NMR Tutor

NMR FID learning lab

Free

Learn NMR by shaping simulated FIDs, spectra, apodization, noise, Fourier transforms, phase, shimming, and coupling in real time. NMR Tutor is an interactive introduction to NMR data acquisition and signal processing. Use simulated free induction decays (FIDs) and spectra to explore how time-domain NMR signals become frequency-domain spectra. Adjust peak positions, decay, noise, apodization, zero filling, phase behavior, and common acquisition artifacts, then see the effect immediately in the FID and final spectrum. The app displays real and imaginary FID channels before and after processing, together with the resulting spectrum after Fourier transformation. Add noise and change the number of scans to see how signal-to-noise improves through averaging. Apply zero filling to see how digital interpolation changes the appearance of the spectrum without adding new measured data. You can also introduce common receiver or acquisition faults into the FID and observe the artifacts that appear after processing. As an advanced example, add spin-spin coupling to create an AB coupling pattern, then move the peaks or change the coupling strength to compare AB behavior with an AX spin system.

Ratings & Reviews

  • 5.0
    out of 5
    1 Ratings

Version 2.2 adds a live spectrum signal-to-noise (S/N) measurement that updates as processing controls change. Phase-pivot dragging, chart responsiveness, Dynamic Type and accessibility layouts, and translations are also improved.

Version 2.2

The developer, Tim E. Burrow, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .

  • Data Not Collected

    The developer does not collect any data from this app.

    Privacy practices may vary, for example, based on the features you use or your age. Learn More

    Accessibility

    The developer has not yet indicated which accessibility features this app supports. Learn More

    Information

    Seller
    • Tim Burrow
    Size
    • 7.1 MB
    Category
    • Education
    Compatibility
    Requires iOS 17.6 or later.
    • iPhone
      Requires iOS 17.6 or later.
    • iPad
      Requires iPadOS 17.6 or later.
    • Mac
      Requires macOS 15.6 or later.
    • Apple Vision
      Requires visionOS 1.3 or later.
    Languages
    English and 8 more
    • English, French, German, Japanese, Korean, Portuguese, Simplified Chinese, Spanish, Traditional Chinese
    Age Rating
    4+
    Copyright
    • © 2013-2026 Tim E. Burrow
  • Developer Website
  • Privacy Policy

    • More by Tim E. Burrow