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A compact efficient dual-wavelength eye-safe Nd:YAP Raman laser at 1478 and 1503 nm is originally demonstrated based on simultaneous excitations of the cascaded 267-cm−1 mode and the 694-cm−1 shift in the KTP crystal.
This paper describes an industrial robot joint offset calibration method called the virtual line-based single-point constraint approach. Previous methods such as using CMM, laser trackers or cameras are limited by the cost or the resolution. The proposed method relies mainly upon a laser pointer attached on the end-effector and single position-sensitive detector (PSD) arbitrarily located on the workcell...
This paper presents a new and effective multisensor based control strategy for high-accuracy/precision and high-efficiency automatic robot localization and calibration. The strategy combines both coarsely visual servo and fine position-sensitive detector (PSD) servo control methods. In a large field of view, an image-based visual servo control system is developed to roughly guide the laser beam, which...
In this paper, our recently developed high precision robot localization system employing high resolution (0.5 mum) position sensitive devices (PSD) is presented. The system is comprised of a structured laser pointer system attached to the robot end-effector and a PSD fixture. It is capable of feeding back the movement information of the TCP relative to the PSD frame. This is achieved by detecting...
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