Thermoresistive radiation sensor response time employing electrical heating

G. S. Deep; J. S.R. Neto; A. M.N. Lima; R. C.S. Freire; P. C. Lobo

doi:10.1109/19.481364

Thermoresistive radiation sensor response time employing electrical heating

G. S. Deep, J. S.R. Neto, A. M.N. Lima, R. C.S. Freire, P. C. Lobo

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16 Scopus citations

Abstract

The thermal time constant (τ) of a thermoresistive sensor is defined in terms of its physical properties such as mass (m), specific heat (c), area (A), arid overall heat transfer coefficient (U) to the surroundings. Measurement of c and U by direct calorimetric methods may involve lengthy experimental procedures. The time constant determination using electrical heating introduces measurement error. An analytical formulation to demonstrate the origin of this error and a procedure to eliminate the same and determination of the values of τ, U A, and mc, are presented. Sensitivity considerations for the choice of appropriate sensor heating currents to minimize some of the measurement errors are also discussed.

Original language	English
Pages (from-to)	332-335
Number of pages	4
Journal	IEEE Transactions on Instrumentation and Measurement
Volume	45
Issue number	1
DOIs	https://doi.org/10.1109/19.481364
State	Published - 1996
Externally published	Yes

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title = "Thermoresistive radiation sensor response time employing electrical heating",

abstract = "The thermal time constant (τ) of a thermoresistive sensor is defined in terms of its physical properties such as mass (m), specific heat (c), area (A), arid overall heat transfer coefficient (U) to the surroundings. Measurement of c and U by direct calorimetric methods may involve lengthy experimental procedures. The time constant determination using electrical heating introduces measurement error. An analytical formulation to demonstrate the origin of this error and a procedure to eliminate the same and determination of the values of τ, U A, and mc, are presented. Sensitivity considerations for the choice of appropriate sensor heating currents to minimize some of the measurement errors are also discussed.",

author = "Deep, {G. S.} and Neto, {J. S.R.} and Lima, {A. M.N.} and Freire, {R. C.S.} and Lobo, {P. C.}",

note = "Funding Information: The authors wish to thank CNPq (Conselho Nacional de Desen-volvimento Cientifico e Tecnol6gico), CAPES (Coordenag ao de Aperfeigoamento de Pessoal de Ensino Superior), and PADCT (Plan0 de Apoio ao Desenvolvimento Cientifico e Tecnol6gico) for financial support and award of research fellowships during the course of these investigations.",

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doi = "10.1109/19.481364",

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journal = "IEEE Transactions on Instrumentation and Measurement",

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AU - Deep, G. S.

AU - Neto, J. S.R.

AU - Lima, A. M.N.

AU - Freire, R. C.S.

AU - Lobo, P. C.

N1 - Funding Information: The authors wish to thank CNPq (Conselho Nacional de Desen-volvimento Cientifico e Tecnol6gico), CAPES (Coordenag ao de Aperfeigoamento de Pessoal de Ensino Superior), and PADCT (Plan0 de Apoio ao Desenvolvimento Cientifico e Tecnol6gico) for financial support and award of research fellowships during the course of these investigations.

PY - 1996

Y1 - 1996

N2 - The thermal time constant (τ) of a thermoresistive sensor is defined in terms of its physical properties such as mass (m), specific heat (c), area (A), arid overall heat transfer coefficient (U) to the surroundings. Measurement of c and U by direct calorimetric methods may involve lengthy experimental procedures. The time constant determination using electrical heating introduces measurement error. An analytical formulation to demonstrate the origin of this error and a procedure to eliminate the same and determination of the values of τ, U A, and mc, are presented. Sensitivity considerations for the choice of appropriate sensor heating currents to minimize some of the measurement errors are also discussed.

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Thermoresistive radiation sensor response time employing electrical heating

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