摘要
本文介绍一种以AT89C5 2单片机为控制核心 ,采用直接数字波形合成技术产生方波、三角波、锯齿波、正弦波和其他周期信号波形的方法。其频率范围在 0 .0 0 1Hz～ 999.9Hz之间 ,幅度在 0～ 2 0V无级连续可调 ,波形失真度 :<0 .5 %。具有稳定性好、性能优越、功能强大、操作方便等特点 ,使用价值高。
This article introduces a kind of designing method that adopts AT89C52 to control the device as the core and uses digital wave synthetic technology to produce square wave, triangular wave, saw tooth wave , sinusoidal wave and other period function signal wave. The frequency range is in 0.001Hz- 999.9Hz, the amplitude is adjustable in succession as no grade in 0 - 20V, wave distortion： 〈 0.5%. It is good in stability, excellent in the performance and convenient in operation and has high value in application.
出处
《南昌航空工业学院学报》
CAS
2004年第3期72-74,共3页
Journal of Nanchang Institute of Aeronautical Technology（Natural Science Edition）
关键词
单片机控制
波形合成
信号发生
函数算法
Single chip microcomputer control
Wave synthesizing
Signal generating
Function arithmetic
