Apparatus for microwave heating of ceramic
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United States of America Patent
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Sep 13, 1988
Grant Date -
N/A
app pub date -
Feb 24, 1987
filing date -
Feb 21, 1986
priority date (Note) -
Expired
status (Latency Note)
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Abstract
An apparatus for heating a ceramic by microwave power. The apparatus has a cavity resonator in which the ceramic is placed. The resonator is provided with a variable iris. The apparatus detects the temperature of the ceramic or other state of the ceramic, and adjusts the area of the opening in the iris in the resonator and the resonant frequency of the resonator according to the signal produced by the detection, in order to bring the resonator substantially into resonance and the degree of coupling to exactly or nearly unity. Alternatively, the apparatus adjusts its microwave power for these purposes. The apparatus can heat the ceramic efficiently at a desired heating rate.
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