Abstract: This article focused on investigating the resonance frequency of piezoelectric transducers (PZTs) and the impact of different compensation methods on the performance of ultrasonic wireless .

The below circuit diagram shows the complete hardware wiring setup of the Arduino-based Smart Walking Stick for the Blind people, detailing how the Arduino Nano, Ultrasonic sensors, Buzzer, and Led ...

An op-amp integrator circuit is used to track these changes ... the hardware consists of both an ultrasonic transmitter and a receiver. An ultrasonic pulse is transmitted against the finger ...

Not so, if you use a pair of specialised ultrasonic transducer arrays to move the air instead! (Video, embedded below) Three banks of thrusters provide a 180 degree steerable net force Details are ...