Design of 'Smart' pebble for sediment entrainment study

A. Dwivedi, B. Melville, E. Akeila, Z. Salcic
2008 Advances in Fluid Mechanics VII   unpublished
The 'Smart' pebble is a small self-equipped datalogger having a 40 mm outer diameter with a built-in sensor for acceleration and rotation measurements. This pebble has the capability to detect instantaneous acceleration due to turbulence in fluid, which is indicative of hydrodynamic forces acting on the pebble. The pebble stores the data continuously in its internal memory. These data can subsequently be transferred by serial port to a computer for detailed analysis. Test runs using the smart
more » ... bble have been carried out to validate accurate functioning of the acceleration and gyro sensor. The acceleration of the smart pebble was compared to the acceleration of the shake table. The results show the excellent capability of the pebble to record the instantaneous forces acting on the pebble during its entrainment.
doi:10.2495/afm080331 fatcat:yls46l4trzbl5crpgfkbzvw56m