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Wireless Communication and Power Supply Strategy for Sensor Applications Within Closed Metal Walls | IEEE Journals & Magazine | IEEE Xplore

Wireless Communication and Power Supply Strategy for Sensor Applications Within Closed Metal Walls


Abstract:

Passive or semiactive wireless sensors, i.e., sensors that require neither wires nor external power supply/batteries, are attractive for many measurement problems. Standa...Show More

Abstract:

Passive or semiactive wireless sensors, i.e., sensors that require neither wires nor external power supply/batteries, are attractive for many measurement problems. Standard approaches based on Radio Frequency Identification technology usually have difficulties when a fairly conductive matter such as steel or a large amount of water is in the vicinity of the devices. This paper investigates methods for power and data transmission, even through the metal walls, e.g., of a tank or a pipe using super low frequency carrier signals. The feasibility is demonstrated by means of finite-element analysis and laboratory experiments and validated with a prototype setup for both a steel pipe and a tin container. Experimental results for capacitive fill-level measurement inside a metallic container are reported.
Published in: IEEE Transactions on Instrumentation and Measurement ( Volume: 59, Issue: 6, June 2010)
Page(s): 1686 - 1692
Date of Publication: 03 May 2010

ISSN Information:


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