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This paper describes a novel legged capsule robot, which is actuated by magnetic torque, that can move through the intestinal lumen, especially in the small intestine. The proposed capsule robot has four legs and is actuated by magnetic torque without the need for an embedded power supply such as a battery. The principle of magnetic actuation is based on a magnet configuration of an internal permanent...
This paper presents an accelerated life testing method to solve the problem of in-pipe robot reliability in quantitative analysis. By established inverse power law probability density function model based on Weibull distribution, the results of accelerated life testing can be used to extrapolate reliability features of in-pipe robot under the normal condition, especially for single or rare prototype...
In this paper, two high-accuracy low-cost current balancing circuits are proposed for LED backlight system by using capacitors and mini transformers. Compared with traditional active and passive balancing approaches, the proposed schemes greatly reduce cost and power losses, and achieve highly accurate current matching among all LED strings in wide dimming ranges. The current balancing principles...
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