Book Image

Data Acquisition using LabVIEW

By : Behzad Ehsani
Book Image

Data Acquisition using LabVIEW

By: Behzad Ehsani

Overview of this book

NI LabVIEW's intuitive graphical interface eliminates the steep learning curve associated with text-based languages such as C or C++. LabVIEW is a proven and powerful integrated development environment to interact with measurement and control hardware, analyze data, publish results, and distribute systems. This hands-on tutorial guide helps you harness the power of LabVIEW for data acquisition. This book begins with a quick introduction to LabVIEW, running through the fundamentals of communication and data collection. Then get to grips with the auto-code generation feature of LabVIEW using its GUI interface. You will learn how to use NI-DAQmax Data acquisition VIs, showing how LabVIEW can be used to appropriate a true physical phenomenon (such as temperature, light, and so on) and convert it to an appropriate data type that can be manipulated and analyzed with a computer. You will also learn how to create Distribution Kit for LabVIEW, acquainting yourself with various debugging techniques offered by LabVIEW to help you in situations where bugs are not letting you run your programs as intended. By the end of the book, you will have a clear idea how to build your own data acquisition system independently and much more.
Table of Contents (18 chapters)
Data Acquisition Using LabVIEW
Credits
About the Author
Acknowledgments
About the Reviewer
www.PacktPub.com
Preface
9
Alternate Software for DAQ

Capture signal generator waveforms


In Chapter 3, Using the DAQ Assistant to Automatically Generate LabVIEW Code, we generated a signal waveform and captured it through a USB DAQ. We used automation to accomplish this task. Although automation can be handy in many circumstances, the fact is, real-life data acquisition, especially in a more elaborate and complex environment, cannot possibly be available in preautomated form, and one must use standard LabVIEW functions and/or write customized functions from the ground up. In this chapter, we will use standard LabVIEW functions to acquire data and present it in human-understandable form. However, to establish a coherent comparison between what we did automatically (in other words, using express VIs) and how it might be done using standard functions (functions that are installed by LabVIEW) or custom functions (in other words, functions that are provided as drivers by a specific vendor) or those written by a LabVIEW programmer, we will redo the...