摘要火炮身管直线度直接关系到火炮在实战中的射击精度、发射可靠性、使用寿命及炮弹的飞行姿态。因而，必须对身管直线度进行高精度测量。该项目是以激光器、PSD等为测试硬件基于JV31222数据采集模块构建的身管直线度测试系统。本文采用LabVIEW图形化的编程语言，为该系统编写了相应的测试软件，包含硬件初始化、硬件参数设置、测试主界面、数据处理与分析等一系列内容。解决了数据采集、采集噪声的分析、信号滤波、直线度评定方法的实测比较、采集数据的管理等问题。最终通过系统级联，完成测试任务，得到身管直线度，并对结果进行了误差分析。61175

毕业论文关键词  PXI采集模块  直线度  LabVIEW  软件设计

毕业设计说明书（论文）外文摘要

Title      A software design based on Virtual Instrument  for barrel straightness test system                                                  

Abstract Gun Barrel straightness directly related to the artillery firing accuracy in actual combat, firing reliability, service life and shells in flight. Thus, the barrel must be in high-precision measurement of straightness. The project is built upon lasers, PSD, etc. for testing hardware-based data acquisition module JV31222 in the barrel straightness test system. In this paper, a software seystem is designed for the test system using LabVIEW graphical programming language, including hardware initialization, hard_

ware parameter settings, test interface, data processing and analysis and so on. Some problems are solved, like data collection, noise analysis, signal filtering, comparation of straightness evaluation method, data management. Eventually with the hardware to complete the test task, the barrel straightness is obtained, and the errors are analysed.

Keywords  PXI acquisition module  straightness  LabVIEW  software 

1 绪论 1

1.1 课题的研究背景及意义 1

1.2 身管直线度测量的评定 2

1.3 国内外测量方法 3

1.4 虚拟仪器概述 3

2 虚拟仪器系统的框架 4

2.1 硬件支持 4

2.2 软件构成 6

3 测试软件结构及模块 6

3.1 数据采集卡的LabVIEW驱动 8

3.2 初始化程序 9

3.3 模块参数配置 10

3.4 采样 12

3.5 数据显示 14

3.6 数据的保存及读取 14

3.7 数据处理 16

3.8 打印 17