Levelling system with rotating laser beam
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United States of America Patent
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Jan 12, 1988
Grant Date -
N/A
app pub date -
Dec 29, 1986
filing date -
Jan 17, 1986
priority date (Note) -
Expired
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Abstract
A levelling system with a rotating laser beam and an optoelectronic stadia is proposed, in which the height of the laser beam is varied. Several individual measurements are made during a measuring cycle and as a result of the height variation of the laser beam these give different height values. Thus, for example, 20 individual measurements can be used for determining the arithmetic mean, which considerably increases the precision of measurement.
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