Abstract
A smart oar blade with piezoresistive sensors on either side was developed, calibrated, and tested hydrostatically, hydrodynamically and during rowing. The hydrostatic test down to a water depth of 0.7 m returned the correct and expected pressure values (r2 = 0.9953). In the hydrodynamic test, the peak differential pressure ranged from 100 Pa to 150 Pa, corresponding to a blade velocity and displacement of approximately 0.5 m/s and 0.5 m. In the rowing tests, the peak differential pressure was approximately 800Pa, corresponding to a blade velocity and displacement of approximately 1.15 m/s and 0.9 m. The large displacement may result from the shape of the boat (gentlemen's skiff) and its load (3 people).
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