Open AccessАкустоэлектрический преобразователь на основе электрокинетического явления потенциал течения
Author(s) -
Б.П. Шарфарец,
С.П. Дмитриев,
В.Е. Курочкин,
Ф.Ф. Легуша
Publication year - 2021
Publication title -
pisʹma v žurnal tehničeskoj fiziki
Language(s) - English
Resource type - Journals
eISSN - 1726-7471
pISSN - 0320-0116
DOI - 10.21883/pjtf.2021.24.51794.18970
Subject(s) - electrokinetic phenomena , transducer , acoustics , sensitivity (control systems) , microphone , electric field , work (physics) , mechanics , materials science , physics , engineering , thermodynamics , electronic engineering , loudspeaker , nanotechnology , quantum mechanics
A mathematical model of an acoustoelectric transducer based on the use of the electrokinetic phenomenon of the flow potential is proposed. It is shown theoretically that the flow potential increases in proportion to the strength of the constant electric pumping field, which is confirmed experimentally. The described converter has variable sensitivity. Rather large values of the sensitivity of an electrokinetic microphone have been obtained experimentally. The results of the work can be used in the design of acoustoelectric transducers.