| PANDOROS高压发生器Jmax灯亮故障检修 |
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| 引用本文： | 李国耀,张延武.PANDOROS高压发生器Jmax灯亮故障检修[J].CT理论与应用研究,1995,4(4):34-35. |
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| 作者姓名： | 李国耀 张延武 |
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| 作者单位： | 广州红十字会医院，广州军医总医院 |
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| 摘 要： | 本文分析了引发Ｊｍａｘ灯亮的三种原因。即Ｘ线管电流检测回路Ｒ３３电位计故障；ＫＶ参数值产生回路Ｖ２４管击穿故障，以及灯丝初级加热回路Ｖ２管软击穿故障，所以导致的高压发生器低电流保护，Ｊｍａｘ灯亮，不同的是前二项原因使曝光开始即刻Ｊｍａｘ灯亮。
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| 关 键 词： | 低电流保护 软击穿 高压发生器 Jmax灯亮 故障 |
Trouble-Shooting of "J_(max)" lighted in PANDOROS High Voltage Generator |
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| Li Guoyue,Zhang Yanwu Guang-zhou Red Cross Hospital Guang-zhou Liu Hua Hospital.Trouble-Shooting of "J_(max)" lighted in PANDOROS High Voltage Generator[J].Computerized Tomography Theory and Applications,1995,4(4):34-35. |
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| Authors: | Li Guoyue Zhang Yanwu Guang-zhou Red Cross Hospital Guang-zhou Liu Hua Hospital |
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| Institution: | Li Guoyue;Zhang Yanwu1) Guang-zhou Red Cross Hospital 510220) 2) Guang-zhou Liu Hua Hospital 510010 |
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| Abstract: | Three causes that can make "Jmax" bight were analysed in the Paper. They arefault of the Potentiometer (R33) in the current detection circuitry of X-ray. the breakdown of the V24 in circuit of KV reference PCB, and the soft-breakdown of the V2 in the heating circuitof prdriary of Heater. All this may causes the low current protection. But the three reasons arediferent. The "Jmax" is lighted the instant when exposure for first and second reason, and during the exposure for the third. |
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| Keywords: | s: Low current protection Soft-breakdown High voltage generator |
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