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LabVIEW Data Acquisition and Analysis Electrocardiogram and Muscle Sympathetic Nervous Activity

LabVIEW Data Acquisition and Analysis Electrocardiogram and Muscle Sympathetic Nervous Activity. Jennifer Britton Advisor: Richard Shiavi Biomedical Engineering Vanderbilt University. Project Definition.

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LabVIEW Data Acquisition and Analysis Electrocardiogram and Muscle Sympathetic Nervous Activity

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  1. LabVIEW Data Acquisition and AnalysisElectrocardiogram and Muscle Sympathetic NervousActivity Jennifer Britton Advisor: Richard Shiavi Biomedical Engineering Vanderbilt University

  2. Project Definition • The goal of this project is to improve and test the existing LabVIEW data acquistion system used by Dr. Steve Davis's Lab in the Clinical Research Center to record electrocardiograms according to desired specifications. In addition, data analysis of the acquired data will be conducted using MatLab.

  3. Objective • Upgrade LabVIEW to version 5.0 • Compartmentalize the data into fifteen-minute segments and save the data in separate files • Maintain the ability to save the data in a new file at any point during acquisition • Automatically save the files with date as part of the filename using a standard format • Provide user-control to display a specified number of charts with desired maximum and minimum limits

  4. Design Methodology Observe Exercise Study Examine Existing Program Create Mock-solutions Test Mock Solutions Incorporate devised solutions into program Test Program Conduct Analysis

  5. Equipment • Pentium, Windows 95 Micron Computer • LabVIEW 5.0 • AT-MIO-16-E-1 Data Acquisition Board • Virtual Instrument constructed in LabVIEW • Gould Machine • Function Generator (for testing purposes only) • CD Writer and Network Connection

  6. Front Panel of Program

  7. Inputs and Outputs • Inputs: Scan Rate (300 scans/second) Input Channel to DAQ board Acquisition (Yes or No?) Binary or ASCII storage format • Outputs ECG waveform Compartmentalized data files

  8. Diagram Window

  9. Current Status • Observed an exercise study • Tested current system with a function generator • Upgraded system to LabVIEW 5.0 • Created and tested simple mock-program solutions • Incorporated these solutions into the existing program • Currently, testing and debugging the program

  10. Current Dilemmas • Using execution highlighting produces the desired result; however, when executing the program under normal circumstances, the program will not compartmentalize the data. • Proposed Solution: Contact National Instruments for advice.

  11. Future Plans • Debug the program until it behaves according to specifications • Test program with Gould machine • Conduct data analysis on existing files

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