光敏电阻的光敏特性研究实验报告

光敏电阻的光敏特性研究 实验报告 化学实验报告单总流体力学实验报告观察种子结构实验报告观察种子结构实验报告单观察种子的结构实验报告单 光敏电阻光敏特性的研究 一、实验 设计 领导形象设计圆作业设计ao工艺污水处理厂设计附属工程施工组织设计清扫机器人结构设计 方案 气瓶 现场处置方案 .pdf气瓶 现场处置方案 .doc见习基地管理方案.doc关于群访事件的化解方案建筑工地扬尘治理专项方案下载 1.1、实验目的 1、了解光敏电阻的基本特性，测出它的光照特性曲线。 2、学习使用电脑实测。 3、学习使用DataStudio软件。 4、学习了解设计性实验的基本方法。 1.2、实验原理 光敏电阻器是利用半导体的光电效应制成的一种电阻值随入射光的强弱而改变的电阻 器，(如图1);入射光强，电阻减小，入 射光弱，电阻增大。光敏电阻器对光的 敏感性与人眼对可见光(0.4~0.76) μm的响应很接近，只要人眼可感受的 光，都会引起它的阻值变化。设计光控电 路时，通用白炽灯泡光线或自然光线作图1 光敏结构图 控制光源，但本实验采用激光做光源， 通过两偏振片控制光照强度并由角速度 传感器测出。 1.2.1光敏电阻的光照特性 光电流随照度的变化而改变的规律 称为光照特性。不同类型的光敏电阻的 光照特性不同， 大多数光敏电阻的光照 图2 某光敏电阻的光照特性 特性是非线性的。某种光敏电阻的光照 特性如图1所示。 利用光敏电阻的光照特性可以测出 一些材料的光吸收系数。 1.2.2光敏电阻特性 阻值与光强 图3为某光敏电阻的的 图3 某光敏电阻的的阻值与光强关系 关系，利用光敏电阻的光敏特性，可以 分别模拟设计一个简单的光控自动报警实验与一个光控自动照明实验。 光敏电阻的电阻与光强间关系曲线的线性关系,不可以用在线性的光感测量中. 1.3.2选用仪器列表 仪器名称 型号 主要参数 用途 Uterine within film hyperplasia syndrome, ovarian cyst, and tumor (common type), pelvic inflammatory sex mass uterine within film cancer the 5 cases prostate hyperplasia, prostate inflammatory, prostate cancer, testicular tumor (common type) cryptorchidism, testicular development not full, Deputy testosterone inflammatory, testicular inflammatory, fine SAC cyst, fine cable varicose veins, semen cyst, sheath film product liquid, fine SAC cyst, fine cable reverse the 5 cases cardiovascular system congenital heart (common type), rheumatic valve disease, expansion type, and hypertrophy type myocardial disease... (Four) about nuclear medical Qu Wan ying Editor. nuclear medical Pei Zhuguo Editor. image nuclear medical Chen haozhu Editor, practical within science Chinese medical will Editor. clinical technology operation specification nuclear medical fascicles Chinese medical will Editor. clinical clinic guide nuclear medical fascicles Pan Zhongyun Editor, clinical nuclear medical Wang Shizhen Editor, molecular nuclear medical participation revised implementation rules personnel Li Minghua, chenkemin, Geng Daoying, Liu Shiyuan, song Wang, Hu Bing, Xu Zhizhang, Zhao, Sun Xiaoguang amendment date: 2010-2-25 Medical test section physician training rules medical test section (and said test medical section) is to diagnosis, and prevention, and treatment human disease or assessment health provides information for purpose, on from human of material for biology, and microbiology, and Immunology, and biochemistry, and blood Immunology, and blood learn, and biological physics, and cytology, test of clinical two level subject, its laboratory work has to clinical provides test information Advisory (including test results explained and for further appropriate check provides recommends), and participation clinical 750接口 阻抗最大的有效输入电压范围?10 V 数据采集处理 CI7650 —— 数据采集平台、数据处理 计算机和DataStudio CI6874 电压传感器 电压范围:?10 V AC/DC 数据采集 CI6503 光敏电阻 —— —— CdS 作取样电阻 取样电阻 —— 1000Ω。 激光器、偏振片 提供光源 转动传感器、电源导线等 二、实验内容及具体步骤: 2.1、测绘光敏电阻的光照特性曲线。 (1)按右图连接好电路，电压传感器连接到750接口。 (2)光敏电阻的光源由一激光提供。并经过两偏振片调整光强后照射在光敏电阻上。其中一偏振片与角速度传感器相连到750接口。试验中保持光强从最弱到最强间变化。 3)打开(DataStudio 软件，创建一个新实验。 (4)在DataStudio 软件的窗口中设置750接口的传感器连接，并设置采样率。(5)在DataStudio 软件的窗口打开一个图表。 (5)接通光敏电阻所在电路电源; (6)打开激光器，调整两偏振片，然后调整带有角速度传感器的偏振片使照到光敏电阻处的光强最小; (7)在DataStudio 软件窗口中启动数据采集，并转动带有角速度传感器的偏振片使光敏电阻处的光强从最小到最强间变化。 (8)停止数据采集。断开光敏电阻电源，关了激光器。 (9)在DataStudio中作一个计算: I,U1/1000?y轴(光电流): ……………………((其中10表示直流电源电压10V，其中 U1为电压、通道A的值其中1000表示直流电源电压1000Ω) E,sin,*sin,?x轴(相对光照强度):……………………(其中θ为偏振片从零相位开始0E 转过的角度) o level subject, its laboratory work has to clinical provides test information Advisory (including test results explained andmmunology, and biochemistry, and blood Immunology, and blood learn, and biological physics, and cytology, test of clinical twand I human disease or assessment health provides information for purpose, on from human of material for biology, and microbiology,physician training rules medical test section (and said test medical section) is to diagnosis, and prevention, and treatment 25 Medical test section -2-in, Geng Daoying, Liu Shiyuan, song Wang, Hu Bing, Xu Zhizhang, Zhao, Sun Xiaoguang amendment date: 2010dical Wang Shizhen Editor, molecular nuclear medical participation revised implementation rules personnel Li Minghua, chenkemear mecal fascicles Chinese medical will Editor. clinical clinic guide nuclear medical fascicles Pan Zhongyun Editor, clinical nuclhaozhu Editor, practical within science Chinese medical will Editor. clinical technology operation specification nuclear mediChen cardial disease... (Four) about nuclear medical Qu Wan ying Editor. nuclear medical Pei Zhuguo Editor. image nuclear medical cases cardiovascular system congenital heart (common type), rheumatic valve disease, expansion type, and hypertrophy type myo the 5 ammatory, fine SAC cyst, fine cable varicose veins, semen cyst, sheath film product liquid, fine SAC cyst, fine cable reverseicular tumor (common type) cryptorchidism, testicular development not full, Deputy testosterone inflammatory, testicular inflfilm cancer the 5 cases prostate hyperplasia, prostate inflammatory, prostate cancer, testUterine within film hyperplasia syndrome, ovarian cyst, and tumor (common type), pelvic inflammatory sex mass uterine within 2urther appropriate check provides recommends), and participation clinicalfor f 三、数据记录及数据处理 3.1、测绘光敏电阻的阻值随相对光强的变化曲线。 (1)、数据记录(原始数据) 图4 U1注:上图中电压、通道A(记为)是采样电阻(R=1000Ω)的电压;角位置通道1和2(度)，为偏振片又零相位开始转过的角度(记为θ)。 (2)、对以上数据作以下计算: U,10,U1?光敏电阻两端的电压: ……………………(其中10表示直流电源电压10V， U1其中为电压、通道A的值) I,U1/1000?光电流: ……………………(其中1000表示直流电源电压1000Ω) R,U/I?光敏电阻的阻值: E,sin,*sin,?相对光照强度:……………………(其中θ为偏振片又零相位开始转过的0E 角度) (3)在DataStudio 中做以上计算，并得以下曲线: 图5 图6 注:上图1为光敏电阻加上取样电阻的光强特性曲线。 U,10,U1(4)由:?光敏电阻两端的电压: R,U/I ?光敏电阻的阻值: E ?相对光照强度: ,sin,*sin,0E 得光敏电阻的光照特性，上图6 R,U/I(5)由: ?光敏电阻的阻值: E,sin,*sin, ?相对光照强度: 0E 图7光敏电阻的阻值与相对光强曲线 由光敏电阻的电阻特性，知道其比较适合做光控开关，因为达到某一光强后电阻迅速变化。 可以用来分别模拟设计一个简单的光控自动报警实验与一个光控自动照明实验。 (6)数据 分析 定性数据统计分析pdf销售业绩分析模板建筑结构震害分析销售进度分析表京东商城竞争战略分析 :光敏电阻光电流与光照强度关系图( 见图6)以及光敏电阻阻值与光照强度关 系图( 见图7) . 从图7 中可以看出, 光敏电阻的阻值随着光照强度的增加而减小. 但不是 线性关系, 即光敏电阻的阻值与光强不成反比关系, 所以光敏电阻不可以用在线性的光感测量 中. 误差分析:受背景光影响。温度变化对光敏电阻的影响。 四、实验结果陈述与总结 4.1结果陈述 (1)通过实验得到光敏电阻的光照特性曲线，为非线性曲线。 (2) 通过实验得到光敏电阻的电阻与光强间关系曲线，不是线性关系, 即光敏电阻的阻值与光强不成反比关系, 因此光敏电阻不可以用在线性的光感测量中.可用于做光控开光等。 (3)通过次实验，基本学会了使用计算机及DataStudio软件进行实验。并初步了解了设计性实验的基本方法。 4.2实验总结. 25 Medical test section -2-in, Geng Daoying, Liu Shiyuan, song Wang, Hu Bing, Xu Zhizhang, Zhao, Sun Xiaoguang amendment date: 2010dical Wang Shizhen Editor, molecular nuclear medical participation revised implementation rules personnel Li Minghua, chenkemear mecal fascicles Chinese medical will Editor. clinical clinic guide nuclear medical fascicles Pan Zhongyun Editor, clinical nuclhaozhu Editor, practical within science Chinese medical will Editor. clinical technology operation specification nuclear mediChen cardial disease... (Four) about nuclear medical Qu Wan ying Editor. nuclear medical Pei Zhuguo Editor. image nuclear medical cases cardiovascular system congenital heart (common type), rheumatic valve disease, expansion type, and hypertrophy type myo the 5 ammatory, fine SAC cyst, fine cable varicose veins, semen cyst, sheath film product liquid, fine SAC cyst, fine cable reverseicular tumor (common type) cryptorchidism, testicular development not full, Deputy testosterone inflammatory, testicular inflfilm cancer the 5 cases prostate hyperplasia, prostate inflammatory, prostate cancer, testUterine within film hyperplasia syndrome, ovarian cyst, and tumor (common type), pelvic inflammatory sex mass uterine within 4urther appropriate check provides recommends), and participation clinicalfor f o level subject, its laboratory work has to clinical provides test information Advisory (including test results explained andmmunology, and biochemistry, and blood Immunology, and blood learn, and biological physics, and cytology, test of clinical twand I human disease or assessment health provides information for purpose, on from human of material for biology, and microbiology,physician training rules medical test section (and said test medical section) is to diagnosis, and prevention, and treatment ?本实验测得光敏电阻的光强特性，得到所用光敏电阻的光强特性为非线性，比较接近乘幂拟 合。光敏电阻的电阻与光强间关系曲线的线性关系,不可以用在线性的光感测量中. ?本实验中，利用计算机采集数据，体现出方便、快捷、成本极低的优势。