论文部分内容阅读
ＢＭＤ—１型模拟定位机是用于医疗单位对肿瘤病人进行放疗前的定位和特殊外科定位手术。该产品的电控系统大多采用继电器控制，这些继电器线圈的阻值很小，如其内部线圈短路，将会导致继电器触点吸合不牢，用一般的万用表又很难测出其内部是否短路，给维修带来了困难，影响了
The BMD-1 analog positioner is used for positioning and special surgical positioning of medical patients before radiotherapy for cancer patients. The electronic control system of this product is mostly controlled by relays. The resistance of these relay coils is very small. If the internal coils are short-circuited, it will cause the relay contacts to stick loose. It is difficult to measure whether the internal circuit is short-circuited by a common multimeter. Difficulties in maintenance have affected