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Journal of Microwave Power
and Electromagnetic Energy (JMPEE) |
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TITLE |
Liquid Crystal Electromagnetic Radiation Monitor [PDF] |
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AUTHORS |
G.E. Fanslow 1977 12 1 87-92 |
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Abstract Liquid Crystals having color play centered at
different temperatures are arranged on metal coated and non-metal coated dielectric
substrates and used to monitor electromagnetic radiation. While both
substrates respond to changes in ambient temperature conditions, the metallized substrate will also have temperature changes
due to absorbed radiation. The temperature-dependent light scattering
properties of the liquid crystals are used as both the temperature measuring
mechanism and the indicating mechanism, with the difference between the
temperature indications of the two substrates being a measure of the
radiation. An experimental model that measures radiation of
1 to 15 mW/cm² at 2.45 GHz is described. |
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