TY - JOUR
T1 - Performance of a thermal nonequilibrium plasma jet control system
AU - Nishiyama, Hideya
AU - Sato, Takehiko
AU - Kato, Daigo
N1 - Funding Information:
The present study was partly supported by a grant-in-aid for Scientific Research (B) from the Japan Society for Promotion of Science. The authors would like to thank Professor Toshiyuki Hayase for his valuable comments and technician Mr. Kazunari Katagiri for setting up the experimental apparatus in the Institute of Fluid Science, Tohoku University.
PY - 2002
Y1 - 2002
N2 - The correlations between characteristics of a plasma jet such as gas temperature, radiation intensity, electron temperature and electron density and operating conditions such as discharge current, applied magnetic flux density, gas flow rate and rate of gas mixing with secondary gas are experimentally clarified in details. There is a linear interrelation between radiation intensity and two operating parameters of discharge current and magnetic flux density. It is shown that the radiation intensity is selected as an adjustable controlled variable, and also the discharge current and magnetic flux density are selected as manipulated variables. Then, a proportional plus integral plus derivative (PID) feedback control system is constructed utilizing the obtained physical correlations, and further the control system performance is verified. The radiation intensity can be controlled over a wide range by the discharge current in this system, and it can be also controlled with rapid and precise response when applying a magnetic field.
AB - The correlations between characteristics of a plasma jet such as gas temperature, radiation intensity, electron temperature and electron density and operating conditions such as discharge current, applied magnetic flux density, gas flow rate and rate of gas mixing with secondary gas are experimentally clarified in details. There is a linear interrelation between radiation intensity and two operating parameters of discharge current and magnetic flux density. It is shown that the radiation intensity is selected as an adjustable controlled variable, and also the discharge current and magnetic flux density are selected as manipulated variables. Then, a proportional plus integral plus derivative (PID) feedback control system is constructed utilizing the obtained physical correlations, and further the control system performance is verified. The radiation intensity can be controlled over a wide range by the discharge current in this system, and it can be also controlled with rapid and precise response when applying a magnetic field.
KW - Control systems
KW - Fluctuation
KW - Operation
KW - Plasma jet
KW - Plasma parameters
KW - Thermofluid characteristics
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U2 - 10.1080/10519990214692
DO - 10.1080/10519990214692
M3 - Article
AN - SCOPUS:28244462458
SN - 1051-9998
VL - 10
SP - 157
EP - 168
JO - Plasma Devices and Operations
JF - Plasma Devices and Operations
IS - 3
ER -