Smoothest Control Lines

Our trademark innovation for Random Vibration

Introducing iDOF®, Vibration Research’s latest trademark test module designed to show the problem of over or under testing of high value products, such as those made in the aerospace industry. When high value products fail to perform in real-life, often due to improper vibration testing, the consequences can border on catastrophic. iDOF enables companies to run highly accurate vibration tests in a condensed period while ensuring their products are tested just the right amount of time.

Bridging the Gap Between Lab and Reality

Vibration Test Technicians and Lab Managers appreciate the “perfect world scenario” that iDOF offers. It’s the innovation that the vibration control industry has needed for some time. As innovators in vibration control, Vibration Research listened to your needs and has responded!

In using iDOF, your PSD plots will:

  • Display incoming test data at all times of the test
  • Abide by the degrees of freedom prescribed by the user; and
  • Resets averaging during the changes in level
  • Test engineers can expect to quickly see a smooth line except when real-life resonances and vibration patterns dictates that a raggedness should appear. In those cases, you are able to make a decision to abort the test before your products are damaged in the process.

    Too often, vibration tests are run to “force fit” a smooth line by running them at a low level (below demand) and taking that averaged PSD and simply multiplying it by a factor to bring it to full level. This method is invalid as it’s based on the false assumption that the behaviors of a product at a high level would exactly mimic that of it at a low level. This vibration testing protocol is unfortunately very common and is exactly why high value products are over and under tested.

    Harness the exactness, efficiencies and peace-of-mind that iDOF offers to vibration control practitioners. For more information download our White Paper and DOF Calculator below, and be sure to watch our video.

    Demo Software

    Earthquake Testing Live Video
    Learn about iDOF and how it can help.

    Download iDOF White Paper
    An Exploration of Power Spectral Density Estimation with an intro to iDOF.

    Download DOF calculator
    The easy-to-use DOF calculator helps you asssess the probability of satisfying tolerance of Random vibration tests.


    The Innovator in Sound and Vibration Technology