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  • Upping the efficiency of pumps and fans
    Variable-speed drives gain favor as a way to minimize energy costs. Variable-frequency drives, such as Rockwell Automation's PowerFlex units, save energy by controlling motor speed to match flow with demand. Power requirements for outlet-damper systems gradually decrease with flow
  • Guidelines for sizing servohydraulics
    simulations demonstrate relatively stable pressures for the larger cylinder. Typical Bode plots show amplitude response and phase lag of the spool as a function of control-signal frequency. The graph shows operating characteristics of various valves. Linear valves with servo-quality spools provide flow
  • Bulk Density of Powders Made Easy
    with other users for data analysis. The easy to use Comparison feature of the software allows for up to eight samples to be compared. Thus, if a control sample has been defined, subsequent samples can be pulled up and compared to the control. The corresponding flow function graphs for the bulk density
  • Dc motor impersonators
    flow through the stator at low frequencies. The V/Hz Profile tracks the proper stator voltage for any given input frequency. This block diagram shows the basic I/O structure between the major elements of a field-oriented control system. The microcontroller or digital-signal controller controls
  • Getting to the Root of the Viscosity Problem (.pdf)
    Food companies know that customers count on predictable consistency. Many of the new formulations for sauces, dressings, and fillings try to provide fat-free or egg-free products that pour and taste the same as the original versions. The only way to test and ensure one-for-one flow behavior

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