变频器控制(485)

labview使用改进BP 神经网络方法实现(labview improved BP neural network method)

Labview基础练习以及几种简单数字门电路、触发器、译码器等的实现(Labview-based exercises and some simple digital gates, flip-flops, such as the realization of the decoder)

说明：  labview 的入门程序，最好的入门资料就是自己编的小程序，供大家参考( LabVIEW)

说明：  噪声检测，声卡采集，频率分析，数据统计分析，均方根(Noise detector,Sound card acquisition,frequency analysis,Statistical analysis of data,Root mean square)

说明：  labview实验教学实例，内含实验指导书，大多为循环的使用。(LabVIEW experimental teaching examples, including experimental guidance, mostly for the use of circulation.)

1．采用Labview设计一虚拟函数信号发生器， 通过数据采集卡输出波形信号，调节信号的相关参数，可观察示波器上波形的变化情况。 ⑴ 以NI MyDAQ数据采集卡作为输出接口； ⑵ 数据采集卡输出多种信号，至少完成三种波形：正弦波、三角波、方波(可调占空比)的输出，同时前面板上显示各输出波形； ⑶ 频率、幅值、初相位、直流偏移量和方波的占空比（0～100 ）等参数可以通过前面板控件调节。 ⑷ 前面板可显示输出波形。(1. Labview design using a virtual function signal generator, data acquisition card output waveform signal, adjust the relevant parameters of the signal can be observed on an oscilloscope waveform changes. ⑴ with NI MyDAQ data acquisition card as output interface ⑵ data acquisition card output a variety of signals, to complete at least three waveforms: sine wave output, triangle wave, square wave (adjustable duty cycle), while each of the output waveform is displayed on the front panel ⑶ frequency, amplitude, initial phase, the DC offset and duty cycle square wave (0 to 100 ) and other parameters via the front panel controls to adjust. ⑷ output waveform can be displayed on the front panel.)

using labview to open camera

说明：  通过FOR函数，以及FOR函数中的移位寄存器实现累加运算(Accumulative operation is realized by FOR function and shift register in FOR function)

编写软件为labview2011，功能为读取txt文件中的值，并绘制电平图，设置了双游标，可以自动准确计算出两游标X轴时间差值。txt的内容为上升沿或下降沿的时间信息，首位0代表下降沿，1代表上升沿。后面位的值乘16代表沿的绝对时间(program software is the labview2011, functions is to read txt file values​ ​ , and draw level diagram, set up a dual cursors, you can automatically and accurately calculate the time difference between the two cursors X axis. txt contents of rising or falling time information, the first 0 represents falling, a representative of the rising edge. Followed by 16-bit value represents absolute time along)

说明：  Labview生成DLL文件的教程，适用于dll开发等。(LabVIEW to generate DLL file tutorial, suitable for DLL development and so on.)