APPARATUS AND METHOD FOR DETERMINING THE TARGET POSITION DEVIATION OF TWO BODIES

摘要

The invention relates to an apparatus (8) for detecting a target position deviation of two bodies (10, 12), with a first measuring unit (14) for placement on the first body (10), a second measuring unit (18) for placement on the second body (12), and an evaluation unit (22). The first measuring unit (14) has means (24) to generate at least one bundle of light beams (28) and a scattering area (34) to scatter light (WV, PV) striking the scattering area, and the second measuring unit (18) has a reflector arrangement (38) to reflect the bundle of light beams (28) onto the scattering area (34). The second measuring unit (18) has a camera (36) to record images of the scattering area (34). The evaluation unit (22) is configured so as to detect from the images a deviation in target position of the bodies (10, 12). The invention additionally relates to a method to detect the deviation in target position.

主权项

1. Apparatus (8) for detecting a target position deviation of two bodies (10, 12), with a first measuring unit (14) to be placed on the first body (10), a second measuring unit (18) to be placed on the second body (12), and an evaluation unit (22);
wherein the first measuring unit (14) has means (24) to generate at least one bundle of light beams (28) and a scattering area (34) to scatter light (WV, PV) striking the scattering area; wherein the second measuring unit (18) has a reflector arrangement (38) that faces the first measuring unit (14) when the measuring units (14, 18) are placed on the corresponding bodies (10, 12) in order to reflect the bundle of light beams (28) onto the scattering area (34), and wherein the second measuring unit (18) has a camera (36) to record images of the scattering area (34); wherein the evaluation unit (22) is configured to determine at least one point of impact on the scattering area (34) of the bundle of light beams (28) reflected off the reflector arrangement (38) from the image data supplied by the camera (36) and to detect from the point of impact a deviation in the position of the first body (10) from a target position of the first body (10) and a deviation in the position of the second body (12) from a target position of the second body (12).