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Proceedings of the International Conference on Digital Manufacturing –
Volume 2
Figure 54: Impact hammer testing
Figure 55: Testing setup
RESULTS
Measurement Of d₃₃ Coefficient
The d₃₃ coefficient tells us how good a piezoelectric material is at
converting pressure into electricity, specifically when the force
and the electric response are in the same direction. To test this,
we used a d₃₃ meter, which gently presses the material along its
polarisation direction and then records how much electric charge
it produces. It’s a reliable method that researchers often use to test
piezoelectric films and sensors. We took multiple readings to
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