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ELF magnetic field exposure system with feedback‐controlled disturbance rejection
Author(s) -
Wang P.K.C.
Publication year - 1997
Publication title -
bioelectromagnetics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.435
H-Index - 81
eISSN - 1521-186X
pISSN - 0197-8462
DOI - 10.1002/(sici)1521-186x(1997)18:4<299::aid-bem2>3.0.co;2-y
Subject(s) - disturbance (geology) , bioelectromagnetics , magnetic field , control theory (sociology) , environmental science , physics , computer science , biology , control (management) , artificial intelligence , paleontology , quantum mechanics
Abstract Extremely low‐frequency (ELF) magnetic field exposure systems are usually subject to field disturbances induced by external sources. Here, a method for designing a feedback control system for cancelling the effect of external ELF magnetic field disturbances on the magnetic field over the exposure area is presented. This method was used in the design of a feedback‐controlled exposure system for an inverted microscope stage. The effectiveness of the proposed feedback control system for disturbance rejection was verified experimentally and by means of computer simulation. Bioelectromagnetics 18:299–306, 1997. © 1997 Wiley‐Liss, Inc.