Resonance - Vibration Analysis

Kodapro

In-app purchases

About this app

Resonance turns your smartphone into a professional vibration analysis instrument. Measure, record, and analyze vibrations with real-time spectral analysis — on-site, in seconds.

Real-Time Analysis:
• Live accelerometer streaming with instant frequency domain charts
• Power Spectral Density (PSD) and FFT analysis
• Configurable window functions (Hanning, Blackman, and more)
• Velocity and displacement computed from acceleration data

Bluetooth Sensor Support:
• Connect external Bluetooth accelerometers for higher precision
• Compatible with Witmotion sensors (WT9011DCL)
• Seamless pairing and real-time data streaming

Powerful Tools:
• Damping ratio estimation
• Customizable units (G, m/s², mm/s, G²/Hz)
• Adjustable recording delay and duration
• Tap-to-inspect crosshair on all charts

Export & Share:
• Export raw data as CSV for further analysis
• Generate professional PDF reports
• Save and revisit past recordings on-device

Versatile Applications:
• Assess suspended floor serviceability
• Measure fundamental periods of structures
• Diagnose problematic floor or machinery vibrations
• Detect resonance issues
• Aid in isolator mount design and validation
• Vehicle NVH and HVAC vibration diagnostics

Perfect for engineers, architects, technicians, researchers, and hobbyists seeking vibration analysis on the go.

Available in English, Spanish, German, French, Portuguese, Russian, Japanese, Chinese (Simplified & Traditional).

Disclaimer: Use of the Resonance Vibration Analysis app is at your own risk. The app is provided on an AS-IS basis. We do not assume responsibility for decisions made by users based solely on information provided by this app.

Ratings and reviews

was looking for an infra sound detector, this works brilliantly. 3 visual monitoring options, easy to read and easy to use. Tested it in front of infra speakers, it works well. I recommend not holing your device as it works on vibration via the accelerometer in said device.

only works with one type of wimotion sensor. doesn't say that anywhere in the description, and you can't see what kind until you pay the fee. wt9011dcl is what they have listed as the compatible model, if anyone's curious.

great app, but not sure damping ratio is accurate... very strange results which appear reversed to experimental conditions, ie. increased damping appears to produce inverse results in my cases.

What’s new

Improved Bluetooth Stability
Simplified CSV export naming
Quick CSV export option added
Improved UI for the record screen
Bug fixes