Vibration Meter

CodingMSTR

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About this app

Vibration Meter turns your Android device into a vibration diagnostic utility and Fast Fourier Transform (FFT) spectrum analyzer.

By utilizing the built-in 3-axis accelerometer and linear acceleration sensors, Vibration Meter records, visualizes, and analyzes mechanical vibrations, appliance oscillations, structural resonances, and motion frequencies in real time.

Key Features:

Real-Time 3-Axis Vibration Measurement
• Simultaneous tracking across X, Y, and Z spatial axes plus total resultant vector acceleration.
• Standard measurement units: Meters per second squared (m/s²), Gravitational units (g), and Millimeters per second (mm/s).
• Digital signal filtering: Built-in DC-bias removal filter, low-pass smoothing, and high-pass mechanical vibration filters.

FFT Harmonic & Frequency Spectrum Analyzer
• Real-time Fast Fourier Transform (FFT) spectral analysis up to the sensor Nyquist limit.
• Instant dominant resonance frequency readout (Hz) to assist in identifying motor RPM harmonics, unbalanced rotating shafts, and frame resonance.
• Interactive spectrum chart with live freeze and resume inspection modes.

Machine Health & Baseline Comparison
• Save baseline vibration profiles for motors, ceiling fans, 3D printers, washing machines, pumps, and household appliances.
• Compare subsequent measurements against your established baseline to track mechanical wear, bearing looseness, or mounting changes over time.
• Side-by-side session comparison screen with delta percentages for RMS, Peak, and dominant frequency shift.

ISO 20816 Severity Classification Reference
• Real-time vibration severity color grading based on international machinery condition standards (ISO 20816 / ISO 10816).
• Visual indicators across condition categories: Very Low, Low, Moderate, High, and Very High vibration levels.

Session Recording & CSV Data Export
• Record vibration test sessions with automatic calculation of RMS, Peak, Mean, and Standard Deviation.
• Insert custom event markers during active measurement to highlight specific operating states.
• Export timestamped raw sensor time-series data to standard CSV format for in-depth analysis in spreadsheet software, MATLAB, or Python.

On-Device Privacy & Offline Functionality
• All recorded sessions, waveform data points, and machine profiles remain stored locally in an on-device database.
• No account registration, logins, or cloud synchronization required.
• Fully functional without an active network connection.

Ideal Use Cases:
• Machinery Maintenance: Inspect electric motors, fans, pumps, and gearboxes for rotational imbalance or bearing wear.
• Home Appliance Troubleshooting: Monitor spin cycle vibrations on washing machines, HVAC air handlers, and refrigerator compressors.
• 3D Printing: Measure frame oscillations and motor vibration frequencies for input-shaping calibration.
• Physics & Education: Demonstrate harmonic oscillation, mechanical resonance, dampening, and frequency response.

Hardware Notice & Disclaimer:
This application processes data from consumer-grade MEMS accelerometer hardware built into your mobile device. Sampling frequencies, noise thresholds, and sensitivity vary by device manufacturer. Vibration Meter is designed for diagnostic reference, education, and comparative maintenance monitoring. It does not replace certified industrial Class 1 vibration instrumentation or professional seismological equipment.