Put your phone on a cart, a table, an elevator floor, or in your hand, then record acceleration over time. Stop, look at the graph, and export a CSV.
Sensor not enabledrate: --
accel x
--
accel y
--
accel z
--
magnitude
--
time (s)
0.0
samples
0
Summary
max |a|
--
min |a|
--
avg |a|
--
interval (s)
--
duration (s)
--
Recent rows
t (s)
ax
ay
az
|a|
No data recorded yet
Units are meters per second squared. The graph shows the whole recording; the table shows the last few rows. All rows go into the CSV.
Safety. Do not throw the phone. Do not attach it to anything unsafe. Pad any cart or collision setup. Keep the phone secure.
Sensor reality. Phones report motion at roughly 30 to 60 times per second. That is fine for motion that lasts a second or more, like an elevator ride or a cart rolling. It is too slow to capture a millisecond collision, so a hard bump will read lower than it really was.