光源参数的微机自动检测

本文介绍微型计算机自动控制技术在电光源参数自动检测中的应用.利用微型计算机接口技术、光电转换技术,由微机控制步进电机,步进电机带动光栅传动,在可见光范围内逐点扫描得到对应于各波长位置的相对光强度分布值。然后通过比较法确定待测灯相对光谱能量分布,根据色度学原理及CIE关于色度计算方面的有关推荐文件计算出光通量、光效、色坐标、色温和显色指数,从而实现对白炽灯、日光灯、三基色荧光灯等电光源的光通量、光效、色座标、色温、显色指数等光参数的自动检测,解决了人们利用手工测量很难实现对上述光参数进行有效检测的难题。

Automatical Measurement of Electric Light Source Parameters byPersonal Computer

An application of personal computer control technique for automatic measurement of the parameters of electric light sources and its realization were introduced. By using the interfacing technique of personal computer and optical-electric conversion technology, controlling step motor, which is used drive monochromator, to scan light in the scope of visible light pointwise, the distribution value of luminous intensity in correspondence with each wavelength location can be obtained. Then through comparing law, the measured relative lamp spectrum energy distribution was determined. According to colorimetry principle and CIE about the relevant recommendation in the aspect of colorimeter calculating file, the luminous flux, light efficiency, colour coordinate and the colour temperature of electric light sources such as incandescent lamp, fluorescent lamp, three-cardinal-color hight effective fluorescent lamp can be calculated out. So, the parameters of electric light sources are measured automatically.