Heating rate dT/dt measurements developed from in-situ thermocouples using a voltage-rate interface

被引：8

作者：

Frankel, J. I. ^{[1
]}

Arimilli, R. V. ^{[1
]}

Keyhani, M. ^{[1
]}

Wu, J. ^{[1
]}

机构：

[1] Univ Tennessee, Dept Elect & Comp Engn, Knoxville, TN 37996 USA

来源：

INTERNATIONAL COMMUNICATIONS IN HEAT AND MASS TRANSFER | 2008年 / 35卷 / 08期

基金：

美国国家科学基金会;

关键词：

heating/cooling rate; voltage-rate interface; thermocouples;

D O I：

10.1016/j.icheatmasstransfer.2008.04.019

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

This paper describes results for a heating/cooling rate, dT/dt (degrees C/s) sensor developed for transient heat conduction, material sciences and health-management studies as well as for signal discrimination. The heating/cooling rate is a natural property for determining transient, heat fluxes, q '' (W/m(2)). This paper (i) describes the voltage-rate interface and its subsequent conversion to heating rate; and, (ii) presents experimental results indicating the merit and accuracy of the concept through a heat transfer experiment. Finally, it is demonstrated that a rate measurement has the additional benefit of amplifying small imperfections. This is illustrated when investigating the electrical signal generated by a thermocouple that is constructed with two junctions. (C) 2008 Elsevier Ltd. All rights reserved.

引用

页码：885 / 891

页数：7

共 13 条

[1] REDUCTION OF DATA FROM THIN-FILM HEAT-TRANSFER GAGES - A CONCISE NUMERICAL TECHNIQUE [J].

COOK, WJ ;

FELDERMA.EJ .

AIAA JOURNAL, 1966, 4 (03) :561-&

[2]

FIGLIOLA RS, 1995, THEORY DESIGN MECH M, P85

[3] Regularization of inverse heat conduction by combination of rate sensor analysis and analytic continuation [J].

Frankel, Jay I. .

JOURNAL OF ENGINEERING MATHEMATICS, 2007, 57 (02) :181-198

[4] Inferring convective and radiative heating loads from transient surface temperature measurements in the half-space [J].

Frankel, Jay I. ;

Arimilli, Rao V. .

INVERSE PROBLEMS IN SCIENCE AND ENGINEERING, 2007, 15 (05) :463-488

[5] Stabilization of ill-posed problems through thermal rate sensors [J].

Frankel, JI ;

Osborne, GE ;

Taira, K .

JOURNAL OF THERMOPHYSICS AND HEAT TRANSFER, 2006, 20 (02) :238-246

[6]

FRANKEL JI, 1999, P INT C MOD ID CONTR

[7]

FRANKEL JI, 2007, Z ANGEW MATH PH 0825

[8] DIFFERENTIATION OF APPROXIMATELY SPECIFIED FUNCTIONS [J].

GROETSCH, CW .

AMERICAN MATHEMATICAL MONTHLY, 1991, 98 (09) :847-850

[9]

Hamming R W, 1989, DIGITAL FILTERS, P284

[10] Inverse problems light: Numerical differentiation [J].

Hanke, M ;

Scherzer, O .

AMERICAN MATHEMATICAL MONTHLY, 2001, 108 (06) :512-521

← 1 2 →