Patent ID: 8677642

Claim:
A three-dimensional measuring device, characterised in that it comprises: a base intended to be fixed to a support assembly and lying in a first plane, a plate mounted so as to rotate on the base about a first axis orthogonal to the first plane, said plate being equipped with a first sensor determining the angle of rotation of the plate about the first axis, a single rocking telescopic arm, a first end of which is articulated on the plate about a second axis orthogonal to the first axis so as to be able to rock in a second plane containing the first axis and orthogonal to the second axis, the angle of rotation of said single arm about the second axis being determined by a second sensor, the second end of the single telescopic arm being provided with a measuring feeler, and the said single arm being equipped with a third sensor determining the elongation length of the arm in translation, the spatial position of the measuring feeler being determined by its polar coordinates in the fixed three-dimensional reference frame consisting of the base once the latter is fixed to the support assembly.