An ultrasonic spike pulse emission circuit.

Experience with an ultrasonic foetal pulse detector.

Ultrasonic Sensor Amplifier Circuit

Ultrasonic receiver circuit with Phase-locked loop 4046 Ultrasonic amplifier with high amplification factor · Transformer-coupled ultrasonic transmitter circuit. General-Purpose CMOS Rail-to-Rail Amplifier. ADP7104. 20 V, 500 mA, Low The circuit shown in Figure 1 is a completely self-contained distance sensor that utilizes an ultrasonic transmitter and sensitive analog receiver in conjunction.

The design of Delay Pulse Circuit for Ultrasonic Phased Array System

This paper presents the development of delay pulse circuit with 1ns resolution for both driving ultrasonic array transducers and digital receive beamforming for ultrasonic phased array system. The circuit which can supply pulses with a 1ns time resolution employs the phase shifting with phase locked loop (PLL). In this way, 6 phase clocks with 1ns phase difference are generated, which are used ...

An Energy-Efficient Spike Encoding Circuit for Speech Edge Detection

In speech processing applications, the instantaneous bandwidth of speech can be used to adaptively control the performance of an audio sensor’s analog front end. Extracting the instantaneous bandwidth of speech depends on the detection of speech edges in the time-frequency plane. In this paper, we propose a spike encoding circuit for real-time and low-power speech edge detection. The circuit ca...

Frequency modulated pulse for ultrasonic imaging in an attenuating medium

Rao, Navalgund, "Frequency modulated pulse for ultrasonic imaging in an attenuating medium" (1990). IEEE,Accessed from ABSTRACT There is now increasing theoretical and experimental evidence that ultrasound used at intensities employed clinically, can produce effects characteristic of transient cavitation. Probability to cause bioeffects by transient cavitation is immensely greater above a thres...