This collection of literature attempts to compile many of the classic works that have stood the test of time and offer them at a reduced, affordable price, in an attractive volume so that everyone can enjoy them.
One hears of people whose hair turned white in a single night. Last night I thought mine was turning. I had a creepy feeling in the roots, which seemed to crawl all the way down inside each separate hair, wriggling as it went. I suppose you couldn't have nervous prostration of the hair? I worried dreadfully, it kept on so long; and my hair is so fair it would be almost a temptation for it, in an emergency, to take the one short step from gold to silver. I didn't dare switch on the light in the wagon-lit and peep at my pocket-book mirror (which reflects one's features in sections of a square inch, giving the survey of one's whole face quite a panorama effect) for fear I might wake up the Bull Dog.
Drawing on over 20 years of experience as an instructor and developer of technical support and training materials for major drives manufacturers, the author of this practical reference introduces engineering concepts of motors and drives in a way that can be easily understood by both engineers unfamiliar with the technology, and technicians who are technically literate but not accustomed to complex theory and mathematics. It features simple explanations, summaries, review questions, glossaries, and reference tables for formulas and conversions. The text begins with an explanation of the principles of DC and variable frequency AC drive technology. It provides an overview of drive components and types of drives, with special emphasis given to common motion control applications for each. The text goes on to cover DC and AC motor and drive operation, step motors, AC vector motors, brushless servo motors, linear stepper and linear servo motors, drive innovations such as vector drives, PWM stepper, and servo drives. Feedback devices such as tachometers, resolvers, and encoders are also addressed as they relate to speed and torque control. Later chapters cover drive systems control methods and the maintenance and troubleshooting of drive systems. Design engineers, automation and control specialists, maintenance technicians, and students will find this to be an invaluable resource, both as a tutorial and a desk reference.
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