buletinul institutului politehnic din iaşi - Universitatea Tehnică ...

292 Mirela Panaite et al.
To generate oscillatory movement was used laboratory stand equipped
with a crank rod mechanism (
Fig. 2). Because the laboratory stand has tyrants horizontal and vertical
the sieve block executes oscillations on three directions.
It is very difficult to follow the solid particle on the surface oscillating, so
it was used two video cameras, Sony DCR-SR 36, which has record speed is 25
frames / second. Cameras have been placed in two perpendicular planes (Fig.
3), in order to track particle movement on plans:
- XOY – camera no. 1;
- XOZ – camera no. 2.
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2
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Fig. 1. Determination of solid particle shape:
a - length, b - width, c – thickness.
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