Design of Fast Scanning Langmuir Probe Diagnostic System Suitable for Transient Arc Plasma Diagnosis in Arc Ion Plating

2012 ◽  
Vol 152-154 ◽  
pp. 1711-1716
Author(s):  
Wen Chang Lang ◽  
Xiang Hong Wang ◽  
Xiu Rong Nan
Keyword(s):  
Integrated Circuit ◽  
Langmuir Probe ◽  
Diagnostic System ◽  
Sine Wave ◽  
Arc Plasma ◽  
Power Module ◽  
Plasma Diagnosis ◽  
High Power Amplifier ◽  
Depth Analysis ◽  
Transient Plasma

In order to detect the arc plasma, an in-depth analysis on the relationship between the technology and film properties is conducted in this article. In addition, a fast scanning Langmuir probe diagnostic system suitable for transient plasma diagnosis is also designed, coupled with the design scheme and schematic diagram. Regard the integrated circuit of MAX038 as the core，and utilize FET to input high-fidelity operational amplifier OPA604 as well as high power amplifier PA93 to complete the intelligent saw-tooth wave sweep frequency power with the output amplitude of ± 100V, output frequency ranging from 10Hz to 10MHz as well as the adjustable frequency and duty cycle. Then test the output waveform and the results show that the power module can precisely generate triangle wave, saw-tooth wave, rectangular wave (including square wave) and sine wave signal.

scholarly journals A compact and portable PC-based Gundestrup–Langmuir probe diagnostic system

2005 ◽  
Vol 76 (1) ◽  
pp. 013505 ◽  
Author(s):  
P. Sicard ◽  
C. Boucher ◽  
A. Litnovsky ◽  
J.-P. St-Germain
Keyword(s):  
Langmuir Probe ◽  
Diagnostic System

Sweep Langmuir Probe and Triple Probe Diagnostics for Transient Plasma Produced by Hypervelocity Impact

2012 ◽  
Vol 14 (8) ◽  
pp. 747-753 ◽  
Author(s):  
Enling Tang ◽  
Shenghai Xiang ◽  
Minghai Yang ◽  
Lexin Li
Keyword(s):  
Langmuir Probe ◽  
Hypervelocity Impact ◽  
Probe Diagnostics ◽  
Transient Plasma

Radial and Angular Resolved Langmuir Probe Diagnosis of a Pulsed Vacuum Arc Plasma

2011 ◽  
Vol 13 (6) ◽  
pp. 689-692
Author(s):  
Lei Chen ◽  
Mingwang Ma ◽  
Ming Li ◽  
Dazhi Jin ◽  
Xiaohua Tan ◽  
...  
Keyword(s):  
Langmuir Probe ◽  
Vacuum Arc ◽  
Arc Plasma

A pulsed Langmuir probe for plasma diagnosis

Pramana ◽  
1975 ◽  
Vol 5 (6) ◽  
pp. 349-353
Author(s):  
A K Chatterjee ◽  
S K Guharay ◽  
S N Sen Gupta
Keyword(s):  
Langmuir Probe ◽  
Plasma Diagnosis

scholarly journals Wireless Power Transfer Solutions and Their Effectiveness [Georgia Institute of Technology]

2019 ◽  
Author(s):  
Johnathan Radcliff ◽  
Joyelle Harris
Keyword(s):  
Integrated Circuit ◽  
Frequency Synthesizer ◽  
Wireless Power Transfer ◽  
Sine Wave ◽  
Future Research ◽  
Design Element ◽  
Power Transfer ◽  
Wireless Power ◽  
Received Power ◽  
Institute Of Technology

My research focuses on the problems related to the creation of a wireless power transfer system designed for energy transmission at a distance of at least one meter. The project was created to provide data for the advancement of wireless power, specifically via radio frequency transmission. Previous research efforts that attempted to develop this technology have run into unforeseen obstacles that have hindered its consumer and commercial adoption. This research will yield more information into those barriers and what can be done to assist wireless power in its future development as an applied technology. To begin producing data, a wireless power system first must be created. The central design element of the transmitter was a Texas Instruments PLL and integrated VCO wideband frequency synthesizer programmed to output a 3.6GHz sine wave. That signal was then passed into a GaN amplifier integrated circuit from Analog Devices and finally transmitted via a wideband Molex antenna. The receiver circuit was much simpler, simply consisting of a second Molex antenna and a bridge rectifier circuit to convert the AC signal to DC. A multipurpose ATmega328 programs the frequency synthesizer on the transmitter and reads the voltage and current from the receiver with its integrated ADC. The research is currently still in progress, but the data that has been accumulated shows that transmission is possible but with lower power yields than initially expected. The maximum range of received power was one meter, but because the transmitted voltage and current did not meet the calculated values, the project must have reached one or more of the unknown obstacles in wireless power design. To isolate and learn more about them, the project will be revised to gather more data. It will change into different models of power transfer and be tested for their effectiveness for the benefit of future research in this topic.

First application of a digital mirror Langmuir probe for real-time plasma diagnosis

2021 ◽  
Vol 92 (10) ◽  
pp. 103502
Author(s):  
W. McCarthy ◽  
T. Golfinopoulos ◽  
K. B. Woller ◽  
C. Vincent ◽  
A. Kuang ◽  
...  
Keyword(s):  
Real Time ◽  
Langmuir Probe ◽  
Plasma Diagnosis

Upgrade Design of Lower Divertor Langmuir Probe Diagnostic System in the EAST Tokamak

2018 ◽  
Vol 46 (5) ◽  
pp. 1331-1337 ◽  
Author(s):  
J. C. Xu ◽  
L. Wang ◽  
G. S. Xu ◽  
W. Feng ◽  
H. Liu ◽  
...  
Keyword(s):  
Langmuir Probe ◽  
Diagnostic System

Synthesis Approach for Compact VDTA Quadrature Sine-Wave Oscillators with Orthogonal Control

2019 ◽  
Vol 28 (12) ◽  
pp. 1950205
Author(s):  
Yong-An Li
Keyword(s):  
Integrated Circuit ◽  
Experimental Analysis ◽  
Current Mode ◽  
Sine Wave ◽  
Oscillation Criterion ◽  
Circuit Realization ◽  
Admittance Matrix ◽  
Transconductance Amplifier ◽  
Paper And Pencil ◽  
Synthesis Approach

From the nodal admittance matrix (NAM) expansion approach and 16 pathological patterns of the voltage differencing transconductance amplifier (VDTA), two different categories, namely sort A and sort B, of the quadrature sine-wave oscillators-employed VDTAs and grounded capacitors in the current mode are synthesized. In all, four quadrature sine-wave oscillators with two sets of quadrature current outputs are attained. Because canonic number is used for component quantity, the oscillators are appropriate to integrated circuit realization and also provide electronic, linear, and orthogonal adjustments between the oscillation criterion and frequency by means of tuning bias currents of the VDTAs. The paper-and-pencil and simulation analyses as well as experimental analysis have been carried out to check the utilized synthesis approach.

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