CAJ | 학술논문

介绍了锁相环集成电路CD4046的工作原理,提出了一种硬件同步的锁相倍频采样测量方法,用锁相环产生的频率来同步DSP2812的A/D采样的频率和时刻,锁相环每发出一个脉冲都启动采样电路进行一次数据采集。实验结果表明系统可行性和有效性。
개소료쇄상배집성전로CD4046적공작원리,제출료일충경건동보적쇄상배빈채양측량방법,용쇄상배산생적빈솔래동보DSP2812적A/D채양적빈솔화시각,쇄상배매발출일개맥충도계동채양전로진행일차수거채집。실험결과표명계통가행성화유효성。
The working principle of phase locked loop integrated circuit CD4046 was introduced, putting forward a kind of hardware synchronization phase-locked frequency multiplication sampling measurement method, which could use the frequency generating by the phase locked loop to synchronize the DSP2812A/D sampling frequency and time. The phase locked loops would start sampling circuit in a data collection while each emitting a pulse. The experimental results show that the system is feasible and effective.