testing

滚动轴承的故障诊断程序，可实现在线诊断和自动识别(Rolling bearing fault diagnosis)

Webcam vi as an example

虚拟仪器是现代测量技术和计算机技术相结合的产物，标志着自动测试与电子测试仪器领域技术发展的一个崭新方向． 随着信息技术和计算机技术的高速发展，数字信号处理作为一门新兴的学科，其重要性日益在各个领域的应用中体现出来。本文介绍了利用LabVIEW 图形编程语言进行虚拟仪器开发的方法，设计了一种基于PC机声卡的虚拟示波器，说明了虚拟仪器在现代测试领域中的重要地位以及其广阔的发展前景． 从某种意义上说，“软件就是仪器”。(Virtual instrument is the produce that merges the computer technology and measurement technique．It stands for a brand new development directory in the field of auto-measurement and electronic measurement。 With the rapid development of information technology and the computer technology, the digital signal processing takes an emerging discipline, its importance displays day by day in each domain application. This article introduces how to develop virtual instruments using graph programming language-LabVIEW ,designs a virtual signal displayer based on PC and explains the important part and wide development prospects of virtual instrument in modern measurement technique field． In a sense, “The software is an instrument”.)

本系统可做自动控制原理中的时域分析仿真实验，系统特性如下： 1：可选择仿真系统为一阶、二阶、任意阶 2：可选择信号源为正弦波、三角波、锯齿波、方波（可模拟阶跃信号），并可调节信号源频率、幅值、相位、偏移、方波占空比 3：可选择信号采样率及采样数 4：自动计算传递函数 5：自动计算时域响应参数（增益系数、上升时间、峰值、峰值时间、稳定时间、超调量） 6：波形图同时显示原始信号和响应信号 注：使用本系统需安装labview控制设计与仿真库(The system can do automatic control theory in the time-domain analysis simulation, the system behaves as follows: 1: simulation system can be selected for the first, second, any order 2: select the signal source is a sine wave, triangle wave, sawtooth, square wave (analog step signal), and can adjust the signal source frequency, amplitude, phase, offset, duty cycle square wave 3: the the optional signal sampling rate and the number of samples 4: automatic calculation of the transfer function 5: Automatic calculation domain response parameters (gain coefficient, rise time, peak, peak time, settling time, overshoot) 6: waveform diagram shows both the original signal and the response signal Note: Use the system to be installed LabVIEW Control Design and Simulation library)

可以通过labview进行USB通讯，凄凄切切群群群群群群群群群(USB communication through LabVIEW)

（2） 发生一个值为0.0~10.0之间的随机数，并除以一个在前面板中输入的数。如果输入的数为0，则点亮LED，提示除数为0时，除法无效。((2) a value of 0.0 to 5.0 occurred between random numbers and dividing by a number entered in the front panel. If the input is 0, then lit LED, prompted the divisor is 0, the division is invalid.)

用LabVIEW模拟停车场系统,实现分段计时收费(LabVIEW simulation of parking system, to achieve sub hourly fees)

右键菜单功能，LabWindows实现的，使用弹出菜单(Right-click menu, LabWindows achieve)

labview internet connect tool(PC internet connect tool)

基于myrio的labview编程，包含伺服电机、直流电机驱动、红外对管摄像头等等。(LabVIEW programming based on myrio)