NDLI: Magnetic Design for an Electrodeless Discharged Lamp

Content Provider	IEEE Xplore Digital Library
Author	Yanai, T. Sakamoto, Y. Honda, M. Takahashi, K. Nakano, M. Kakehashi, H. Fukunaga, H.
Copyright Year	1965
Abstract	We proposed an analysis method for plasma in an electrodeless discharged lamp light-emitting by inductively-coupled plasma, and a design of a power coupler was investigated by focusing on the electric power from the exciting coil to the plasma. We found that the power of the plasma was increased and of an Al stage was decreased with moving the core upward. This result suggests that the moving of the core upward is effective to reduce wasted power loss by eddy current and improves the lamp efficiency. In order to verify the result, we changed the position of the power coupler in the commercial lamp. Resultantly, the luminous flux of the lamp was increased by approximately 150 lm (lumen), when the power coupler was moved upward by 25 mm compared with the position of a commercial lamp. Therefore, we can conclude that our proposed method is applicable to the design of the lamp and suitable design is important to obtain high lamp efficiency.
Sponsorship	IEEE Magnetics Society
Starting Page	1505
Ending Page	1507
Page Count	3
File Size	510690
File Format	PDF
ISSN	00189464
Volume Number	48
Issue Number	4
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2012-04-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Plasmas Couplers Magnetic cores Analytical models Coils Eddy currents Copper inductively-coupled plasma Electrodeless discharged lamp electromagnetic field-plasma interaction analysis high frequency excitation
Content Type	Text
Resource Type	Article
Subject	Electronic, Optical and Magnetic Materials Electrical and Electronic Engineering

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4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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