We delineate an experimental observation of the effect of the magnetic field along with mesh grid biasing in the presence of a cylindrical plasma bubble in a filamentary discharge magnetised plasma system. The cylindrical mesh grid of 80% optical transparency has been negatively biased and introduced in the plasma for creating a plasma bubble. Plasma floating potential fluctuations have been taken outside (LP1) and inside (LP2) of the plasma bubble. It has been noticed that as the external magnetic field is increased the oscillation pattern shows intermittent route to chaos as the system evolved from regular type of relaxation oscillations (of larger amplitude) to an irregular type of oscillations (of smaller amplitude) We have used recurrence quantification analysis (RQA) to the observed intermittency to chaos in the plasma. The main measures of RQA are laminarity (LAM) and determinism (DET). The laminarity measure can be associated with the average time between the chaotic burst in the intermittency. It has also been observed that the DET depends on the control parameter and decreases exponentially, features like a dip in skewness and a hump in the kurtosis with the variation of control parameter have been noticed, which are the strong evidence of intermittent behaviour of the system. Further, a numerical model has been developed to the observed experimental analysis of the intermittent route to chaos.

中文翻译：

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圆柱形等离子气泡引起的磁化丝状放电等离子体中间歇性路径混乱的实验观察

我们描绘了在丝状放电磁化等离子体系统中，在存在圆柱形等离子体气泡的情况下，磁场与网状网格偏置共同作用的实验观察结果。80％的光学透明度的圆柱形网格已被负偏压并引入等离子体中以产生等离子体气泡。等离子体漂浮电位波动已在等离子气泡的外部（LP1）和内部（LP2）吸收。已经注意到，随着外部磁场的增加，随着系统从规则类型的弛豫振荡（幅度较大）到不规则类型的振动（幅度较小）演化，振荡模式显示出间歇性的混沌路径。定量分析（RQA），以观察到的血浆间断性。RQA的主要指标是层流（LAM）和确定性（DET）。层流度可以与间歇性混沌突发之间的平均时间相关联。还已经观察到DET取决于控制参数并呈指数下降，已经注意到诸如偏度下降和峰度随控制参数变化而变化的特征，这是系统间歇性行为的有力证据。 。此外，已经建立了数值模型，以观察到对间歇性间歇路线的实验分析。人们注意到，随着控制参数的变化，诸如偏度下降和峰度驼峰等特征是系统间歇性行为的有力证据。此外，已经建立了一个数值模型，用于观察到的间歇性混沌路径的实验分析。人们注意到，随着控制参数的变化，诸如偏度下降和峰度驼峰等特征是系统间歇性行为的有力证据。此外，已经建立了数值模型，以观察到对间歇性间歇路线的实验分析。