| 摘要 |
A method for computerised error compensation of three-D measuring instruments is proposed, in which the deflection of the columns in two vertical, mutually perpendicular planes is measured by means of electronic spirit-levels and fed to a computer. The errors are determined from this in terms of angular tangent functions as a function of the transverse arm overhang length and the vertical distance thereof from the plane surface of the table per coordinate to a measurement point, and are logically combined by computer with the measured value for the purpose of correction. All errors are thereby taken into consideration, including temperature influences, errors in the drive system and other external effects on the instrument.
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