XG501型X线机故障检修一例

• 作 者: 曹广伟
• 机 构: 徐州市丰县人民医院 221700
• 出 处: 实用医技杂志
• 发表日期: 1997年10期
• 关键词: 故障检修 XG501 高压发生器 回路电流 初级回路 嗡嗡声 控制极 触发电路 触发电压 半波整流

故障现象:在摄影曝光时,控制台及高压发生器发出嗡嗡声,同时伴有仟伏表指针下跌,但毫安指示正常,透视基本正常。 分析:我考虑为高压初级回路电流过大所致。造成高压初级回路电流过大的原因有两种,可能一是高压次级击穿短路,二是高压初级回路有一主可控硅未导

Symptoms: During the exposure of the camera, the console and the high-voltage generator emit a buzzing sound, accompanied by a drop in the crouching table pointer, but the milliampere indication is normal and the perspective is basically normal. Analysis: I consider that the high-voltage primary loop current is too large. There are two reasons for the high-voltage primary loop current being too large. One may be a high-voltage secondary breakdown short circuit, and the other is that there is a main thyristor unleaded in the high-voltage primary loop.