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TV -1型通用型医用X线电视系统 ,是基层医院普及型电视系统 ,常出现透视时伺服电机带动kV的调整滑臂不随被照体的厚薄变化而变化 ,呈失控状态。透视自动亮度控制(IBS) ,是通过电视系统送来的随视频信号变化而变化的(IBS)信号 ,与亮度控制电路的基准电压比较后
The TV-1 type universal medical X-ray television system is a popular type of television system in grass-roots hospitals. It often appears that the servo-motor-driven kV-adjusting slide arm does not change with the thickness of the illuminated body when it is in perspective, and it is out of control. Perspective automatic brightness control (IBS) is an IBS signal that changes with the video signal sent from the TV system and is compared with the reference voltage of the brightness control circuit.