This paper presents a method with mixed spectra for analyzing rotationalaccuracy of spindles, making use of the modified periodogram test combined with dynamic data system modeling.
本文采用动态数据系统建模分析法与改进的周期图检验法相结合，对主轴回转精度进行混合谱分析。
2
This system can complete the engine rotational speed and torque high accuracy control and the test, also engine temperature, pressure, oil consumption parameters survey.
本系统能够完成发动机的转速、转矩的高精度控制与测试，以及发动机温度、压力、油耗等指标参数的测量。
3
Requirements for the device of testing rotational speed include: high-accuracy, stabilization, credibility, and shorter testing time.