| 双向照度数字测光仪 |
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| 引用本文： | 周筑文,吕泉,祝乾松.双向照度数字测光仪[J].贵州大学学报(自然科学版),2000,17(2):106-110. |
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| 作者姓名： | 周筑文 吕泉 祝乾松 |
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| 作者单位： | 贵州教育学院物理系，贵阳 550003 |
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| 基金项目： | 贵州省教育厅科研项目，， |
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| 摘 要： | 双向照度数字测光仪是一种数字测光表，它采用光敏元件（ＳＰＤ等），ＣＭＯＳ数字集 路、语音集成电路、Ａ／Ｄ转换器以及ＬＣＤ液晶显示顺等组成，对光照度进行声光及数字处理，能在一个大照度范围指示光照度正常，当光照度低于该照度范围的下限（低照度）或高于该照度范围的上限（强照度）时，电路能自动发出光照度过弱或过强的声光提示以及ＬＣＤ数字照度显示，且电路能自动作出相应的指令指令控制信号，解决了上前照度计（或测
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| 关 键 词： | 双向照度 光照度 曝光值 数字测光 |
| 文章编号： | 1000-5269(2000)02-0106-05 |
| 修稿时间： | 2000年2月16日 |
Bilimit Illumination Photometer |
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| Zhou ZhuWeng,Lui Qiang,Zhu Qiansong.Bilimit Illumination Photometer[J].Journal of Guizhou University(Natural Science),2000,17(2):106-110. |
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| Authors: | Zhou ZhuWeng Lui Qiang Zhu Qiansong |
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| Institution: | Department of Physicas Guizhou Educational College Guiyang 550003 |
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| Abstract: | Bilimit illumination photometer is an date photometer, it is made up fo Siphotodiode (SPD), CMOS digital integrated circuit and language-music integrated circuit, analog digital converter (A/D) and lighid crysal display (LCD). The photometer measare light in date processing, it conform to wide standard illumination range when il luminance rise above the high limit of the illumination range or go down the low limit of is, the cincuit make a show of sound and light and ciguid crystal date display. And also it auto matieally controll flash-circuit in low illumination. So it conform to the wide illumination range of from zero to 20000Lx and dilimit illumination date measuring. |
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| Keywords: | bilimit illuminance illuminance exposure date photomeasuring |
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