Simon Raab

TL;DR: In this article, a counterbalance mechanism for use with a multi-joint manually positionable measuring arm of a three dimensional coordinate measurement system provides a reversible and adjustable counterbalancing force to offset the weight of the arm and facilitate its movement.

TL;DR: In this article, a method for improving the measurement accuracy of a portable coordinate measurement machine which comprises an articulated arm having jointed arm segments is presented, which includes sensing deformation of a portion of the articulated arm when the arm is placed under a load, this deformation causing an error in the measurement made by the CMM, and correcting such error in response to the sensed deformation.

TL;DR: A portable articulated arm coordinate measurement machine as discussed by the authors is composed of a manually positionable articulated arm having opposed first and second ends, the articulated arm including a plurality of connected arm segments, each arm segment including at least one position transducer for producing a position signal, and a probe assembly including a probe end and a handle.

TL;DR: In this paper, a portable articulated arm coordinate measurement machine is described, which includes a first arm connected to a second arm segment by a connecting segment, and an electronic circuit is operably coupled to the first read head and the second read head, the electronics being configured to determine three-dimensional coordinates of the probe based at least in part on the first and second optical encoders.

TL;DR: A portable coordinate measurement machine comprises an articulated arm having jointed arm segments including a rotatable shaft, at least two spaced bearings and a housing surrounding the bearings and shaft wherein races for the bearings are formed by at least one of the following.