摘要:
Die vorliegende Erfindung betrifft ein Verfahren (10) zum Regeln eines Messvorgangs eines Koordinatenmessgeräts (46) zum Vermessen eines Messobjekts (12), wobei das Koordinatenmessgerät (46) eine Regelungseinrichtung (64) und einen Tastkopf (60) mit einem Taststift (18) aufweist, und wobei eine Relativbewegung zwischen dem Taststift (18) und einer Oberfläche (14) des Messobjekts (12) von der Regelungseinrichtung (64) geregelt wird. Des Weiteren weist die Oberfläche (14) mindestens einen tatsächlichen Abschnitt (24), der einer Messobjektoberfläche (13) entspricht, und mindestens einen virtuellen Abschnitt (26) auf. Außerdem betrifft die vorliegende Erfindung ein entsprechendes Koordinatenmessgerät und Computerprogramm.
摘要:
A method is described for calculating an optimum stand-off distance for surface position measurements to be acquired by a coordinate positioning apparatus including a measurement probe. The coordinate positioning apparatus may include a machine tool and the measurement probe may include a touch trigger probe having a deflectable stylus. The method includes the step of calculating an optimum stand-off distance using at least one measured acceleration characteristic of the coordinate positioning apparatus. In this manner, measurement cycle times may be optimised.
摘要:
A measurement apparatus, system and method for measuring objects which is easily relocatable about the object is described. The system uses an articulated-arm coordinate measuring machine (CMM) (200) and a laser tracker (400) . A retroreflector (310, 312) for use with the laser tracker is located on the arm of the articulated-arm (CMM). A common coordinate frame of reference can be determined for the CMM and the laser tracker so that the CMM can be moved. Also, points hidden from the laser tracker can be measured for example with the CMM.
摘要:
A method and apparatus for controlling or programming a measurement path for a probe mounted on a coordinate positioning apparatus (e.g. an articulating probe head mounted on a CMM) which enables both the position of the probe tip and the orientation of the probe to be varied. In a first mode, the position of the probe tip is adjusted. In a second mode the orientation of the probe is adjusted, whilst keeping the location of the probe tip unchanged. This may be achieved either online on the coordinate positioning apparatus or offline in software.
摘要:
In one embodiment, a coordinate measurement apparatus includes an articulated arm having a first end and a second end with at least a first arm segment and a second arm segment therebetween. Further, the apparatus can comprise at least one ball and socket joint connecting the first arm segment to the second arm segment, with the ball and socket joint including a ball member and a socket member, and a measurement probe attached to the first end of said articulated arm.
摘要:
A probe 10 has internal circuitry capable of operating in a plurality of different modes, for example a variety of filter modes and turn off modes. A switch on the probe sends an input to a controller which is arranged to preset the mode in response to operation of the switch. The switch may be a push button 32 which is operated externally of the probe 10 by means of an actuator in the form of a plunger 34. The probe has a workpiece-contacting stylus 11 mounted on a seat from which it is deflectable. The stylus and the seat may comprise the switch. An indicator, eg an LED 44, indicates the mode in response to an output from the controller. The controller outputs a plurality of indications of different modes in a sequence and a mode is selected by operating the switch once the desired mode is indicated.