BH1710FVC数字照度传感器的研究

摘要

文中主要研究了对光源灵敏度接近人类视觉的BH1710FVC型数字照度传感器.利用单片机与该传感器的I2C总线通讯接口连接,设计成简易的高精度照度测量电路.将光源照度测量值与光功率检测仪测量值比较,表明该传感器的照度测量值与光功率基本成线性关系;而在光源照度不变的情况下,该传感器的测量灵敏度、测量范围远大于光功率计.该设计方法可以广泛用于对光照灵敏度要求较高的场所、仪器仪表、控制系统等.%This paper mainly analyzed the BH1710FVC digital illuminance sensor,which was approximate to the human's eyes for measuring the spectral responsibility for all kinds of light source. This sensor adopted I C bus communication to combine with MCU as a design of a measuring circuit. The experimental result shows that the photometric quantity has a liner relationship with the light power meter. What's more, under the condition of the same illuminance, the sensitivity and range of measurement far outweigh the light power meter. The sensor can be widely applied to the machine or control system of relatively high demand for spectral responsibility.