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在一些旧型号(如58型、KE200型等)X线诊断机上的滤线器,都是采用机械油泵式滤线器。这种滤线器使用长久后,油泵缸体与活塞之间间隙增大,拉杆、拉簧等零件出现弯曲、变形,引起机械性能下降,甚至不能使用。我们有一台KE200型200毫安机的滤线器就是如此,曾多次修理,还不能用。因此,我们将该滤线器拆除.换用上海医疗器械厂生产的F30-30毫安X线机简易诊断床的电动凸轮式活动滤线器。改换后的滤线器电路只需稍作改动,另外增加一只小型电源变压器T_(10)和一只旋钮开关S_3(见图)。原电路中的滤线器启动线圈BR和时间控制接触点BTS,分别被现电路的滤线器驱
In some older models (such as 58, KE200, etc.) X-ray diagnostic machine on the filter, are used mechanical pump-type filter. After such a filter is used for a long time, the gap between the cylinder and the piston of the oil pump is increased, and the components such as the pull rod and the tension spring are bent and deformed, causing the mechanical performance to decline or even not be used. We have a KE200 200 milliamperes filter is the case, has repeatedly repaired, can not be used. Therefore, we will remove the filter.Exchange with the Shanghai Medical Equipment Factory production of F30-30 mA X-ray bed easy diagnosis of electric cam-type active filter. After the change of the filter circuit only a slight change, the addition of a small power transformer T_ (10) and a knob switch S_3 (see figure). The filter in the original circuit starts the coil BR and the time control contact point BTS, respectively, is now the circuit of the filter drive