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Fig. 1 | Journal of NeuroEngineering and Rehabilitation

Fig. 1

From: Development of a battery-free ultrasonically powered functional electrical stimulator for movement restoration after paralyzing spinal cord injury

Fig. 1

Benchtop setup for determination of the best piezoelectric material for prototyping the stimulator. Ultrasound signal was generated by the ultrasound probe driven by a power amplifier with input signal from a function generator. Ultrasound gel was used between the ultrasound probe and the piezoelectric disc. The piezoelectric voltage was measured across a load resistance connected to the piezoelectric disc

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