FIELD: construction.
SUBSTANCE: device includes transformer with short-circuit secondary winding, which is represented by metal eaves. Owing to a feedback sensor, adjustable connection pulse duration of the primary transformer winding allows for selection of eaves vibration at a frequency equal to natural frequency of eaves with icicles.
EFFECT: enhanced operational reliability of roof.
1 dwg
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Authors
Dates
2015-02-20—Published
2013-09-05—Filed