This paper introduces a high-voltage pulse transmitter circuit, designed to drive an array of transducers in a 3-D ultrasonic imaging system. The high-voltage pulser in this circuit adopts a push-pull ...

STMicroelectronics has introduced the STHVUP32, a 32-channel Ultrasonic Transmitter with high output current for portable applications. The new transmitter, provides ±800mA aimed at portable systems ...

US and Canadian diplomats in Cuba have mysterious ailments that were blamed on a high-frequency sonic weapon. However, ultrasonic frequencies—from 20 to 200 kilohertz—don’t propagate well in air and ...

The HC-SR04 module integrates ultrasonic transmitter, receiver, and control circuit on a single board, featuring Vcc, Gnd, Trig, and Echo pins. Sending a pulse of 10µs or more to the Trig pin ...