The effect of circuit performance parameters on plate voltage stability, screen voltage stability and automatic brightness control are studied, and the developed circuit is compared with the external sample circuits in the main electric performances. 研究电路性能参数对微光管电源的板压稳定性、屏压稳定性和ABC(自动亮度控制)性能的影响。比较研制电路与国外样品电路在主要电性能方面的差异及优劣。
On the basis of video-servo control method, the system achieves automatic brightness control of electronic endoscope. 采用彩色面阵CCD视频驱动方式,实现了医用电子内窥镜的自动亮度控制。
The automatic brightness control system is another design. The design includes the average and peak area exposure measurement using FPGA. 自动亮度控制硬件系统作为设计的另一个环节,利用FPGA完成了峰值测光与区域测光的设计。
Take real-time acquisition parameters for automatic control, parameter selection outside brightness, average speed and traffic volume as the input of the controller, calculated by the control algorithm of each brightness. 其中自动控制采取实时采集参数的方案,参数选取洞外亮度、平均车速、交通量作为控制器的输入,通过控制算法计算出各段亮度,得到了优化的照明设计。
Because of the current image intensifiers are provided by the traditional DC power supply which have the automatic brightness control ( ABC) function, and the realization of the ABC function at the expense of image intensifier quality for the price. 由于国内现有像增强器由具有自动亮度控制(ABC)功能的传统直流电源供电,而ABC功能的实现是以牺牲成像质量为代价的。