Coordinate measuring instrument with feeler element and optical system for measuring the position of the feeler element

Abstract

A method for measuring structures of an object using a feeler element assigned to a coordinate measuring instrument and extending from an elastic-to-bending feeler extension is disclosed wherein the feeler element is brought into contact with an object having structures to be measured and the position of the feeler is then determined by comparing the position of the feeler as determined by the coordinate measuring instrument with the position determined by the optical sensor.

1 . A method for measurement of structures of an object by means of a feeler element assigned to a coordinate measuring instrument and brought into contact with the object and whose position is then indirectly or directly determined, wherein the position of the feeler element is determined directly or a position of at least one target assigned directly to the feeler element is determined with an optical system for measurement of the structure of the object.  
   
   
       2 - 14 . (canceled).  
   
   
       15 . Array for measurement of structures of an object ( 12 ) by means of a feeler assigned to a coordinate measuring instrument and comprising a feeler element ( 14 ) and preferably a feeler extension ( 16 , 38 ), wherein the coordinate measuring instrument ( 22 ) comprises a sensor for optical determination of the feeler element ( 14 ) and/or of at least one target directly assigned thereto, and an evaluation unit with which the structure is calculated from the position of the optical system relative to the coordinate system of the coordinate measuring instrument and from the position of the feeler element and/or of the target measured directly using the optical system, and wherein the sensor forms the feeler element with at least one jointly adjustable unit and wherein the feeler element ( 14 ) and/or target ( 46 ,  48 ,  50 ) is designed as a reflector.  
   
   
       16 . (cancelled).  
   
   
       17 . Array according to  claim 1  wherein the feeler element ( 14 ) and/or target ( 46 ,  48 ,  50 ) is designed self-emitting.  
   
   
       18 . Array according to  claim 1  wherein the feeler element ( 14 ) and/or target ( 46 ,  48 ,  50 ) is a body such as a ball or cylinder spatially emitting or reflecting a beam.  
   
   
       19 . Array according to  claim 1  wherein the feeler extension ( 38 ) is designed at least in some sections elastic to bending and/or as a light guide comprising a light guide.  
   
   
       20 - 25 . (canceled).  
   
   
       26 . Array according to  claim 1  wherein the feeler ( 18 ) extends from a holder ( 20 ) that is adjustable be at least three degrees of freedom, preferably five, and preferably interchangeable.  
   
   
       27 - 28 . (cancelled).  
   
   
       29 . Array according to  claim 1  wherein the feeler element ( 14 ) and/or the target ( 46 ,  48 ,  50 ) has or is a self-lighting electronic element such as an LED.  
   
   
       30 - 34 . (cancelled).