Patent ID: 7908758

Claim:
Profile measuring device for the measurement of a profile of a surface of a narrow body ( 7 ), especially the profiles of the surface of a wall of a tube end comprising: a holding device ( 8 ) for the body ( 7 ); a first measuring arm ( 4 ) with a first probe head ( 9 ) being relatively movable to the at least one measuring arm ( 4 ) while scanning the surface during the measurement; a second measuring arm ( 6 ) with a second probe head ( 11 ) being relatively movable to the second measuring arm ( 6 ) while scanning the surface during the measurement; a first probe head sensor ( 26 ) measuring the first relative movement (S 1 ) between the first probe head ( 9 , 11 ) and the first measuring arm ( 4 , 6 ); a second probe head sensor ( 27 ) measuring the second relative movement (S 2 ) of the second probe head ( 11 ) and the second measuring arm ( 6 ); a travel device ( 2 , 3 ) changing the relative position between the first measuring arm ( 4 ) and the surface, and the second measuring arm ( 6 ) and the surface in a one dimensional travel direction (L) during the measurement; and whereby the first relative movement direction (S 1 ) is inclined to the travel direction (L) and the second relative movement direction (S 2 ) is inclined to the travel direction (L) and inclined to the first relative movement direction (S 1 ).