Abstract
It has been established in experiments on the interaction of a shock wave with a glow discharge that the motion of the shock wave is accompanied by an increase in the potential of discharge plasma. A relatively small change in the potential is observed ahead of the shock wave front and a significant one behind this front. The varying potential in the glow discharge plasma distorts the current of the dual probe. A method of its correction is proposed, which consists in the joint processing of two signals obtained in separate experiments with different surface areas of the negative probe electrode. The method makes it possible to determine the ionic current and the change in the potential of space. The ionic current determined by the concentration of charged particles remains unchanged ahead of the arrival of the shock wave at the measurement point. A gradual increase in the ionic current is observed behind the wave front unlike the abrupt change in gas-dynamic parameters on the wave front.
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