Title :
A Versatile Active Attenuator for Wide-Band and Narrow-Band Applications in Ultrasound Pulse-Echo Systems
Author :
Ophir, Jonathan ; Goldstein, Albert
Author_Institution :
RohéScientific Corporation
fDate :
3/1/1977 12:00:00 AM
Abstract :
An active calibrated attenuator which can be used with existing medical ultrasound pulse-echo systems is presented. Accurate signal attenuation over a 122-dB range is performed on signals of frequencies of up to 10 MHz. Wide-band or narrow-band operation is achieved with no insertion loss. The attenuator may also function as a preamplifier with up to 14.8-dB gain.
Keywords :
Attenuation; Attenuators; Filters; Frequency; Insertion loss; Medical diagnostic imaging; Narrowband; Pulse amplifiers; Ultra wideband technology; Ultrasonic imaging; Electronics, Medical; Transducers; Ultrasonics;
Journal_Title :
Biomedical Engineering, IEEE Transactions on
DOI :
10.1109/TBME.1977.326124
