The MCU is used for the center controller, achieving high accuracy frequency measurement by methods of multi-cycle synchronism and quantization time-delay. 提出了一种高精度频率测量系统的设计方法,应用单片机技术将多周期同步法和量化时延法相结合,实现了频率的高精度快速测量。
The broadcasting of the adopting regular frequency FM multi-function and synchronism is a good scheme which realizes service ally net of the whole country 采用固定频率的FM调频多工同步广播是实现全国服务性联网的好方案
The Use of Frequency Converter's PID Functionality to Achieve Synchronism Control for Two Motors 利用变频器的PID功能实现两台电机的同步控制
Application on frequency measurement by multi-period synchronism with PCL-836 multifunction counter/ timer card PCL-836多功能计数器/定时器卡在频率测量中的应用
In the hardware design part, this thesis adopts many key techniques, including sigma-delta A/ D converting technology, improved direct digital frequency synthesis ( DDFS) technology, and multi-cycle synchronism measurement technology. 在硬件电路的设计中,采用了诸多关键技术,其中包括:∑-Δ模数转换技术、改进的直接数字频率合成技术和多周期同步测量技术。