强制类型转换说明

说明：  Labview汽轮机振动监测源代码，对信号进行倒频谱分析(Labview example)

1）、设计一个程序控制8个外设小灯的点亮方式，要求两种方式A:每个小灯间隔时间T，依次亮，时间T可调，并循环。B：先1.3.5.7.9亮隔时间T，2.4.6.8.10亮，并循环，T可调。 2）、要求主面板与硬件的8个小灯同步。 3）、通过网络在另一台计算机上控制此程序的运行（利用LabVIEW的DateSocket技术）((Network control of virtual instruments 1), design a program to control eight peripheral lights lit the way, the requirements in two ways A: each light interval T, followed by bright, time T adjustable, and circulation. B: first 1.3.5.7.9 bright every time T, 2.4.6.8.10 light, and circulating T-adjustable. 2), requires eight small lights of the main panel and hardware synchronization. 3), through the network control of this program running on another computer (using the LabVIEW DateSocket technology)))

主要是labview在串口通讯过程中，采用modbus-crc 16 位校验方法(LabVIEW is mainly used in the serial communication process, using modbus-crc 16 bit calibration method.)

labview存储数据子函数，自动生成excel 文件,excel文件以时间命名(by using the labview to storage the data,and the vi can generate the excel automaticlly)

说明：  labview与OPC通讯以欧姆龙NJ501PLC为例，希望能对大家有帮助。(Labview communicates with OPC)

这个小程序的主要功能是实现对声音信号的采集并将其波形，能量谱显示出来(This little program' s main function is to achieve the sound signal acquisition and waveform energy spectrum displayed)

此源程序为用Labview程序编制的，针对采集信号的功率进行分析。(The source code for the use of Labview programming, and for collecting the signal power for analysis.)

基于labview的频谱分析，简单的fft快速傅里叶变换(Spectrum analysis based on LabVIEW ， Simple FFT fast Fourier transform )

基于labview的双通道数据采集处理系统，双界面，含置滤波器（巴特沃斯，切比雪夫可选），含加窗数据处理，支持数据记录并回放，用了信号源仿真，只需把信号源换成输入即可(Labview-based dual-channel data acquisition and processing system, dual interface, including home filters (Butterworth, Chebyshev optional), containing windowed data processing, data recording and playback support, with a source simulation, simply put input signal source can be replaced)

说明：  用LabVIEW实现温度测控系统的WEB发布(The WEB publishing of temperature measurement and control system is realized with LabVIEW)