Scientists propose efficient kinematic calibration method for articulated robots

Articulated robots are widely used in various industries for their flexibility and versatility. However, accurate kinematic calibration is essential for their precise operation. A team of scientists has proposed an efficient method for kinematic calibration of articulated robots.

The problem with traditional calibration methods

Traditional calibration methods for articulated robots involve measuring the position and orientation of the robot's end-effector and comparing it with the desired position and orientation. However, this method is time-consuming and requires a lot of effort. Moreover, it does not take into account the errors in the robot's joints, which can affect its accuracy.

The proposed method

The proposed method involves using a laser tracker to measure the position and orientation of the robot's joints. The laser tracker is a highly accurate device that can measure the position and orientation of objects in 3D space. By measuring the position and orientation of the robot's joints, the scientists can calculate the errors in the robot's kinematic model.

The scientists then use an optimization algorithm to minimize the errors in the kinematic model. The optimization algorithm adjusts the parameters of the kinematic model to minimize the difference between the measured and calculated positions and orientations of the robot's joints.

The benefits of the proposed method

The proposed method is much faster and more efficient than traditional calibration methods. It takes only a few hours to calibrate an articulated robot using this method, compared to several days using traditional methods. Moreover, the proposed method takes into account the errors in the robot's joints, which makes it more accurate.

Conclusion

The proposed method for kinematic calibration of articulated robots is a significant improvement over traditional methods. It is faster, more efficient, and more accurate. This method can help improve the performance of articulated robots in various industries, from manufacturing to healthcare.

https://www.lifetechnology.com/blogs/life-technology-technology-news/scientists-propose-efficient-kinematic-calibration-method-for-articulated-robots

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