Interdigital Piezopolymer Transducers for Time of Flight Measurements with Ultrasonic Lamb Waves on Carbon-Epoxy Composites under Pure Bending Stress

<div>Zoom on sensors applied to sample of CFRP. 1: longitudinal gage, 2: transversal gage, 3: gage used to compensate the thermal drift of the other two, 4: portion of the same CFRP sample used for compensation gage without mechanical stress, 5: IDT for signal transmission (Tx-IDT), 6: IDT for signal detection (Rx-IDT), and 7: CFRP sample.</div>

Journal of Sensors

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Figure 12

Figure 12: Interdigital Piezopolymer Transducers for Time of Flight Measurements with Ultrasonic Lamb Waves on Carbon-Epoxy Composites under Pure Bending Stress 

Figure 12 | Interdigital Piezopolymer Transducers for Time of Flight Measurements with Ultrasonic Lamb Waves on Carbon-Epoxy Composites under Pure Bending Stress 