峰值检波

峰值检波采用自适应检波电路，限幅放大器采用两级差分放大器构成。

Peak detector circuit is a fast adaptive detector circuit , and the limiting amplifier involves two stage differential amplifiers .

通过涡流传感器探测到的感应信号经过放大、峰值检波、模数转换后经由单片机进行信号的处理与判断，从而判定是否探测到金属，并报警。

Through the detection of the eddy current sensor signal after peak detector , amplifier , analog-to-digital conversion by SCM for processing and the judgment signal , thereby to determine the detection to the metal , and alarm .

带中断输出的实用峰值检波电路设计

The Design on Practical Peak Value Detector with Interrupt Output

磁芯采用高频脉冲电流励磁，信号处理电路由峰值检波、低通滤波及差动电路构成。

The toroidal core was excited by sharp pulse current . The sensor circuit is composed of peak value detector , Butterworth low-pass filter and differential amplifier .

探测电路包括振荡电路、信号放大电路、谐振电路、峰值检波电路、电压比较电路和声光报警电路等几部分。

It contains oscillating circuit , signal-amplified circuit , resonant circuit , peak value detection circuit , voltage comparing circuit and sound-light alarm circuit and so on several parts .

探测器探测光信号后要进行一些初始的信号处理，这部分主要是对探测到的微弱信号进行放大、滤波和对信号进行采样获得数字信号，文章进行了放大、滤波、峰值检波电路等设计。

The detected light signal must be processed initially , which involve the weak signal amplification , filtering and the digital signal converting , so amplifier , filter , peak detection circuit etc are designed in this thesis .

利用电磁感应的原理设计了酸碱式电磁浓度传感器，并设计了扫频谐振检测电路和峰值检波电路，有效提高了系统的抗干扰能力，另外还分析了温度对测量结果产生的影响。

An acid and alkaline electromagnetic concentration sensor has been designed in this paper based on the theory of Electromagnetic Induction . The resonance sweep-frequency detector circuit and peak value detection circuit are also designed to raise anti-jamming capacity of system . The temperature influence on result is also analysed .

相对于体外的AM调制方式，解调器采用二极管峰值包络检波进行解调。

Compared with in vitro AM modulation modes , the demodulator adopts the diode peak envelope detector for demodulation .