In order to deal with the field metrology, this paper proposed an information management system which contains daily work management section, human resource section, data management section, auto-reminding section and portable device. It combines the human resource management, equipment management, data processing and filed detection and embodies them in one system located in office and the other one in field. As an information system, it ensures the security and reliability of detection data.
In order to satisfy different field requirement of product transmission during the process of its making and storing, this paper offered a brand new modular 3-D ribbon conveyer. Compared with traditional ribbon conveyer, it has some excellent properties like modular design, adjustable transmission path, and independent driving. As a result, it can change its transmission path in 3-D space and convey product to the prescribed location.
Cone-like pipes are serving in some special area, not common but always pivotal. In order to extend the ultrasonic guided wave detection technique from hollow cylinder to hollow cone, this paper make numeric analysis on both of them. Firstly, some basic theory about the guided waves and related simulation method were introduced. Secondly, a standard hollow cylinder was selected and made simulation for proving the validity and obtaining a group of pre-set parameters for following cone simulation. After that, the simulation about the hollow cone was made and its results were presented. At last, some conclusions were found by comparing the results of two different simulations. The guided waves propagating in hollow cone exhibit a slower velocity, a quicker dispersion ration and a more noisy background.
Millions of miles of pipeline are carrying fluent energy for our daily life, including water, natural gas, crude oil and nuclear materials. Micro in-pipe robot offers an effective technical method for pipe inspection and maintenance. A new bidirectional telescopic in-pipe robot was presented in this paper. In the first place, the whole structure of the in-pipe robot was described, illustrating its functions of motion principle and telescopic mechanisms, respectively. Then the inverting discipline and the driving force of mechanisms were analyzed in detail. The supporting lead screw nut was selected according to robots characteristic requirements, and its structural stability requirements were met after a series of verification. In the end, the buffer spring that satisfied with the restriction analysis was successfully designed.
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