小信号放大 meaning in English
small signal amplification
Examples
- Sensitive element is one of the important to measure the concentration of mathane , and it " s export is a little voltage signal , little signal amplify circuit is to transform the analogue signal to digital signal , display circuit is to display the concentration of mathane , monitoring circuit is to monitor the overstep limit of mathane concentration . the feature is new design , accurately measure parameter , convenient to operate and so on
其中cpu是监控仪的核心，完成数据采集、处理、输出、显示等功能；敏感元件是准确检测甲烷气体含量的主要元件之一，其输出是与甲烷浓度相对应的电压信号；小信号放大电路则是用来放大敏感元件输出的电压信号； a d转换电路把放大了的电压信号由模拟信号变为数字信号送入cpu ；显示电路则显示实时甲烷浓度；报警电路对超限甲烷浓度进行报警。 - The instrument include cpu , sensitive element , canmengou monitoring circuit , little signal amplify circuit , a / d transform circuit , communication circuit , display circuit , monitoring circuit , cpu is the core in the instrument , complete data gather , process , export , display and so on
仪器能够根据甲烷浓度报警限( 1 . 00 )进行声、光报警，并启动排风设备，同时具有通信功能。仪器由cpu 、敏感元件、看门狗监控电路、小信号放大电路、 a d转换电路、通信电路、显示电路、报警电路等组成。