Out of balance sensor and control method for a textile processing machine
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United States of America Patent
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-
Nov 24, 1998
Grant Date -
N/A
app pub date -
Jun 11, 1997
filing date -
Jun 11, 1997
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An industrial textile processing machine having a washing chamber supported by a support structure secured to a pedestal support. The support structure is provided with a piezoelectric dynamic sensor used to sense stress on the support structure caused by vibrations of the washing chamber that result from an unbalanced load. The sensor is electrically connected to a signal conditioner which is, in turn, connected to a microprocessor that controls the machine. The sensor produces an output signal that is conditioned by a signal conditioner and then used by a microprocessor to extrapolate a control decision for the machine. The sensor is used to sense the presence of an unbalanced when the machine is operating at low speeds. If an unbalanced condition is sensed, the washer will redistribute the load so that it is sufficiently balanced before entering into high speed operation.
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