欢迎访问《核聚变与等离子体物理》官方网站,今天是 分享到:

核聚变与等离子体物理 ›› 2019, Vol. 39 ›› Issue (3): 270-275.DOI: 10.16568/j.0254-6086.201903013

• 核聚变工程技术 • 上一篇    下一篇

大动态范围数控弧光探测器的研制

周显明,卢 波   

  1. (核工业西南物理研究院,成都 610041)
  • 出版日期:2019-09-15 发布日期:2019-09-16
  • 作者简介:周显明(1990-),男,四川乐山人,硕士研究生,从事等离子体波加热技术研究。

Development of arc detector with large dynamic range and digital control

ZHOU Xian-ming, LU Bo   

  1. (Southwestern Institute of Physics, Chengdu 610041)
  • Online:2019-09-15 Published:2019-09-16

摘要:

针对HL-2A/M 高功率微波加热系统微波窗口真空侧对弧光探测的要求,基于三级放大电路和微控制器技术,完成电路设计,研制了新型弧光探测器。增益8 挡数字可调,保护阈值以20mV 的精度0~5V 数字可调,具有远程操作和数字显示功能。在不同增益和保护阈值条件下,实验测得其响应时间最大为2.56μs,能在复杂电磁环境和不同强度干扰光的条件下稳定工作,满足系统要求。

关键词: 高功率微波, HL-2A 装置, 拉弧打火, 弧光探测

Abstract:

A new arc detector with ultra wide dynamic range was developed based on three gain adjustable amplifiers and microcontroller for the RF (radio frequency) windows in the high-power microwave heating systems on HL-2A/M tokamak. The gain is digitally adjustable with 8 levels in the main amplifier and the protection threshold is adjustable from 0 to 5V with accuracy of 20mV. Both the gain and threshold are remotely controlled with the help of a microcontroller. The measured maximum response time is 2.56μs. The arcing detectors work properly in different level of background light and in complicated electromagnetic environment.

Key words: High power microwave, HL-2A tokamak, Arc ignition, Arcing detector

中图分类号: