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激光陀螺通常采用高压直流来提供泵浦。放电管的负阻特性会引起稳流回路的不稳定或震荡。为了优化放电环路,研究了放电管的阻抗特性。测量了不同放电电流下的管压降,通过多项式拟合得到了放电管的伏安特性曲线。由于微变阻抗直接决定了环路的稳定性,重点分析了微变阻抗随着电流的变化规律。研究可以为镇流电阻的选择和放电环路的优化设计提供参考,可以降低功耗并提高电路的可靠性。多样本测试表明文中的结论具有普遍适用性。
Laser gyros usually use high-voltage direct current to provide the pump. Negative resistance characteristics of the discharge tube will cause instability or turbulence of the steady flow circuit. In order to optimize the discharge loop, the discharge tube impedance characteristics. The tube pressure drop at different discharge currents was measured and the voltammetric characteristics of the discharge tube were obtained by polynomial fitting. Since the micro-resistance directly determines the stability of the loop, the changing law of the micro-resistance with current is analyzed emphatically. Research can provide a reference for the choice of ballast resistance and the optimal design of the discharge loop, which can reduce the power consumption and improve the reliability of the circuit. Multiple sample tests show that the conclusions in this paper have universal applicability.