Open AccessINVESTIGATION OF NOISE IN ELECTRONIC ULTRASONIC SYSTEMS
Author(s) -
Paulius Adomavičius
Publication year - 2010
Publication title -
mokslas - lietuvos ateitis
Language(s) - English
Resource type - Journals
eISSN - 2029-2341
pISSN - 2029-2252
DOI - 10.3846/mla.2010.009
Subject(s) - ultrasonic sensor , acoustics , noise (video) , limiter , amplifier , noise generator , amplitude , transducer , low noise amplifier , electronic engineering , electrical engineering , noise figure , physics , engineering , computer science , optics , cmos , artificial intelligence , image (mathematics)
Noise models in ultrasonic control system have been investigated. Ultrasonic system channel consist of exciting generator, ultrasonic transducer, amplitude limiter, amplifier, low band filter and A/D converter. The ultrasonic transducers have been described as Von Hippel model, Van Dyke model or improved Van Dyke model. Advantages and disadvantages of these models are discussed in this paper. Noise models of amplitude limiter and linear operational amplifier are presented. The summary results of calculated noise spectral density of ultrasonic system channel have been presented.
Article in Lithuanian