Arduino and accelerometre

Hi evryone! How a can use accelerometre to measure irregularities and then draw 3d of surface? I use GY-521.

Accelerometers measure acceleration. How would you use acceleration to "measure irregularities"?

jremington: Accelerometers measure acceleration. How would you use acceleration to "measure irregularities"?

I see. For example, when robote with accelerometre drives through irregularities, acceleration is changing. And i want to know how to use acceleration for measure irregularities?

A gramophone stylus measures irregularities.

You could do some experiments, and test several hypotheses.

One possible hypothesis is that large acceleration = large irregularity and vice versa.