Vibroscope 9.0

Vibroscope is a comprehensive vibration analysis application designed for iPhone devices, utilizing the built-in acceleration sensor to facilitate real-time measurement of various vibrational phenomena.

The application enables visualization of ultra-low frequency vibrations, which are typically inaudible to the human ear, providing valuable insights into subtle mechanical movements. It captures acceleration magnitudes and displays data through two-axis coordinate graphs in the horizontal plane, complemented by a time-domain waveform along the vertical axis.

Equipped with a Fast Fourier Transform (FFT) analyzer, Vibroscope allows users to examine the frequency composition of low-frequency vibrations, enhancing diagnostic capabilities. The device orientation can be adjusted to align with either horizontal or vertical axes to accommodate different measurement scenarios, including placement on floors, desks, or handheld operation.

Measurement data can be archived as log files, supporting long-term vibration monitoring and analysis. The app enables saving logs in accessible formats for review and reporting purposes.

Application Scenarios:

• Assessment of acceleration levels and frequency spectra of structures such as floors and walls during vehicular traffic.
• Evaluation of vibrational characteristics in audio equipment, including resonance issues.
• Monitoring of vibrations in trains and automobiles for maintenance or safety analysis.
• Analysis of body balance through detection of horizontal body sway.
• Measurement of seismic activity, with displayed values scaled appropriately (x100 GAL).

Key Features:

• Real-time vibration measurement with acceleration values expressed in m/s/s.
• Dual visualization modes: a 2D vector graph for horizontal axes (X-Y) and a waveform for the vertical axis (Z) over time.
• Ability to toggle display scales between linear and logarithmic representations for better interpretability of small signals.
• Display of combined 3-axis acceleration components and peak value indicators.
• Switchable display modes for instantaneous versus average acceleration readings.
• Adjustable measurement range scaling to accommodate different vibration intensities.
• FFT analysis providing frequency spectra along individual axes and composite signals, with peak frequency display.
• Graph display controls supporting axis selection and scaling customization.
• Sensor sampling period adjustable between slow and fast modes to suit measurement dynamics.
• Flexible axis orientation adjustments during operation for optimal data interpretation.
• Measurement duration configurable from one second up to one hour, with start delay options up to 20 seconds.
• FFT reference level settings available at 1e-6 m/s/s or 1e-5 m/s/s for calibration purposes.
• Snapshot function enabling capture of visual measurement results with timestamps stored in photo albums.
• Data logging feature storing XYZ-axis acceleration data and timestamps in UTF-8 text files, exportable via iTunes File Sharing or Finder on macOS Catalina and later.

Important Considerations:

• The app requires permission to access the Photos library at first use; users should enable this permission through iOS settings under "Privacy & Security > Photos."
• This application does not operate in the background; long-term measurements necessitate configuring "Auto-Lock" to "Never" within iOS settings at "Settings > General."
• Due to variability among iPhone models and sensor calibration discrepancies, measurements are intended for preliminary assessments rather than official certification. Accuracy may diminish under large vibrations or environmental noise conditions.
• Avoid operating the app during vehicular driving or machinery operation to ensure safety.
• The logarithmic scale graphs may be influenced by environmental noise, temperature fluctuations, or sensor calibration drift over time.
• Log files can be transferred between iOS devices and computers via iTunes or Finder utilities depending on the macOS version.

For further assistance and detailed information regarding Vibroscope, please consult our official support resources dedicated to iOS application usage.