Lab report Essay Example | Topics and Well Written Essays - 1500 words - 2

Lab report - Essay Example Further, the overall RPM range for the AC motor was approximately 1/3 that of the rpm range for the DC motor. Likewise, the AC motor was ultimately providing the power and driving the DC motor. Lastly, the AC motors in synchronous speed decrease was tangentially related to the decrease in AC motor drive frequency. The underlying goal for these experiments was to provide a deeper understanding into the ultimate effects of many of the mechanical and electrical factors that impact upon the performance of a DC motor. Furthermore, the lab itself provides for an understanding of the effects of closed loop and open loop speed control mechanisms; utilizing linear and pulsed circuitry. The underlying necessity for fixed speed motors is ultimately an issue of sensory features. For instance, a compact disc player requires an electric engine to keep a minimum basic rpm range as a means of accurately reading the CD itself and translating this information into audible sound. Accordingly, a fixed magnet motor is composed of the following core components listed below in Figure 1.0 as was noted, the passing current creates a magnetic field which in turn produces torque that drives the engine itself. This is a basic compound and construct of any electrical loader. Yet, in order to ensure that the Armature begins rotating it is necessary for the torque of the engine to overcome the mechanical load that it is faced with. Additionally, the relationship between torque and current is known as a torque constant. As the armature begins to rotate, it circumvents the magnetic field of the magnets. Accordingly, and electromotive force is required and generated in order to supply the voltage that is necessary to engage this particular operation. Lastly, it must also be understood that winding and the action of the commentator brushes requires its own level of resistance as well. The exercise attempted to