Seeing is Believing!

Operating Deflection Shape video analysis of equipment operation with amplified motion.

ODS Video™ (also known as Motion Amplification ODS™) accurately measures structure surface vibration which is translated into the machine’s overall motion.

failed structural support pilings of a 25 ton vertical ball mill gear box, at three different frequencies, as indicated by the cursor. Displacement ≈ 10mills

The recording uses a standard high-speed camera typical of that used in machine vision applications.

Chronos High-Speed Camera

The video is post processed using Vibrant Technology's Me'Scope application. The result is a plot of the time waveform, the FFT of the spectrum of the motion, and a video image that is animated using either the time waveform or the spectrum data.


Industrial Equipment Being Measured and Associated Waveform

Comparison of a traditional ODS model to ODS Video™:

Traditional ODS

ODS Video™

Assessment of ODS Video™

Pros:

• The time required to gather the data image is short
• The point density is high as compared to roving accelerometers
• “A picture is worth a thousand words” (unknown author)
• Meaningful results may be obtained with minimal training
• Non-contact

Cons:

• Lighting is very important. Bright lights are required
• The image is two dimensional only. Unlike Me'Scope where the structure can be rotated.
• The camera motion needs to be taken into account.
• There is a lot of science behind the image. Be careful of mis-interpretation.

ODS Video™ Products & Services Offered By ETS

Engineering Testing Service Co. offers ODS Video™ analysis service as part of its dynamic analysis offering of modal analysis, vibration analysis and stress analysis.

As a sales rep for Me'Scope, ETS is proud to offer this test system capability as well.
The total package from Vibrant consists of:

• VT-620 Visual ODS™
  Includes unlimited storage of time waveforms, frequency spectra, & Sweep & Dwell ODS animation, video recording
• VES-3600 Advanced Signal Processing
• VES-9000 ODS Video Processing™
• VT-800 High-Speed Camera Kit™