【摘要】 研究了管道倒相式扬声器系统的阻抗曲线与调谐比及输入电压的关系,分析了阻抗曲线变化的原因,给出了调谐比对阻抗曲线峰值的影响,给出了非线性Bl对阻抗曲线峰值的影响。通过研究大信号情况下的阻抗曲线,给出了一种测量非线性Bl值的方法。理论分析与实验验证吻合很好。更多还原

【Abstract】 The relationship between impedance of vented- box loudspeaker and both system tuning ratio and input voltage are discussed and the causes of the variation of the impedances are analyzed. The influence of both system tuning ratio and nonlinear Bl to the impedance are given. Using the analyses of the impedance curves under larger signals,one method of approximately determining the Bl is discussed.更多还原