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本文从音臂循迹的几何关系出发,推导了循迹误差与非线性失真的关系。提出了循迹跟踪的概念,指明音臂校正角在于达到两点跟踪。并推导了音臂的结构尺寸和跟踪点的内在关系以及跟踪点与循迹误差的一般关系,即循迹误差函数θ(r_1、r_2)。本文还讨论了音臂的设计,指出不同的误差准则,将有不同的设计方案,作者认为循迹误差不仅是引起非线性失真,还将使音臂的随纹能力下降,因而提出了误差均布准则,并从一般关系式推导出误差均布准则音臂设计方法。文末给出了一组唱盘轴与音臂轴距离和唱臂结构参数及最大循迹误差间的关系。
In this paper, the relationship between the tracking error and the nonlinear distortion is derived from the geometric relationship of the acoustic arm tracking. Proposed the concept of tracking and tracking, indicating that the sound arm correction angle is to achieve two-point tracking. And the intrinsic relationship between the structure size of the sound arm and the tracking point and the general relationship between the tracking point and the tracking error are derived, that is, the tracking error function θ (r_1, r_2). This paper also discusses the design of the sound arm, pointed out different error criteria, there will be different designs, the author believes that tracking error is not only caused by non-linear distortion, but also with the ability to reduce the sound arm with the grain, so the proposed error Cloth criterion, and deduces the method of design of acoustic arm with uniform error according to the general relation. At the end of this paper, the relationship between the distance between a set of disc axis and the arm axis and the structure parameters of the arm and the maximum tracking error is given.