Figure 1 Schematic diagram of an existing ultrasonic filter (top) and a topological ultrasonic circuit (bottom) Note. Existing ultrasonic filters have a single filter function per device. On the other ...

This paper proposes an ultrasonic transmitting and receiving circuit system based on DYSTM32F4 high-frequency ultrasonic development board, which is used in the research of drilling ultrasonic logging ...

This circuit generates inaudible ultrasound to make a barrier across the entry. At the moment the circuit detects a break in the sound barrier, it generates a loud alarm indicating the entry of a ...

This paper presents the simple ultrasonic measuring circuit using sample and hold method. The proposed method is to measure the transit time of ultrasonic wave in fluid. The system consists of the ...

Using ultrasonic technology, this 3D printer offers a gentle, non-contact method to manipulate material particles and sensitive components into full electronic circuits. Ultrasonic research ...

Ultrasonic welding is a very fast and precise process that has been used in various product fields, such as the automotive industry, food production, packaging industry or office equipment ...