Research on circuit with high voltage and ramp signal based on streak camera
-
摘要: 为了实现单次扫描条纹相机扫描控制模块中斜坡信号的高电压阈值、高线性斜坡、电路简单且易调试的目标，提出了利用开关放电产生大电流高压脉冲和恒流充电斜坡线性好的优点，设计出一款单次扫描线性高压斜坡信号产生电路，该电路可通过调节电阻的大小，实现线性斜坡信号斜率和线性率的调节和优化。实验表明，该电路所产生的线性高压斜坡信号可提供幅值高达1 700 V的电压，产生的斜坡非线性精度小于3%，扫描时间可实现200 ns至50 μs可调。与传统高压斜坡信号电路相比，电路结构简单，调试方便，斜坡时间可实现纳秒到微秒的无级调整，这可有效提高条纹相机扫描时间精度，有效减小电路串扰等问题。Abstract: In order to solve the problem of high voltage threshold, high linear slope, simple circuit and easy debugging of ramp signal in the scan control module of streak camera, we propose the advantages of high voltage generated by switching discharge and good linearity of constant current charging slope, and we design a simple circuit structure, higher voltage. The circuit can adjust and optimize the slope and linear rate of the linear slope signal by adjusting the resistance. The experimental results show that the linear high voltage ramp signal generated by the circuit can provide a voltage of up to 1 700 V, the nonlinear precision of the ramp is less than 3%, the scanning time is adjustable from 200 ns to 50 μs. Compared with the traditional high voltage ramp signal circuit, the circuit has a simple structure, convenient debugging, and the ramp time can be adjusted steplessly from nanoseconds to microseconds. This can effectively improve the scanning time accuracy of the fringe camera and effectively reduce problems such as circuit crosstalk.
-
Key words:
- streak camera /
- single sweep circuit /
- ramp signal /
- better linearity /
- high voltage
-
图 2 不同电压不同扫程的实测波形
Figure 2. Measured waveform with different voltage and different sweep range
图 5 触发输入10 V-280 pF的晃动测试波形
Figure 5. Sloshing test waveform of trigger input 10 V-280 pF
-
[1] 杨咏梅. 基于条纹相机的超快二维成像技术研究[D]. 成都: 电子科技大学, 2020: 5-8Yang Yongmei. Research on ultrafast two-dimensional imaging technology based on streak camera[D]. Chengdu: University of Electronic Science and Technology of China, 2020: 5-8 [2] Campillo A J, Kollman V H, Shapiro S L. Ultrafast streak camera[J]. Science, 1975, 189: 410. doi: 10.1126/science.189.4201.410.b [3] 王哲斌, 杨冬, 张惠鸽, 等. 光学条纹相机时间扫描性能应用[J]. 强激光与粒子束, 2012, 24(8):1836-1840 doi: 10.3788/HPLPB20122408.1836Wang Zhebin, Yang Dong, Zhang Huige, et al. Sweep time performance of optic streak camera[J]. High Power Laser and Particle Beams, 2012, 24(8): 1836-1840 doi: 10.3788/HPLPB20122408.1836 [4] 王桥莉. 条纹相机同步扫描电路关键技术研究[D]. 西安: 中国科学院研究生院(西安光学精密机械研究所), 2014: 2-5Wang Qiaoli. Researches on the key technologies of synchronous scan circuit in streak camera[D]. Xi’an: Xi'an Institute of Optics & Precision Mechanics, Chinese Academy of Sciences, 2014: 2-5 [5] 朱成辉. 用于条纹相机的同步扫描电路设计[D]. 西安: 西安电子科技大学, 2014: 1-9Zhu Chenghui. Synchronous scanning circuit for the streak camera[D]. Xi’an: Xidian University, 2014: 1-9 [6] Tsai J I, Shieh J M, Liao T S, et al. High-voltage amplifier uses simplified circuit[EB/OL]. [2004-10-14]. https://u.dianyuan.com/bbs/u/54/1828071182447029.pdf. [7] 李炳乾, 王永昌, 张小秋, 等. 条纹相机扫描电路特性研究[J]. 西安交通大学学报, 1998, 32(4):108-110Li Bingqian, Wang Yongchang, Zhang Xiaoqiu, et al. Research on the characteristics of the sweep circuit of streak camera[J]. Journal of Xi’an Jiaotong University, 1998, 32(4): 108-110 [8] Upadhyay J, Joshi M J, Deshpande P P, et al. A high voltage programmable ramp generator[J]. Review of Scientific Instruments, 2008, 79: 054701. doi: 10.1063/1.2912823 [9] Benzel D M, Pocha M D. 1000-V, 300-ps pulse-generation circuit using silicon avalanche devices[J]. Review of Scientific Instruments, 1985, 56(7): 1456-1458. doi: 10.1063/1.1138504 [10] 邓克立, 刘慎业, 肖绍球. 基于雪崩晶体管的高速扫描电路的设计[J]. 微波学报, 2014, 30(s1):109-112Deng Keli, Liu Shenye, Xiao Shaoqiu. A design of a fast sweep circuit based on avalanche transistors[J]. Journal of Microwaves, 2014, 30(s1): 109-112 [11] 郭明安, 刘璐, 郭耀军, 等. 一种带输出监测的简单快速高压脉冲源[J]. 现代应用物理, 2022, 13:020204Guo Mingan, Liu Lu, Guo Yaojun, et al. A simple and fast high voltage pulse source with output monitoring[J]. Modern Applied Physics, 2022, 13: 020204 [12] Supertex Inc. High voltage ramp generator[R]. Sunnyvale: Supertex Inc. , 2012. [13] Melikyan V S, Dingchyan H H, Sahakyan A S, et al. Low-voltage compatible linear voltage ramp generator for zero-crossing-based integrators[C]//Proceedings of East-West Design & Test Symposium. 2013. [14] Sharma K L. A linear ramp voltage generator using transistors[J]. IEE-IERE Proceedings-India, 1970, 8(2): 60-64. doi: 10.1049/iipi.1970.0016 [15] 高文焕, 李冬梅. 电子线路基础[M]. 2版. 北京: 高等教育出版社, 2005: 81-82Gao Wenhuan, Li Dongmei. Semiconductor physics and devices basic principles[M]. 2nd ed. Beijing: Higher Education Press, 2005: 81-82 -
下载:
点击查看大图
图(6)
计量
- 文章访问数: 63
- HTML全文浏览量: 35
- PDF下载量: 3
- 被引次数: 0
