Abstract: A holder is configured to hold multiple reference standards for calibrating a measurement system. The holder includes a first receptacle that is configured to receive a first reference standard. The holder includes a second receptacle that is configured to receive a second reference standard. The holder includes a calibration jig that is configured to facilitate a bijective determination of a position and orientation of the holder in space.

Abstract: A holder is configured to hold multiple reference standards for calibrating a measurement system. The holder includes a first receptacle that is configured to receive a first reference standard. The holder includes a second receptacle that is configured to receive a second reference standard. The holder includes a calibration jig that is configured to facilitate a bijective determination of a position and orientation of the holder in space.

Abstract: A holder for a plurality of reference standards for calibrating a measurement system, having a first receptacle in which a first reference standard is arranged and a second receptacle in which a second reference standard is arranged, wherein the first receptacle is arranged on a first side of the holder, and the second receptacle is arranged on a second side of the holder facing away from the first side of the holder.

Abstract: An apparatus for measuring a surface of a workpiece has a multi-link articulated arm and a roughness sensor carried by the arm, which includes a sensing element linearly displaceable along an advance direction and elastically deflectable along a deflection direction, and which has a coupling link to connect it to a movable carrier of a coordinate measuring apparatus or of a robot. A first arm portion is rotatable relative to the coupling link about a first axis of rotation. A second arm portion is rotatable relative to the first arm portion about a second axis of rotation and arranged between the first and third arm portion which is rotatable relative to the second arm portion about a third axis of rotation, and to which the roughness sensor is fastened. The deflection direction is arranged parallel to the third axis while the sensing element is displaced linearly along the advance direction.

Abstract: A holder for a plurality of reference standards for calibrating a measurement system, having a first receptacle in which a first reference standard is arranged and a second receptacle in which a second reference standard is arranged, wherein the first receptacle is arranged on a first side of the holder, and the second receptacle is arranged on a second side of the holder facing away from the first side of the holder.

Abstract: An apparatus for measuring a surface of a workpiece has a multi-link articulated arm and a roughness sensor carried by the arm, which includes a sensing element linearly displaceable along an advance direction and elastically deflectable along a deflection direction, and which has a coupling link to connect it to a movable carrier of a coordinate measuring apparatus or of a robot. A first arm portion is rotatable relative to the coupling link about a first axis of rotation. A second arm portion is rotatable relative to the first arm portion about a second axis of rotation and arranged between the first and third arm portion which is rotatable relative to the second arm portion about a third axis of rotation, and to which the roughness sensor is fastened. The deflection direction is arranged parallel to the third axis while the sensing element is displaced linearly along the advance direction.

Abstract: A probe head for a coordinate measuring machine has a coupling part having a retaining pin, on which a probe tool is detachably arranged. The probe tool has at least one stylus for touching a measurement object, and a rotary plate. The rotary plate is coupled to the coupling part by means of the retaining pin in one of a plurality of defined rotation angle positions. Moreover, the rotary plate has a latching mechanism including at least one adjustable latching element and a detector. The latching element has a latching position in which it fastens the rotary plate on the retaining pin, and it has a release position in which it releases the retaining pin. The detector generates a signal which is representative of at least one from the latching position and the release position.

Abstract: A measuring head for a coordinate measuring machine for determining spatial coordinates on a measurement object has a coupling part for detachably receiving a measurement tool. The coupling part has a number of first bearing elements, a magnet and a retaining pin. The measurement tool has a disk with a number of second bearing elements, an anchoring plate and at least one adjustable locking element. The magnet is configured to attract the anchoring plate so as to bring the first and second bearing elements into engagement with one another. The first and second bearing elements, in the engaged state, define a defined position of the measurement tool on the coupling part. The at least one locking element secures the measurement tool to the retaining pin. The anchoring plate is detachably secured to the disk and the at least one locking element retains the anchoring plate on the retaining pin.

Abstract: A measuring head for a coordinate measuring machine for determining spatial coordinates on a measurement object has a coupling part for detachably receiving a measurement tool. The coupling part has a number of first bearing elements, a magnet and a retaining pin. The measurement tool has a disk with a number of second bearing elements, an anchoring plate and at least one adjustable locking element. The magnet is configured to attract the anchoring plate so as to bring the first and second bearing elements into engagement with one another. The first and second bearing elements, in the engaged state, define a defined position of the measurement tool on the coupling part. The at least one locking element secures the measurement tool to the retaining pin. The anchoring plate is detachably secured to the disk and the at least one locking element retains the anchoring plate on the retaining pin.

Abstract: A probe head for a coordinate measuring machine has a stylus resiliently suspended in a housing. A sensor arrangement serves for detecting deflections of the stylus relative to the housing. The sensor arrangement comprises at least one Hall sensor having a magnet and a Hall element arranged in a vicinity to each other. When the stylus is deflected, the magnet is laterally passed by the Hall element in a direction defined from the North Pole to the South Pole of the magnet or vice versa. A Hall voltage of changing polarity can be tapped at the Hall element then. A preferably linear range around the polarity change is processed in order to determine the deflection of the stylus.

Abstract: A method for correcting errors in a coordinate measuring machine having a measuring head which is adapted to move in at least two different spatial directions. Measuring scales and measuring lines are assigned to each spatial direction. The measuring lines of different spatial directions intersect, and correction values are determined along the measuring lines at predetermined values of the scales in order to correct for elastic and/or geometric errors of the scales and/or of the guiding mechanism for moving the measuring head. According to one aspect of the invention, the correction values determined along a measuring line of a first spatial direction are modified such that the modified correction value of this measuring line assumes a predetermined value at the point of intersection with a first measuring line of a second spatial direction.

Abstract: A probe head for a coordinate measuring machine has a stylus resiliently suspended in a housing. A sensor arrangement serves for detecting deflections of the stylus relative to the housing. The sensor arrangement comprises at least one Hall sensor having a magnet and a Hall element arranged in a vicinity to each other. When the stylus is deflected, the magnet is laterally passed by the Hall element in a direction defined from the North Pole to the South Pole of the magnet or vice versa. A Hall voltage of changing polarity can be tapped at the Hall element then. A preferably linear range around the polarity change is processed in order to determine the deflection of the stylus.

Abstract: The invention is directed to a probe for coordinate measuring apparatus. The apparatus includes measuring systems (15, 16, 17) for measuring the deviation of the flexible part (10) of the probe and a damping device damps the flexible part (10) of the probe. The damping device is embodied as at least one friction brake (19, 27) and the friction force of the friction brake is adjustable. The flexible part (10) of the probe can also be blocked by the friction brake (19, 27).

Abstract: A method for correcting errors in a coordinate measuring machine having a measuring head which is adapted to move in at least two different spatial directions. Measuring scales and measuring lines are assigned to each spatial direction. The measuring lines of different spatial directions intersect, and correction values are determined along the measuring lines at predetermined values of the scales in order to correct for elastic and/or geometric errors of the scales and/or of the guiding mechanism for moving the measuring head. According to one aspect of the invention, the correction values determined along a measuring line of a first spatial direction are modified such that the modified correction value of this measuring line assumes a predetermined value at the point of intersection with a first measuring line of a second spatial direction.

Abstract: The invention is directed to a probe for coordinate measuring apparatus. The apparatus includes measuring systems (15, 16, 17) for measuring the deviation of the flexible part (10) of the probe and a damping device damps the flexible part (10) of the probe. The damping device is embodied as at least one friction brake (19, 27) and the friction force of the friction brake is adjustable. The flexible part (10) of the probe can also be blocked by the friction brake (19, 27).