The transient source measurement technique is a nonintrusive, nondestructive method of measuring the thermal properties of a given sample. The transient source technique has been implemented using a wide variety of sensor shapes or configurations. The modern transient plane source (TPS) sensor is a spiral-shaped sensor element which evolved from transient line and transient hot strip (THS) source techniques. Commercially available sensors employ a flat interface that works well when test samples have a smooth, flat surface. The present work provides the basis for a new, cylindrical strip (CS) sensor configuration to be applied to cylindrical surfaces. Specifically, this work uses parameter estimation theory to compare the performance of CS sensor configurations with a variety of existing flat sensor geometries, including TPS and THS. A single-parameter model for identifying thermal conductivity and a two-parameter model for identifying both thermal conductivity as well as volumetric heat capacity are considered. Results indicate that thermal property measurements may be carried out with greater measurement sensitivity using the CS sensor configuration than similar configurations for flat geometries. In addition, this paper shows how the CS sensor may be modified to adjust the characteristic time scale of the experiment, if needed.

References

References
1.
Gustafsson
,
S.
,
1991
, “
Device for Measuring Thermal Properties of a Test Substance—The Transient Plane Source (TPS) Method
,”
U.S. Patent No. 5,044,767
.https://www.google.com/patents/US5044767
2.
Gustafsson
,
S.
,
Karawacki
,
E.
, and
Khan
,
M. N.
,
1979
, “
Transient Hot-Strip Method for Simultaneously Measuring Thermal Conductivity and Thermal Diffusivity of Solids and Fluids
,”
J. Phys. D: Appl. Phys.
,
12
(
9
), p.
1411
.
3.
Gustafsson
,
S.
, and
Karawacki
,
E. N.
,
1983
, “
Transient Hot-Strip Probe for Measuring Thermal Properties of Insulating Solids and Liquids
,”
Rev. Sci. Instrum.
,
54
(
6
), pp.
744
747
.
4.
Gustafsson
,
S.
,
1991
, “
Transient Plane Source Techniques for Thermal Conductivity and Thermal Diffusivity Measurements of Solid Materials
,”
Rev. Sci. Instrum.
,
62
(
3
), pp.
797
804
.
5.
Mathis
,
N.
,
1996
, “
Measurements of Thermal Conductivity Anisotropy in Polymer Materials
,” Ph.D. dissertation, University of New Brunswick, Fredericton, NB.
6.
Emmanuel
,
M.
,
Zhao
,
C.
,
Yu
,
B.
,
Vinnik
,
D.
, and
Rendell
,
C.
,
2014
, “
Method and Apparatus for Monitoring Materials
,”
U.S. Patent No. 2014/0369379 A1
.https://www.google.com/patents/US20140369379
7.
Bohac
,
V.
,
Gustavsson
,
M.
,
Kubicar
,
L.
, and
Gustafsson
,
S.
,
2000
, “
Parameter Estimations for Measurements of Thermal Transport Properties With the Hot Disk Thermal Constants Analyzer
,”
Rev. Sci. Instrum.
,
71
(
6
), pp.
2452
2455
.
8.
Drake
,
S. J.
,
Wetz
,
D. A.
,
Ostanek
,
J. K.
,
Miller
,
S. P.
,
Heinzel
,
J. M.
, and
Jain
,
A.
,
2014
, “
Measurement of Anisotropic Thermophysical Properties of Cylindrical Li-Ion Cells
,”
J. Power Sources
,
252
, pp.
298
304
.
9.
Carslaw
,
H. S.
, and
Jaeger
,
J. C.
,
1959
,
Conduction of Heat in Solids
,
Oxford University Press
,
London, UK
.
10.
de Hoog
,
F. R.
,
Knight
,
J. H.
, and
Stokes
,
A. N.
,
1982
, “
An Improved Method for Numerical Inversion of Laplace Transforms
,”
SIAM J. Sci. Stat. Comput.
,
3
(
3
), pp.
357
366
.
11.
Beck
,
J. V.
, and
Arnold
,
K. J.
,
1977
,
Parameter Estimation in Engineering and Science
,
Wiley
,
New York, NY
.
You do not currently have access to this content.