US 7,480,053 B2
Position detection based on two-directional correlation
Stefan Falk-Jordan, Karlsruhe (Germany); Bernd Nawracala, Karlsruhe (Germany); and Hans-Peter Zimmermann, Waldbronn (Germany)
Assigned to Agilent Technologies, Inc., Santa Clara, Calif. (US)
Filed on Aug. 18, 2006, as Appl. No. 11/506,528.
Claims priority of application No. 05110249.9 (EP), filed on Nov. 02, 2005.
Prior Publication US 2007/0097357 A1, May 03, 2007
Int. Cl. G01B 11/26 (2006.01); G01C 1/00 (2006.01); G01N 21/86 (2006.01); G01N 33/53 (2006.01)
U.S. Cl. 356—444  [356/246; 356/244; 250/559.29; 435/7.2] 9 Claims
OG exemplary drawing
 
8. An apparatus for determining its position of with respect to a fluidic flow path on a surface of a fluidic product, the fluidic product further including at least one auxiliary structure, that is not a fluidic flow path, on the surface, the auxiliary structure having a known spatial relationship with the fluidic flow path, the apparatus comprising
a detecting unit configured for obtaining a measure involving the auxiliary structure along a first direction on the surface;
a determining unit configured for obtaining the position of the apparatus with respect to the fluidic flow path along a second direction on the surface based on the measure obtained with the detecting unit.