Jump to content

Search the Community

Showing results for tags 'fft'.

  • Search By Tags

    Type tags separated by commas.
  • Search By Author

Content Type


Forums

  • Software & Hardware Discussions
    • LabVIEW Community Edition
    • LabVIEW General
    • LabVIEW (By Category)
    • Hardware
  • Resources
    • LabVIEW Getting Started
    • GCentral
    • Code Repository (Certified)
    • LAVA Code on LabVIEW Tools Network
    • Code In-Development
    • OpenG
  • Community
    • LAVA Lounge
    • LabVIEW Feedback for NI
    • LabVIEW Ecosystem
  • LAVA Site Related
    • Site Feedback & Support
    • Wiki Help

Categories

  • *Uncertified*
  • LabVIEW Tools Network Certified
  • LabVIEW API
    • VI Scripting
    • JKI Right-Click Framework Plugins
    • Quick Drop Plugins
    • XNodes
  • General
  • User Interface
    • X-Controls
  • LabVIEW IDE
    • Custom Probes
  • LabVIEW OOP
  • Database & File IO
  • Machine Vision & Imaging
  • Remote Control, Monitoring and the Internet
  • Hardware

Find results in...

Find results that contain...


Date Created

  • Start

    End


Last Updated

  • Start

    End


Filter by number of...

Joined

  • Start

    End


Group


Personal Website


Company Website


Twitter Name


LinkedIn Profile


Facebook Page


Location


Interests

Found 2 results

  1. I have a data file EMG signal .tdms, the signal represented by number of samples and amplitude (24bit data). I want to perform this signal into a time domain to perform spectral analysis EMG signal. I look forward to help me continue my project. I send all write file and read file the signal EMG signals Thanks so much. P/s: Read EMG Signal read data file sEMG_1.tdms EMG monitor write EMG signal acquisition to sEMG_1.tdms Read EMG Signal.vi EMG monitor_.vi
  2. Thanks for taking the time to read my question. I'm doing the following system for my university proyect: An audiofrequency signal (0 - 20 KHz) is sampled by the PIC18F4550 ADC (AN0), and its sent to PC via USB Bulk transfer. At the PC, LabVIEW 2009 receives the data throught a subVI created by José Adrián Pérez Cueto (picusb.vi) in U8 array format. Now, when LV receives the data, the program must reconstruct the signal, and finally, do the spectral measurements in order to show the spectral components in a graph. Ok, now I explain my problem: The subVI receives the data correctly, and I successfully converted the data to digital waveform, but I fail when trying to convert to analog waveform. I need analog waveform for doing spectral measurement to that, and the U8 array is, in effect, coming from the PIC ADC. Now, I've been trying to use that array as the Y array in the Build Waveform, but there is something that I'm doing wrong, or maybe I'm forgetting something, because I haven't successfully build the waveform. How must I input the rest of the Waveform components into the Build Waveform primitive? Because it has 4 components, and the Y array component would be the U8 array My questions: How can I successfully obtain the correct analog waveform for doing the spectral measurement to that? Is there another way for getting the spectrum graph with the obtained data from the subVI? Attached in a zip file: PIC program compiled in CCS PIC-C USB Bulk Transfer subVI and its respective drivers Driver for PIC18F4550 USB device My VI, where I attempt to do spectral measurements Acquisition Card Schematic on Proteus Thanks for your help! Any redaction error, excuse me, english is not my mother language...Spectral measurement.zip
×
×
  • Create New...

Important Information

By using this site, you agree to our Terms of Use.