摘要
文中研究实用的浑浊度测量电路,采用普通的红外发射、接收管,通过对发射管施加脉冲信号源实现有用红外信号的调制,接收管通过选频电路实现有用红外信号的解调,有效地消除环境中噪声红外信号的干扰,得到稳定可靠的浑浊度电压信号输出。
A practical measure circuit of turbidity is researched in the article. Universal infrared transmitting tube and collection tube are adopted, the useful infrared signal is modulated with the impulse signal source applied to the transmitting tube and demodulated by frequence selection circuit. Accordingly, the disturbance caused by noise infrared signal is eliminated, and stable output of turbidity signal is acquired.
出处
《电子测量技术》
2005年第4期24-25,共2页
Electronic Measurement Technology
