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北京产 F113-Ⅰ型医用 X 线电视系统中的透视自动亮度(KV)控制器(IBS),主要由比较单元调整单元和电源部分组成。由比较单元输出控制信号使调整单元的极化继电器接点 J_(3-9)、10和 J_(4-9)10动作,去控制高低 KV 控制继电器 J_5、J_6动作,由此使伺服电机 DD 正反转,带动调压器滑臂来调整高压发生器初级电压,从而自动控制透视 KV。当达最低或最高 KV 时,设有限位保护开关控制电路见附图。鉴于 IBS 的应用渐多,特将我们排除的两例不
Perspective automatic brightness (KV) controller (IBS) in Beijing F113-Ⅰ medical X-ray television system mainly consists of the comparison unit adjustment unit and the power supply part. The control unit outputs a control signal to make the polarization relay contacts J_ (3-9), 10 and J_ (4-9) 10 of the adjusting unit operate to control the operation of the high and low KV control relays J_5 and J_6 to thereby make the servo motor DD positive Reversal, driven by voltage regulator slide arm to adjust the high voltage generator primary voltage, which automatically control the perspective KV. When the minimum or maximum KV, with limit protection switch control circuit shown in the drawings. In view of the more and more applications of IBS, we will exclude two exceptions