2017, Volume 12, Issue 4
Frontiers of Mechanical Engineering >> 2017, Volume 12, Issue 4 doi: 10.1007/s11465-017-0450-1
Effects of environmental media on the transmission of an inductive link in wireless microsystems
Key Laboratory of MEMS of the Ministry of Education, Southeast University, Nanjing 210096, China
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Abstract
An inductive link between two magnetically coupled coils in wireless microsystems is modeled by considering an additional parasitic capacitive link to describe the effect of environmental media. With a system of inductor-capacitor passive wireless sensors, the effects of environmental media are studied theoretically and experimentally for the first time. Results suggest that the capacitive link is non-negligible when the distance between the two coupled coils is comparable with the coupling area, particularly when the environmental medium has a large dielectric constant.
Keywords
capacitive link ; monitoring correction ; passive wireless sensor
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