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DEFROSTING APPARATUS WITH TWO-FACTOR MASS ESTIMATION AND METHODS OF OPERATION THEREOF
DEFROSTING APPARATUS WITH TWO-FACTOR MASS ESTIMATION AND METHODS OF OPERATION THEREOF
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机译:两因素质量估计的除霜装置及其操作方法
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摘要
A defrosting system includes an RF signal source, one or more electrodes, a transmission path between the RF signal source and the electrode(s), and an impedance matching network coupled along the transmission path. A system controller may modify the impedance matching network to reduce the reflected signal power. The system controller may determine an initial estimate of the mass of the load. Desired signal parameters for the RF signal may be determined based on the initial estimated mass of the load. The system controller may determine a refined estimate of the load mass based on a rate of change of an S11, VSWR, or reflected power parameter measured at the transmission path, or based on elapsed time between matches. Refined signal parameters for the RF signal may be determined based on the refined estimated mass.
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