计算机显示器能源效率标识计量检测的影响因素

Influence factors of metrology testing for energy efficiency label of computer monitors

实验验证结果表明,在计算机显示器能源效率标识计量检测工作中,亮度计与被测显示器的距离及两者的垂直程度都会对亮度测量结果产生影响,尤其是垂直程度偏出5°角则带入较大误差。能耗测量时,显示器进入正常工作状态的稳定时间在40 min为宜。显示器与视频信号发生器的连接状态对关闭状态能耗测量结果影响不大。

The experimental veriifcation of meteology testing for energy efifciency labels of computer monitors shows that luminance measurement results are affected by the distance and the verticality between the luminance meter and the computer monitor. Especially, the vertical angle deviation of exceeding 5-degree will bring greater errors. When testing the energy consumption, it is appropriate that the computer monitor maintains steady working state for 40 min. The link status between monitor and video generator has few effect on the measurement results of energy consumption when the monitor is in a closed state.