tailieunhanh - Mechatronics Dc Motor - Tachometer Closed-Loop Speed Control System

Mechatronics Dc Motor - Tachometer Closed-Loop Speed Control System | Mechatronics DC Motor Tachometer Closed-Loop Speed Control System 1. Introduction This case study is a dynamic system investigation of an important and common dynamic system closed-loop speed control of a DC motor tachometer system. The study emphasizes the two key elements in the study of system design Integration through design of mechanical engineering electronics controls and computers Balance between modeling analysis simulation and hardware implementation The case study follows the procedure outlined in Figure 1. Figure 1. Dynamic System Investigation Mechatronics DC Motor Tachometer Closed-Loop Speed Control System Kevin Craig 1 Modern multidisciplinary products and systems depend on associated control systems for their optimum functioning. Today control systems are an integral part of the overall system rather than afterthought add-ons and thus are considered from the very beginning of the design process. In order to control a dynamic system one must be able to influence the response of the system. The device that does this is the actuator. Before a specific actuator is considered one must consider which variables can be influenced. Another important consideration is which variables can physically be measured both for control purposes and for disturbance detection. The device that does this is the sensor. Considerations in actuator selection are Technology electric hydraulic pneumatic thermal other Functional Performance maximum force possible extent of the linear range maximum speed possible power efficiency Physical properties weight size strength Quality Factors reliability durability maintainability Cost expense availability facilities for testing and maintenance Considerations in sensor selection are Technology electric or magnetic mechanical electromechanical electro-optical piezoelectric Functional Performance linearity bias accuracy dynamic range noise Physical properties weight size strength Quality Factors reliability durability maintainability .