Infrared measurements of electromagnetic fields

Norgard, John D.; Metzger, D.; Sega, Ronald M.; Harrison, M.; Komar, R.; Pohle, Hugh; Schmelzel, A.; Smith, Mary Ann H.; Stupic, J.; Seifert, M.; Cleary, John

doi:10.21611/qirt.1992.048

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“…Infrared thermography has been used for the visualization of electric fields [1][2][3][4][5][6][7][8][9][10][11][12][13][14]. This technique uses a thin absorption screen of carbon loaded polymer.…”

Section: Introductionmentioning

confidence: 99%

Fault detection of antenna arrays using infrared thermography

Muzaffar

Giri

Chatterjee

et al. 2015

Infrared Physics & Technology

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Section: Introductionmentioning

confidence: 99%

Fault detection of antenna arrays using infrared thermography

Muzaffar

Giri

Chatterjee

et al. 2015

Infrared Physics & Technology

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“…e thickness of the film o diffusion length I( thermal diffusivity of a material Infrared (IR) thermography is used since several years as an imaging tool for mapping microwave fields in free field conditions or in cavities, surface current and surface charge distributions on conducting structures, or more recently, energy absorption in microwave absorbing materials [1][2].The heat produced by the electromagnetic (EM) waves absorption by various materials and structures is imaged with the following advantages : non contact measurements, fast operations, possible reversibility of the phenomenon, easy handling of data.…”

Section: Introductionmentioning

confidence: 99%

Lock-in infrared thermography applied to the characterization of electromagnetic fields

Nacitas¹,

Lévesque²,

Balageas³

1994

Proceedings of the 1994 International Conference on Quantitative InfraRed Thermography

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Lock-in infrared thermographic systems developed since more than ten years allow the measurement of both amplitude and phase of periodic temperature fields. They have been essentially used for mechanical testing, mainly for stress field analysis, and for NDE. The present system is applied to the quantitative characterization of electromagnetic fields. The modulated amplitude of the temperature leads to the intensity of the field. The purpose of such a system is to eliminate both radiato-convective and conductive effects which produce a blurring of the thermal image and hence degrade the accuracy of the measurement. Experiments demonstrate the real enhancement of the technique when compared to classical steady state measurements. The interest of the thermal phase image is also presented.

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Infrared measurements of electromagnetic fields

Cited by 2 publications

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Fault detection of antenna arrays using infrared thermography

Fault detection of antenna arrays using infrared thermography

Lock-in infrared thermography applied to the characterization of electromagnetic fields

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