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Анализ формы частотных зависимостей акустического cигнала при определении термодинамической температуры

Abstract

Frequency dependences of acoustic signal were measured and theoretically calculated. The conventional approximation of frequency dependence of acoustic signal by Lorentz function was compared with theoretically calculated dependence. The shift of temperature determined from acoustic resonance up to 1 mK was predicted due to the deviation of the shape of acoustic resonance maximum from Lorentz function.

About the Authors

В. Кытин
Всероссийский научно-исследовательский институт физико-технических и радиотехнических измерений
Russian Federation


Г. Кытин
Московский государственный университет им. М. В. Ломоносова
Russian Federation


References

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Review

For citations:


 ,   . Izmeritel`naya Tekhnika. 2016;(1):43-46. (In Russ.)

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ISSN 0368-1025 (Print)
ISSN 2949-5237 (Online)