The experiment consists of photoelectric sensor, bio-signals amplifier and oscillograph, their working principle and experimental method are introduced.
指端脉搏波实验由光电传感器、生物信号放大器和示波器 3部分组成 ，叙述了各部分的工作原理和实验方法 。
Secondly, the mathematical model of the laser simulation system is built upon the atmosphere attenuation, the amplifier extent, receiving-sensibility of photoelectric diode and other preferences.
通过对大气衰减系数、放大器放大能力、光电二极管接收灵敏度等一些主要参数进行分析，建立了激光模拟系统的数学模型。
Secondly, the mathematical model of the laser simulation system is built upon the atmosphere attenuation, the amplifier extent, receiving-sensibility of photoelectric diode and other preferences.
通过对大气衰减系数、放大器放大能力、光电二极管接收灵敏度等一些主要参数进行分析，建立了激光模拟系统的数学模型。
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