Redistribution of fields inside a single mode cavity during H-field heating of ferrites

D. C. Dube; R. Peelamedu; D. Agrawal; R. Roy

Redistribution of fields inside a single mode cavity during H-field heating of ferrites

D. C. Dube, R. Peelamedu, D. Agrawal, R. Roy

Materials Research Institute (MRI)

Research output: Contribution to conference › Paper › peer-review

Abstract

The location of two H _max regions along the side walls of the TE ₁₀₃ single mode cavity has made convenient to measure and study changes in magnetic field rather that electric field during a field heating experiment. A probe consisting of a small loop antenna (dia. ∼ 4 mm) at one end of a 50 ohm copper cable, nearly half a meter long was designed to profile magnetic fields inside the cavity. The other end of the cable was connected to a Schottky barrier diode (BAT-46) which was fed into a current meter. This measured current is proportional to magnetic field and very well indicate the distribution of fields inside the cavity. Experiments were conducted by placing the loop close to the Fe ₃O ₄ sample and away from the sample during H-field heating. In this talk, theory, probe design, measurement details, the variation in probe current with time will be elaborately discussed. In addition to the above, application of this technique to other ferrite materials will also be discussed.

Original language	English (US)
Pages	1727
Number of pages	1
State	Published - 2004
Event	2004 AIChE Annual Meeting - Austin, TX, United States Duration: Nov 7 2004 → Nov 12 2004

Other

Other	2004 AIChE Annual Meeting
Country/Territory	United States
City	Austin, TX
Period	11/7/04 → 11/12/04

All Science Journal Classification (ASJC) codes

General Engineering

Cite this

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title = "Redistribution of fields inside a single mode cavity during H-field heating of ferrites",

abstract = "The location of two H max regions along the side walls of the TE 103 single mode cavity has made convenient to measure and study changes in magnetic field rather that electric field during a field heating experiment. A probe consisting of a small loop antenna (dia. ∼ 4 mm) at one end of a 50 ohm copper cable, nearly half a meter long was designed to profile magnetic fields inside the cavity. The other end of the cable was connected to a Schottky barrier diode (BAT-46) which was fed into a current meter. This measured current is proportional to magnetic field and very well indicate the distribution of fields inside the cavity. Experiments were conducted by placing the loop close to the Fe 3O 4 sample and away from the sample during H-field heating. In this talk, theory, probe design, measurement details, the variation in probe current with time will be elaborately discussed. In addition to the above, application of this technique to other ferrite materials will also be discussed.",

author = "Dube, {D. C.} and R. Peelamedu and D. Agrawal and R. Roy",

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language = "English (US)",

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note = "2004 AIChE Annual Meeting ; Conference date: 07-11-2004 Through 12-11-2004",

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T1 - Redistribution of fields inside a single mode cavity during H-field heating of ferrites

AU - Dube, D. C.

AU - Peelamedu, R.

AU - Agrawal, D.

AU - Roy, R.

PY - 2004

Y1 - 2004

N2 - The location of two H max regions along the side walls of the TE 103 single mode cavity has made convenient to measure and study changes in magnetic field rather that electric field during a field heating experiment. A probe consisting of a small loop antenna (dia. ∼ 4 mm) at one end of a 50 ohm copper cable, nearly half a meter long was designed to profile magnetic fields inside the cavity. The other end of the cable was connected to a Schottky barrier diode (BAT-46) which was fed into a current meter. This measured current is proportional to magnetic field and very well indicate the distribution of fields inside the cavity. Experiments were conducted by placing the loop close to the Fe 3O 4 sample and away from the sample during H-field heating. In this talk, theory, probe design, measurement details, the variation in probe current with time will be elaborately discussed. In addition to the above, application of this technique to other ferrite materials will also be discussed.

AB - The location of two H max regions along the side walls of the TE 103 single mode cavity has made convenient to measure and study changes in magnetic field rather that electric field during a field heating experiment. A probe consisting of a small loop antenna (dia. ∼ 4 mm) at one end of a 50 ohm copper cable, nearly half a meter long was designed to profile magnetic fields inside the cavity. The other end of the cable was connected to a Schottky barrier diode (BAT-46) which was fed into a current meter. This measured current is proportional to magnetic field and very well indicate the distribution of fields inside the cavity. Experiments were conducted by placing the loop close to the Fe 3O 4 sample and away from the sample during H-field heating. In this talk, theory, probe design, measurement details, the variation in probe current with time will be elaborately discussed. In addition to the above, application of this technique to other ferrite materials will also be discussed.

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T2 - 2004 AIChE Annual Meeting

Y2 - 7 November 2004 through 12 November 2004

ER -

Redistribution of fields inside a single mode cavity during H-field heating of ferrites

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