  This is the second part of a two-article series investigating the presence of
an inverse response in the measurement of the ingot radius in the Czochralski
process for monocrystalline silicon production, when the ingot radius is
deduced from a camera image of the bright ring at the meniscus connecting the
solid crystal to the silicon melt. Such inverse responses are known to pose a
fundamental limitation in achievable control performance. However, for the
bright ring radius measurement, the inverse response is an artefact of the
measurement technique and does not appear in the physical variable one wants to
control (the actual crystal radius). The present article addresses control for
the mitigation of the inverse response behaviour, using a combination of
parallel compensation and feedback control. The proposed design is validated
against simulations where the production process is subjected to temperature
disturbances.
