基于单片机的实用数字信号源与频率计设计

Design of the practical digital signal generator and frequency meter based on single-chip micro-computer

在科研和装备的检测工作中经常需要产生一些频率固定或可变的信号,本设计由单片机、编码器、按键、显示器产生所需频率的信号,同时也可以测量输入信号频率。实际应用表明,本数字信号源电路简单、操作使用简便、性能稳定可靠,能够很好满足科研和实验的要求。

In the work of scientific research and test of equipment, some signals with fixed or variable frequency are usually needed. To reduce the cost, single chip and some simple peripherial components are used in the design to produce the signals with the needed frequency, at the same time to complete the measurement of frequency. The application results show that, with the advantages of simple principle and operation and stable performance, the digital signal generator can better satisfy the need of scientific research experiment.