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In MEMS microassembly areas, different methods of automatic focusing are presented in the literature. All these methods have a common point. Thus, the current autofocusing methods for microscopes need to perform a scanning on all the vertical axis of the microscope in order to find the peak corresponding to the focus (sharpen image). Those methods are time consuming. Therefore, this paper presents...
Visual servoing is a key technique to automate microassembly tasks since videomicroscope is widely use to recovery informations about the scene. The parts as well as the gripper should be tracked in the images which do not deliver a complete focused view of the objects because of the weakness of the depth-of-field. The paper investigates the problem of computing the 3D orientation of a rigid body...
The paper deals with the manipulation of silicon microcomponents in order to assembly automatically. The size of the components vary from 600 mum times 400 mum times 100 mum to 300 mum times 300 mum times 100 mum with a notch of 100 mum thickness on every side. The microassembly process is split up into elementary tasks (aligning component, positioning component, centering component, opening gripper,...
Serial micro-assembly requires high precision robots able to produce translations and rotations to position and orient objects during assembly. In micro-scale, the translation ranges required are typically up to the millimeter and can be obtained with smart devices (piezomotor, etc.). In the other hand, the rotation ranges stay identical to the macroscale (eg. 90deg) and require standard guidings...
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