Open AccessМетод расчета нестационарного теплового потока по сигналу датчика на основе анизотропных термоэлементов из монокристалла висмута
Author(s) -
П.А. Попов,
С.В. Бобашев,
Б.И. Резников,
В.А. Сахаров
Publication year - 2018
Publication title -
pisʹma v žurnal tehničeskoj fiziki
Language(s) - English
Resource type - Journals
eISSN - 1726-7471
pISSN - 0320-0116
DOI - 10.21883/pjtf.2018.08.45960.17036
Subject(s) - bismuth , crystal (programming language) , materials science , heat flux , signal (programming language) , flux (metallurgy) , anisotropy , thermal , thermodynamics , optics , physics , heat transfer , computer science , metallurgy , programming language
We propose a method for calculating nonstationary heat fluxes using the electric-response signal of a sensor based on anisotropic bismuth single-crystal thermoelements. Using this method, it is possible to approximately calculate the heat flux during a period of time from ∼1 μs to the attainment of a stationary thermal regime. Tests showed that the monitoring of short-term ( t ∼ 1–10 ms) heat fluxes by bismuth-crystal-based sensors with a crystal length to thickness ratio of above 25 ensures a calculation error not exceeding several percent.