Mobile Science - Acceleration 1.1.2

By Ray Wisman and Kyle Forinash, Indiana University SE.

Acknowledgements:

• Tab bar icons by Joseph Wain @ glyphish.com.
• Core-Plot utilized for plotting, available at code.google.com/p/core-plot.

This application is designed to facilitate the measurement of acceleration, velocity, and distance resulting from motion along a single axis. It effectively records up to 120,000 unfiltered measurements at variable sampling rates, ranging from 1 to 100 samples per second, while simultaneously presenting graphical representations of the data.

The functionality is straightforward: the user can initiate recording by selecting "Start," halt the process with "Stop," and conveniently share the recorded data via email using the "Send" option. The sampling rate is adjustable through a user-friendly slider bar, allowing for customization based on the user's needs.

Moreover, the application includes a calibration feature that enables users to toggle the zeroing of X, Y, and Z axis values to account for gravitational influences or other external accelerative forces affecting the device. When calibration is activated, the average measurements from the initial one-second interval are calculated and subsequently subtracted from each following measure for improved accuracy.

The user interface provides real-time visualization of acceleration, velocity, and distance for each axis through responsive buttons labeled X, Y, and Z. Additionally, real-time updates of X, Y, and Z axis values are presented through three progress bars and corresponding graphs.

A time slider allows users to navigate through recorded measurements for specific moments in time across the X, Y, and Z axes.