Gain Instant Insights Into Your Measurement Data With LabVIEW NXG

Publish Date: May 19, 2017 | 1 Ratings | 4.00 out of 5 | Print

Overview

LabVIEW NXG is development software with engineering workflows built to interactively acquire and visualize data sets. With inherent data exploration, LabVIEW NXG is the ideal tool to turn data collection into real insights. Then when needed, using the same analysis configurations, you can rapidly transition to customize your test and measurement system with a native development environment tailored to your specific needs. This white paper discusses how you can use LabVIEW NXG to analyze your measurement data.

 

     



Table of Contents

  1. Instant Insights
  2. LabVIEW NXG Data Pane
  3. LabVIEW NXG Data Viewer
  4. LabVIEW NXG Analysis Panels
  5. Programming Optional
  6. Additional Resources

1. Instant Insights

The goal of every measurement application is to collect data to make informed decisions. LabVIEW NXG integrates data capture and analysis into the development environment for instant insights.

 

Figure 1: See how to filter an audio signal using LabVIEW NXG. 

 

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2. LabVIEW NXG Data Pane

To help you save time when finding data, LabVIEW NXG stores recordings and captures in the Data Pane where all data directly tied to the project is managed. With the Data Pane, you can:

  •  Capture data of signals directly from Measurement Panels with a snapshot of the current panel data, a continuous recording you manually start and stop, or a timed recording.
  •  Import and export recordings and captures from and to CSV and Technical Data Management Streaming (TDMS) file formats.

 

Figure 2: Recordings and captures are stored in the Data Pane where all data tied to the project is managed. 

 

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3. LabVIEW NXG Data Viewer

The Data Viewer gives you the ability to focus on sections of the signal that are of most interest. With the Data Viewer, you can:

  •  Double-click recordings or captures within the Data Pane to open the Data Viewer.
  •  Zoom in to a section of interest using the overview panel at the top of the Data Viewer.
  •  Sweep through individual data points in the signal using the interactive cursor.
  •  View data in graph, statistics, or table form.
  •  Save the section of data you’re viewing with the Capture Selected Data button.

 

Figure 3: Focus on interesting data points using the Data Viewer. 

 

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4. LabVIEW NXG Analysis Panels

Quickly gain insights from your data using interactive Analysis Panels that feature analysis options like FFT spectrums, filters, limit testing, and more. With Analysis Panels, you can:

  •  Instantly view results of applying analysis to verify parameters.
  •  Capture and store analysis results to the Data Pane.
  •  Automatically configure code with your configured settings to be used for inline processing in VIs.

 

Figure 4: Quickly gain insights from your data using interactive Analysis Panels. 

 

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5. Programming Optional

At one point or another you may need to automate an analysis or perform it programmatically. LabVIEW NXG makes the transition simple with configured code from Analysis Panels you can copy and paste into your block diagram as well as the benefits of programming with a software environment built specifically for engineers and scientists. For more information, see the Storing and Managing Data Lesson included with LabVIEW NXG.

 

 

Figure 5: Storing and Managing Lesson Included With LabVIEW NXG. 

 

Inline Analysis

LabVIEW offers analysis and mathematical routines that natively work together with DAQ functions and display capabilities, so they can be easily built into any application. In addition, LabVIEW offers analysis routines for point-by-point execution; these are designed specifically to meet the needs of inline analysis in applications.

 

LabVIEW Analysis Categories

LabVIEW NXG offers built-in functions designed specifically for engineering and scientific analysis with which you can address a wide range of applications. For example, advanced analysis functions can measure signal characteristics such as total harmonic distortion, impulse response, frequency response, and cross-power spectrum. You can also incorporate mathematics or numerical analysis into your applications for solving differential equations, optimization, root finding, and other mathematical problems. Built-in functions make it easy to work quickly on the problem instead of the tools. You can then modify, customize, and extend these functions to suit specific needs.

 

 

Figure 6: These functions are grouped in the function palette on the block diagram in math, signal processing, and control palettes. 

 

Reuse Existing Analysis Scripts

Integrate your existing analysis scripts and algorithms with LabVIEW NXG using the MathScript and C Nodes included in the “Program Flow” function palette. For more information see the MathScript and C Node Fundamentals examples included with LabVIEW NXG.

 

 

Figure 7: Integrate .m code into LabVIEW NXG using the MathScript Node. 

 

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6. Additional Resources

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