摘要
本设计基于双积分原理,电路由积分器、检零比较器、运算放大器等构成,以STC12C2052AD单片机做为辅助控制部件,将输入的模拟量利用单片机转换成与其成正比的时间间隔,在此时间内用计数器对恒定频率的时钟脉冲进行计数,计数结束时利用检零比较器将模拟量转换成数字量,并由单片机进行人工智能检测与控制。
The design is based on the principle of double integral circuit by the integrator,zero comparators,operational amplifiers. With STC12C2052AD SCM as auxiliary components,the input analog converses with the use of SCM. It is proportional to the time interval. At this time in the counter on a constant frequency clock pulse count,count zero at the end of analog comparator. Simulation quantity will be converted to digital by the MCU artificial intelligence and control to detect.
出处
《技术与教育》
2008年第1期48-50,共3页
Technique & Education
关键词
双积分电路
检零比较器
智能检测与控制
double integral
circuit zero comparator
intelligent measurement and control
