无线数控脉冲信号放大器【毕业论文】.doc

- PAGE I - 本科毕业设计 （20 届） 无线数控脉冲信号放大器 所在学院 专业班级 通信工程 学生姓名 学号 指导教师 职称 完成日期 年 月 PAGE I 摘　要 【摘要】本文介绍了一种用于血液分析仪中小信号脉冲放大的无线数控放大器。该无线数控放大器由两部分组成：无线控制端和数控放大节点。无线控制端由单片机和无线收发模块组成，单片机控制无线收发模块发送数据。数控放大节点由单片机、无线收发模块和放大电路组成，以单片机为核心，控制无线收发模块接收数据并利用接收的数据控制放大电路的放大倍数。经实验数据验证，本数控放大器的通频带为120Hz~500KHz，放大倍数在800~3000数控可调。另外，该数控放大器还具有功耗低，抗干扰性强等特点。 【关键词】无线；数控；单片机。 Abstract 【ABSTRACT】This paper presents a wireless numerical control pulse signal amplifier, which is used to amplify the pulse signal in bloodanalyser. The amplifier is compose of two parts: wireless console and numerical control enlarged node. The wireless console is consist of microcontroller and wireless transceiver module. The microcontroller controls the wireless transceiver to send data. The numerical control enlarged node is consist of microcontroller, wireless transceiver module, and amplifying circuit. The microcontroller, which as the core of the numerical control enlarged node, controls the wireless transceiver module to receive the data and uses the data to control the gain of the amplifying circuit. Experiments indicate that the passband of the amplifier is from 120Hz to 500KHz. The gain of the amplifier can be adjusted from 800 to 3000. In addition, the amplifier has the characteristics of low power consumption, strong anti-jamming capability. 【KEYWORDS】wireless; numerical control; microcontroller. 目　录TOC \o 1-3 \h \u HYPERLINK \l _Toc19133 1 前言 PAGEREF _Toc19133 1 HYPERLINK \l _Toc5907 1.1 课题的背景与意义 PAGEREF _Toc5907 1 HYPERLINK \l _Toc11059 1.2 课题内容 PAGEREF _Toc11059 2 HYPERLINK \l _Toc4254 2 系统总体方案设计 PAGEREF _Toc4254 3 HYPERLINK \l _Toc4969 2.1 系统需求分析 PAGEREF _Toc4969 3 HYPERLINK \l _Toc26767 2.2 方案比较 PAGEREF _Toc26767 3 HYPERLINK \l _Toc11387 2.3 总体方案设计 PAGEREF _Toc11387 5 HYPERLINK \l _Toc17103 3 硬件设计 PAGEREF _Toc17103 6 HYPERLINK \l _Toc5371 3.1 无线控制端 PAGEREF _Toc5371 6