Apparatus for VAD with a vibration detector to eliminate natural vibrations
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United States of America Patent
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-
Mar 28, 1995
Grant Date -
N/A
app pub date -
Feb 15, 1994
filing date -
Feb 19, 1993
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An apparatus for producing a glass preform by VAD, includes a rotational drive device for rotating soot material, a detection device for detecting vibrations of the soot material, and a control device for controlling rotational speed of the rotational drive device. The control drive device changes the rotational speed of the rotational drive device on the basis of a detection output of the detection device.
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