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Performance of Bridgman furnace operating under projective control

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3 Author(s)
C. Batur ; Dept. of Mech. Eng., Akron Univ., OH, USA ; W. M. B. Duval ; R. J. Bennett

We present the performance of a vertical transparent multizone furnace operating under the projective control algorithm. This Bridgman type furnace is designed for crystal growth applications and can deliver thermal gradients within the range of 2-45°C/cm at the maximum temperature of 750°C. A multivariable projective control algorithm is used for the temperature control. The control system maintains desired thermal profile despite the effects of thermal loads due to a growing crystal

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American Control Conference, 1999. Proceedings of the 1999  (Volume:6 )

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