BUS OF THE MONTH
A servo system consists of a number of elements (see diagram). One aspect of the system integration process involves matching the servo amplifier to the brushless dc motor. This may seem as simple as selecting the amplifier and motor from the same manufacturer.
BUS OF THE MONTH: Profibus-DP
Control Engineering classic: In this article, the consequences of performing feedback control with sampled rather than continuous data are examined.
KEY WORDS Process control and instrumentation Process sensing Pressure sensing One of the most-used sensors, pressure instrumentation is found nearly everywhere now. The old process standby is still there—chemical change-of-state monitoring still requires tracking such mundane variables as pressure and temperature—but it now can be found, however tiny, in manufactured goods from au...
Düsseldorf, Germany— Interkama 2001, the International Trade Fair for Solutions for Automation in Production and Business Processes, will integrate software, communications, and information technology with its traditional process automation focus here on Sept. 24-28, according to show organizer Messe Düsseldorf GmbH.
KEY WORDSMotors, drives, & motion controlAC variable-speed drivesAC induction motorsAdaptive controlControversial right from their name, "sensorless" ac drives actually use current and voltage sensors to achieve motor control. Even beyond terminology, it's not obvious what sensorless ac drives can or can't do, and where they fit into the big picture.
Control Engineering editors— in the 14th annual process—highlighted the best products of the year, based on technological advancement, impact on the market, and service to industry.Editors selected from among thousands of products mentioned in Control Engineering and Control Engineering Online during year 2000, in nine product categories: Control components; Human-machine interface...
Hannover, Germany—Twenty-five halls will be "in play" to accommodate this year's edition of the "world's largest industrial technology trade show" on April 23-28, 2001. An extra benefit is the fairground's upgraded infrastructure, completed for Expo 2000, the World's Fair. Hannover Fair 2001 combines six "fairs" in its "Power of Industry" theme.