长沙航空职业技术学院(2025 届) 毕业设计(论文) 晶体管测量仪学 院、系: 航空电子电气工程学院 专 业: 应用电子技术 学 生 姓 名: 班 级: 电子 1102 学号 03 指导老师姓名: 职称 2025 年 5 月 晶体管测量仪设计摘 要晶体管测量仪广泛用于科研,工业和实验教学中,论文选题具有实际意义。通过学习和查阅相关文件为基础,本文介绍一个简易实现晶体管测量仪基本原理和实现方案。在系统硬件设计中,以 MCS-51 单片机最小系统为核心,采纳555 振荡器实现了方波和三角波的输出信号,利用计数器 74161 和DAC0832 产生梯形波,通过比较器 LM311 构成识别晶体管类型的推断。系统的软件设计是在 Keil51 的平台上,使用 C 语言与汇编语言混合编程编写了系统应用软件;包括主程序模块、显示模块、数据采集模块和数据处理模块。关键词:晶体管测量仪; 伏安特性; 单片机 transistor characteristic testerABSTRACT : Transistor characteristic tester used in research, teaching and industrial experiments, the practical significance of topics. In this paper, learning and access to relevant documents, based on the realization of a simple transistor introduced voltammetric curve tracers basic theory and programs.In the system hardware design to MCS-51 microcomputer as the core, extending the man-machine dialogue interfaces, Achieved by 555 square wave oscillator and triangle wave output signal, generated using counters 74161 and DAC0832 trapezoidal wave, Constitute recognition by the comparator LM311 transistor type judgments.The software design is the platform Keil51 using C language and assembly language programming prepared hybrid system application software; Including the main program module, display module, data acquisition module and data processing moduleKEY WORDS: Transistor Tracer ,Single slice of machine目录 晶体管测量仪设计..........................................I摘 要.................................................Itransistor characteristic tester.............