Glider Frequency
for glider pilots
Free
Fix your phone to anything that vibrates and measure its frequency in Hz or per minute. Glider wings, wing beats, machine vibration, springs, flexing boards — anything that repeats.
FEATURES
- Finds the frequency by running an FFT on the accelerometer waveform
- Estimates down to 0.01 Hz with a Hann window, zero padding and peak interpolation
- Automatically removes the effect of tilt
- Real-time frequency spectrum and confidence level
- 10-second average
- Adjustable analysis window (5, 10 or 20 s), sensor axis and minimum frequency
- Built-in tutorial for first-time users
HOW TO USE
1. Fix the phone firmly to the object, screen facing up
2. Press Start to begin a 3-2-1 countdown
3. Start the vibration and the frequency appears
Measurement range is roughly 0.5–50 Hz.
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
Completely redesigned.
- Much higher precision (0.01 Hz resolution)
- No longer locks to 0 Hz when the phone is tilted
- Shows the frequency spectrum and a confidence level
- Adjustable analysis window, sensor axis and minimum frequency
- New tutorial explaining how to measure
The developer, Hiroki Kijima, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Collected
The developer does not collect any data from this app.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Hiroki Kijima
- Size
- 16.4 MB
- Category
- Sports
- Compatibility
Requires iOS 15.0 or later.
- iPhone
Requires iOS 15.0 or later. - iPad
Requires iPadOS 15.0 or later. - iPod touch
Requires iOS 15.0 or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Languages
- English and Japanese
- Age Rating
4+
- 4+
- Copyright
- © Hiroki Kijima