Like actuation

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  • The objective of the present book, which tries to summarize in an edited format and in a fairly comprehensive manner, many of the recent technical research accomplishments in the area of Smart Actuators and Smart Sensors, is to combine researchers and scientists from different fields into a single virtual room.

    pdf0p cucdai_1 19-10-2012 39 6   Download

  • A significant and very special class of industrial drives are those that are used for position control. These drives are typically called servo drives and the intelligent control of these drives is often called motion control. Some of the application areas of servo drives are machine tool servos, robotic actuator drives, electric vehicles, computer disk drives and the like. The power level for these drives usually range below 20 to 30 kW; however, drives with slightly lower control quality usually have power levels below 50 to 60 kW.

    pdf6p daohuongthon 22-01-2010 71 14   Download

  • The cover for the opening in the valve body is the bonnet. In some designs, the body itself is split into two sections that bolt together. Like valve bodies, bonnets vary in design. Some bonnets function simply as valve covers, while others support valve internals and accessories such as the stem, disk, and actuator. The bonnet is the second principal pressure boundary of a valve. It is cast or forged of the same material as the body and is connected to the body by a threaded, bolted, or welded joint.

    pdf148p loixinloi 08-05-2013 22 2   Download

  • When the rumored discovery in the year 1861 of extensive gold placers on Salmon river was confirmed, the intelligence spread through the states like wild fire. Hundreds of men with dependent families, who had been thrown out of employment by the depressed industrial condition of the country and by the Civil War, and still others actuated by a thirst for gain, utilized their available resources in providing means for an immediate migration to the land of promise. Before midsummer they had started on the long and perilous journey.

    pdf68p nhokheo9 03-05-2013 10 1   Download


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