of exporting fixed light intensity[J]. Chinese Journal of Liquid Crystals and Displays, 2014, 29(4): 538.

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