TY  - JOUR
T1  - Non-Destructive Method of Electron Concentration
De-Terminationin Discharge Tubes
AU - Sveshnikov, V.K. AU - Kurenshikov, A.V. 
JO  - Journal of Engineering and Applied Sciences
VL  - 12
IS  - 13
SP  - 3334
EP  - 3337
PY  - 2017
DA  - 2001/08/19
SN  - 1816-949x
DO  - jeasci.2017.3334.3337
UR  - https://makhillpublications.co/view-article.php?doi=jeasci.2017.3334.3337
KW  - Discharge
KW  -discharge tube
KW  -plasma column
KW  -external electrodes
KW  -measurement
KW  -electron concentration
AB  - The method of electron concentration determination in discharge tubes is considered. It is based on
the measuring of an auxiliary high-frequency discharge conductivity flowing between two external electrodes,
located diametrically opposite to a discharge tube surface. The measurements are carried out at a
frequency corresponding to the maximum active conductivity of a plasma column. The current of an auxiliary
high-frequency discharge is measured with a thermal converter. The direct current is fed from a thermocouple
to the input of the direct current amplifier which increases the accuracy of measurements in contrast to the
known methods. The numerical value of the thermocouple current is measured by a microammeter connected
to the output of a direct current amplifier. The error of the electron concentration determination method does
not exceed 8%. The scheme and the technique of electron concentration determination in discharge tubes are
provided.
ER  -