数据采集编程指南 中篇

labview基于声卡的语音实时采集和处理(labview sound card based real-time acquisition and processing of speech)

labview的文字滚屏显示，效果类似LED屏幕的滚屏显示。(Scrolling Display)

一个包络检波的Labview程序，可插入到大型得项目文件中去，便于信号的分析(An envelope detection Labview program can be inserted into a large project file to facilitate the analysis of the signal)

labview的一个usb和visa通讯的很好的一个参考例子(LabVIEW a USB and visa communication is a good example of reference)

说明：  基于LabvIEw的通用自动测试系统(ATs)舍计算机，可鳊程激励、响应数据采集及uuT模块，采用MxI总线控制方式。专用信号发生器为uuT提供模拟激励信号，矩阵开关和适配器完成不同信号间切换。主控计算机执行测试程序，信号发生器发送激励信号，数据采集卡采集数据，采集数据经调理后，并与标准数据|匕较是否满足相应测试结果。(The general automatic test system (ATs) based on LabvIEw can be used as a computer to excite, respond to data acquisition and uuT module. The control mode of MxI bus is adopted. Special signal generator provides analog excitation signal for uuT, matrix switch and adapter complete switching between different signals. The main control computer executes the test program, the signal generator sends the excitation signal, the data acquisition card collects the data, after the data acquisition is adjusted, and compares with the standard data | dagger whether it meets the corresponding test results.)

本程序体现在NI LabVIEW 环境里实现高速数据文件存储和回放。 当连续存储大量数据时,使用TDMS格式高效地将数据。(This procedure is reflected in the NI LabVIEW environment to achieve high-speed data file storage and playback. When a large amount of data is stored continuously, data is efficiently transmitted using the TDMS format.)

对电机进行手动控制，改变电机转速完成实验教学演示目的 (Manual control of the motor, changing the motor speed to complete the experimental teaching demonstration purposes)

基于LabVIEW8.5的最小二乘法曲线拟合研究(Based on the least-squares curve fitting LabVIEW8.5 Research)

计算几组数据的平均值，尤其在数据采集系统中使用较方便。(Averaging several sets of data, particularly the use of more convenient data acquisition system.)

说明：  阈值分割的各种方法的集合。局部阈值分割法，全局手动、自动阈值分割(A set of thresholding methods. Local Threshold Segmentation, Global Manual and Automatic Threshold Segmentation)