Coordinate measurement machines with removable accessories

摘要

A portable articulated arm coordinate measuring machine for measuring the coordinates of an object in space is provided. The AACMM includes a base and a arm portion having an opposed first end and second end. The arm portion includes a plurality of connected arm segments, each arm segment including at least one position transducer for producing a position signal. An electronic circuit is provided that receives the position signal from the at least one position transducer. A probe member is disposed is coupled to the first end. A noncontact three-dimensional measuring device is coupled to the probe member, the device having an electromagnetic radiation transmitter and is configured to determine a distance to an object based at least in part on the propagation time of the emitted and reflected light beams.

主权项

1. A portable articulated arm coordinate measuring machine (AACMM) for measuring three-dimensional coordinates of an object in space, comprising:
a base; a manually positionable arm portion having an opposed first end and second end, the arm portion being rotationally coupled to the base, the arm portion including a plurality of connected arm segments, each arm segment including at least one position transducer for producing a position signal; an electronic circuit which receives the position signal from the at least one position transducer; a probe member coupled to the first end; a noncontact measuring device coupled to the probe member, the noncontact measuring device having an electromagnetic radiation transmitter configured to send out at least one measuring beam and a receiver configured to receive at least one reflected beam, the noncontact measuring device having a mirror positioned to reflect both the at least one measuring beam and the at least one reflected beam, the noncontact measuring device further having a controller configured to determine a distance to the object based at least in part on a combined propagation time of the at least one measuring beam and the at least one reflected beams and on a speed of light in air; and a processor electrically coupled to the electronic circuit, the processor configured to determine a set of three-dimensional coordinates of a point on the object in response to receiving the position signals from the position transducers and in response to receiving the measured distance from the controller.