信号发生器vi设计

该程序可用于控制keithley2600数字源表测量太阳电池的IV曲线。可设置正反扫描次数，实时显示测量结果，并计算Jsc，Voc，FF，eff等电池参数。程序IVnew是总程序，除子程序外，还包括NI公司网站上提供的keithley2600程序包（必要）。(The program can be used to control keithley2600 digital source meter to measure the solar cell IV curve. Can be set to the number of positive and negative scanning, real-time display of measurement results, and calculate the cell parameters of Jsc, Voc, FF, eff. The program ‘IVnew’is the final program.)

傅里叶变换 LabVIEW的源码 希望对广大学习有些帮助 (Fourier transform LabVIEW source code hope the majority of learning some help)

优点：1，PPI协议通讯速度快，比OPC ，PCAccess，Modbus 快4-5倍左右。(就这一条优点就足了，呵呵) 2，PLC端无需编写任何通讯程序。 3，可以直接对PLC进行，RUN STOP等操作。 4，本程序全部采用LABVIEW底层程序框图，没用调用任何的DLL ，API等。这点对你学习还是修改程序功能都很有帮助，方便。 (Advantages: 1, PPI protocol communications faster than OPC, PCAccess, Modbus about 4-5 times faster. (On which an advantage on the feet, huh, huh) 2, PLC-side without writing any communication program. 3, can be carried out directly on the PLC, RUN STOP operation. 4, the procedure used in all LABVIEW underlying the block diagram, useless to call any DLL, API, etc. This is for you to learn or modify the program features are very helpful and convenient.)

labview 程序，实现框选操作，可以用于图像的截图显示VI(Screenshot labview program to achieve marquee operation, can be used to display an image VI)

用labview编写的基于TCP/IP协议的服务器与客户端通信程序。(Prepared using LabVIEW-based TCP/IP protocol server and client communication program.)

说明：  用labview对数据库进行访问链接的介绍和例程，初学者应该具备数据库知识。(Introduction to using labview for database access links and routines, beginners should have database knowledge.)

主要用于labview excel读取（源代码）(Mainly used for reading LabVIEW excel (source code))

labview与数据库SQL的连接应用程序，想学习labview调用数据库的人可以以此作为研读的范例。(labview connection with the database SQL applications that want to learn labview call database as the study example....)

基于Labview的数据存储，将采集到的信号经过GPRS模块串口通信 并存储在指定文件里。(Labview based data storage, the collected signals through the GPRS serial communication module and stored in the specified file.)

用LABview编写的GPIB并口通信程序(Labview GPIB prepared to use parallel port communication program)