Proceedings ArticleDOI
Thermographic Imaging At Millimeter And Centimeter Wavelengths
Jochen Edrich
- Vol. 0070, pp 375-378
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TLDR
Theoretical considerations and experiments show that thermography at centimeter wavelengths offers an attractive penetration depth of more than one centimeter; however, it is not well suited for remote imaging of the temperature of the human body because of its marginal spatial resolution and the required large distance between the receiver and the object.Abstract:
Theoretical considerations and experiments show that thermography at centimeter wavelengths offers an attractive penetration depth of more than one centimeter; however it is not well suited for remote imaging of the temperature of the human body because of its marginal spatial resolution and the required large distance between the receiver and the object. Millimeter wave thermography tests around 45 GHz show that a spatial resolution of a few millimeters and a temperature resolution of 0.1°K can be achieved. A penetration depth of several millimeters makes millimeter wave thermography more attractive for remote temperature sensing of deeper lying body tissues than infrared thermography.© (1976) COPYRIGHT SPIE--The International Society for Optical Engineering. Downloading of the abstract is permitted for personal use only.read more
Citations
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Journal ArticleDOI
Introduction to correlation microwave thermography.
TL;DR: Correlation microwave thermography, a new process based on a coherent detection of noise, is able to improve the localization of the thermal gradients in the tissues as discussed by the authors, and the first system which has been built and tested.
Proceedings ArticleDOI
Millimeter Wave Thermograph as Subcutaneous Indicator of Joint Inflammation
Jochen Edrich,C.J. Smyth +1 more
TL;DR: Noninvasive imaging of inflammations of human joints using a new remote scanning technique is described, which uses the mm wave radiation emitted by the human body to overcome the depth limitations of conventional infrared thermographs.
References
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Journal ArticleDOI
The dielectric behaviour of some types of human tissues at microwave frequencies
TL;DR: In this paper, the dielectric properties of four types of human tissues have been investigated by a coaxial line method at frequencies corresponding to free space wavelengths in the range 6 to 17 cm.
Journal ArticleDOI
Subcutaneous temperatures: a method of noninvasive sensing.
Alan H. Barrett,P. C. Myers +1 more
TL;DR: A new method of noninvasive sensing of the subsurface temperature distribution in human and animal tissue is described and a potential medical application is the detection of subsurfaces thermal anomalies such as malignant tumors and regions of vascular insufficiency.
Journal ArticleDOI
Dielectric properties of the human body for wave-lengths in the 1-10 cm. range.
TL;DR: These measurements have now been extended to two other wave-lengths, namely, 1.27 cm.
Journal ArticleDOI
Microwave radiometric measurements of the temperature inside a body
B. Enander,G. Larson +1 more
TL;DR: Temperatures inside a body have been measured by a radiometer at 0.9 to 1.2 GHz with an antenna on the surface of the body as mentioned in this paper, which may have both industrial and medical applications.
Journal ArticleDOI
Thermography at millimeter wavelengths
Jochen Edrich,P.C. Hardee +1 more
TL;DR: In this article, the human body emits thermal signals at millimeter wavelengths which can produce a thermographic image potentially useful for detection of hot spots, and the spatial resolution which can be obtained at a frequency of 45 GHz is in the order of 1.3 cm.