In order to more accurately evaluate or calibrate the electronic torsional vibration test analyzer and analysis method, a torsional vibration signal generator is developed in the present study. The developed device generates a tooth pulse interval sequence based on the inverse solution of the shaft torsional equation. Moreover, a single-frequency signal, inter-harmonic signal, time-varying harmonic signal, and noise-containing time-varying inter-harmonic signal are simulated. The pulse width modulation module of TMS320F28335 is used to generate the instantaneous speed gear pulse signal, while the external expanded digital to analog conversion module is utilized to generate the corresponding speed analog signal. The hardware structure of the proposed generator has remarkable advantages, including simple structure, low-cost operation and easy to use interface. Moreover, it can be applied to evaluate or calibrate the torsional vibration test analyzer and analytical methods.

为了更准确地评估或校准电子扭转振动测试分析仪和分析方法，本研究开发了一种扭转振动信号发生器。所开发的装置基于轴扭转方程的逆解生成齿脉冲间隔序列。此外，还模拟了单频信号，间谐波信号，时变谐波信号和包含噪声的时变间谐波信号。TMS320F28335的脉冲宽度调制模块用于生成瞬时速度齿轮脉冲信号，而外部扩展的数模转换模块用于生成相应的速度模拟信号。拟议的发电机的硬件结构具有明显的优势，包括结构简单，低成本的操作和易于使用的界面。而且，它可以用于评估或校准扭转振动测试分析仪和分析方法。