摘要
利用硅光电池将接收到的光信号转换成电信号,然后利用A/D转换器ICL7107将输入的模拟电压信号转化成数字信号,再通过LED共阳极数码管将该输出值直接显示,由此构成数字照度计。该照度计制作简单,读数方便,费用少。
Silicon pv changes the optical signal into the electronic signal.The analogy voltage is changed to digital one by the A/D（analog to digital） converter ICL7107.The signal is displayed by the LED common positive pole digital tube.So a digital illumination meter is made of them.
出处
《实验技术与管理》
CAS
北大核心
2010年第3期57-60,共4页
Experimental Technology and Management
关键词
照度计
硅光电池
共阳极数码管
illuminance meter
silicon pv
common positive pole digital tube
