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Labview基于声卡的频谱分析 声卡采集声音数据,显示其波形,通过滤波器和加窗处理进行功率谱分析(Labview based sound card spectrum analysis Sound card data collection, display its waveform, through the filter and window processing power spectrum analysis)

LabVIEW基础认证(CLAD)作为LabVIEW认证的第一步，考试时间为1小时，采取多项选择的形式，测试应试者基本的技能水平、对核心软件范例的理解和对LabVIEW环境的熟悉程度。 LabVIEW程序员认证(CLD) 本认证考试内容覆盖全面，考试时间为4小时，采取上机考试的形式，测试应试者的高级技能水平，包括高级编程概念知识、编程结构以及将技能高效运用于LabVIEW程序实施的实际应用能力。 LabVIEW高级架构设计师认证(CLA)本认证考试为耗时4小时的上机考试，要求应试者对LabVIEW掌握自如。本认证考试适用于对高端系统设计、代码审查、源代码控制和高级编程技巧有着熟练掌握且经验丰富的应试者。(LabVIEW Fundamentals certification (CLAD) certification as the first step in LabVIEW, test time is 1 hour, take the form of multiple-choice test candidate basic skills, core software paradigms for understanding and familiarity with the LabVIEW environment. LabVIEW programmer certification (CLD) certification exam covering this comprehensive examination time was 4 hours, take the form of examination on the senior test the candidate s skills, including knowledge of advanced programming concepts, programming structures and the skills to effectively apply LabVIEW the practical application of program implementation capacity. Advanced Certified LabVIEW Architect (CLA) The certification exam took 4 hours on test, requires the candidate to master LabVIEW freely. The certification exam is suitable for high-end systems design, code review, source code control and advanced programming skills with proficiency and experienced candidate.)

labview程序，可以接收和发送modbus rtu协议信息。“CRC VHL”为循环冗余校验(Labview program)

自从NI-DAQmx 发布以来，NI 数据采集(DAQ)用户就充分利用了它的许多特性，这些特性是为节省开发 时间和提高数据采集应用程序的性能而设计的。 一个能节省相当大一部分开发时间的特性是NI-DAQmx 应用程序编程接口（API），它在各种设备功能 和设备系列中都是相同的。这就意味着一个多功能设备的所有功能可由同样的函数集编程得到（模拟输 入、模拟输出、数字I/O 和计数器）。而且，一个数字I/O 设备和一个模拟输出设备都可使用相同的函 数集编程得到。在LabVIEW 中，由于多态机制，因而这是可以实现的。一个多态的VI 接受各种数据类 型以用于一个或多个输入和/或输出终端。NI-DAQmx API 在它所支持的所有编程环境中也是保持一致 的。您仅仅需要学会如何使用一个单一的函数集就可以在多种编程环境中对大部分NI 数据硬件进行编 程。 (Since the release of NI-DAQmx, NI data acquisition (DAQ) users take full advantage of its many features, these characteristics are developed in order to save Time and designed to improve the performance of data acquisition applications. A large part of the development time-saving features a NI-DAQmx application programming interface (API), which function in a variety of equipment And equipment series are the same. This means that all the functions of a multifunction device by the same set of functions programming (analog input Into, analog output, digital I/O and counter). Moreover, a digital I/O device, and an analog output device can use the same letter Number set programming to get. LabVIEW, polymorphism, and thus can achieve. A polymorphic VI to accept a variety of data classes Type for one or more input and/or output terminals. NI-DAQmx API it supports all programming environment is consistent s. You just need to learn how to use a single set of functions can)

用于信捷PLC与Labview之间的通信，可以作为学习的初版(Used for the communication between Sinjie PLC and Labview, it can be used as the first edition of learning.)

说明：  用户通过数据采集卡采集到模拟数据，与预先设定的值进行比较，PID运算(Users collect analog data through data acquisition card, compare with pre-set values, and perform PID operation.)

Labview 实现调用动态链接库 有详细说明 程序案例和与案例说明 是学习的好材料！(Labview implementation calls the dynamic link library procedures are described in detail with examples and case notes are a good learning materials!)

labview 自定义控件，可以美化labview界面，这些控件有iPhone系列的，也有常用的如MP3按键类，大部分是bool类控件(labview custom control, can beautify labview interface, these controls iPhone series, also commonly used, such as MP3 key categories, most bool class control)

labview旋转机械轴心轨迹的子程序。(labview Frequency division amplitude)

LabVIEW里实现服务器功能，后面还有客户机(server)