Understanding Motor Controls

Understanding Motor Controls

Designed for students with no previous experience in motor controls, Herman's UNDERSTANDING MOTOR CONTROLS, 4E introduces basic principles and guides readers from learning about common motor control components to understanding how to use components in motor control circuits. Numerous up-to-date illustrations depict troubleshooting circuits while thorough explanations detail basic types of meters and test equipment to troubleshoot control circuits. An updated chapter on installing motors corresponds with the National Electrical Code and clearly illustrates how to select overload heater sizes. Using actual motor control components, hands-on laboratory experiments enable students to practice the concepts they've learned. These student-friendly experiments start with simple circuits before advancing to more complicated circuits involving timing relays and auto-transformer starters.

Understanding Motor Controls

Understanding Motor Unit and Muscle Alterations for Neurologic Rehabilitation

Neurological injuries (such as hemispheric stroke and spinal cord injury, etc.) can result in muscle weakness and spasticity. The affected muscles often experience progressive changes in their intrinsic mechanical properties, giving rise to muscle contracture and associated alterations in muscle internal structural changes. The mechanisms behind the changes are multifactorial, including disuse, autonomic changes, peripheral neuropathy, a loss of central motor neuron trophic influences, and/or their combinations. Regardless of the origins of weakness and other changes, it is very important to understand or quantify complex neuromuscular changes after a neurological injury.