| 摘要 |
An electronic measuring tape ( 11 ) that comprises a roller ( 8 ) onto which the measuring tape ( 12 ) is arranged to be wound up onto and wound out from through the roller ( 8 ) being rotated, a first end ( 3 ) of the measuring tape ( 12 ) is attached in the roller ( 8 ), and where the roller ( 8 ) is located inside a housing ( 9 a, 9 b). The invention is characterised in that a rolled up measuring tape ( 12 ) is arranged in loops on the roller ( 8 ), of which all loops are in direct contact with the surface ( 1 ) of the roller ( 8 ), in that an angle sensor ( 6 ) is arranged at the roller ( 8 ) arranged to record an angle of rotation during the rotation of the roller ( 8 ), and in that an electronic circuit ( 15 ) is arranged to convert the said angle of rotation into a length that corresponds to the length by which the measuring tape ( 12 ) has been withdrawn from the said housing ( 9 a, 9 b), and in that the measuring tape ( 12 ) records absolute values.
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