EXPERIMENTAL DEVICE
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RIP |
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The name RIP stands for Radio-frequency Inverter-power Plasma. It can produce high pressure radio frequency thermal plasma using SIT (Static Induction Transistor) inverter power supply by ICP (Inductively Coupled Plasma) technique.
The spark discharge technique is used to generate rf thermal plasmas. The experimental setup and the geometry of the plasma torch is shown in Fig.1. SIT inverter circuit is used for rf power supply. An automobile spark plug with high voltage transistor circuit is used to initiate the main rf discharge. RF induction coil is used for loop antenna, which is consisted with 7~18 turns coil made of 1/4 inches diameter of copper wire. Visible emission (shown in fig.2) of generated plasmas is observed by a CCD camera and the emission intensity is measured using photo diode. |
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Fig. 1: Experimental Setup for RIP |
Fig.2:
Visible emission of Ar-N thermal plasmas (10%N)
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