APPARATUS FOR MEASURING AN ARTICLE

摘要

There is provided a measuring device having a pair of pivoted arms, the ends of which remote from the pivot having an associated tape. The tape is fixed to one arm and extends internally through the other arm to be wound on to a biased reel located in a housing part, the reel taking up any slack in the tape.

主权项

1. A method for measuring a three dimensional object by a measurement apparatus comprising a pair of arms and an elongate measuring element extending between the arms, the measuring element having at least one extremity secured to a reel and being biased to take up slack therein, the method comprising:
placing the measurement apparatus around the three dimensional object by moving the arms relative to each other about a pivot to place the three dimensional object between the arms while placing the measurement element extending between the arms against the three dimensional object so that the measurement element follows a contour of the three dimensional object; and determining at least one measurement of the three dimensional object based on a length of the measurement element paid out from the reel or rotation of the reel or angular relative displacement of the arms.