Patent ID: 8408057

Claim:
In combination with a hydraulic cylinder ( 16 ) including cylinder housing ( 14 ), and a piston ( 12 ) arranged so as to move in the cylinder housing ( 14 ), a measurement arrangement ( 10 , 56 ) for the determination of the position of the piston ( 12 ) in the cylinder housing ( 14 ) of the cylinder ( 16 ), comprising: a reference voltage generator arrangement ( 22 ) for the generation of a reference voltage; an application arrangement ( 24 ) coupled between the reference voltage generator arrangement ( 22 ) and the cylinder ( 16 ) for the application of a reference voltage at a first position ( 30 ) and at a second position ( 32 ), with the first position ( 30 ) being spaced from the second position ( 32 ) in a direction of movement of the piston ( 12 ) and with the first and second positions ( 30 and 32 ) being on the exterior of the cylinder ( 16 ); a detection arrangement ( 36 ) be in coupled to the first position ( 30 ), the second position ( 32 ) and to a third position ( 38 ) on the exterior of the cylinder ( 16 ), with the third position being electrically coupled to the first and second positions ( 30 and 32 ), respectively, for the detection of a measurement voltage; and an evaluation arrangement ( 40 ) being coupled to the detection arrangement ( 36 ) for determining the position of the piston within the cylinder housing.