FIELD: transport.
SUBSTANCE: invention relates to elevators. in control of closed structure measurement device displaces in lengthwise direction. Lateral distances between lengthwise preset reading axis of structure and structure walls, or, at least, between the point at measurement device and structure walls in, at least, one lengthwise position of measurement device in said structure.
EFFECT: determination of structure walls deviation from vertical.
27 cl, 6 dwg
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Authors
Dates
2012-09-20—Published
2007-12-07—Filed