everywhere we turn, electric motors make modern life possible. In fact, electric motors are so relied upon that often the only time we notice them is when theydon’twork — an issue that’s highly preventable, thanks to electric motor testing. ...
For our example, the increase in the stator back iron thickness of the electric motor means the frequencies of structural modes F0 and F8 shift to the right. Comparing the resulting response shows a reduction in the resonance peak caused by the 12th harmonic by 4 decibels (dB). This is due...
Continue to next page Of course, losses have an impact on the amount of heat a motor generates. In one test conducted at the speed corresponding to maximum loss, the temperature of a conventional stepping motor rose to over 60°C in about five minutes, an operating point ...
Alternators and generators both useelectromagnetic inductionto generate power. Generators in cars and other vehicles use a pulley connected to a drive shaft such that the pulley coils wire around in a circular direction to create a magnetic field that produces a current. The coil, called anarmature...
Our homemade dc motor’s working is mainly based on the neodymium disc magnet. Neodymium magnetsare created from an alloy of neodymium, iron, and boron. Neodymium magnet has great electromagnetic fields and exceptional resistance to demagnetization compared to ceramic or temporary magnets like iron,...
Photo: The inner of a hub motor is a "brushless" motor like this made up of electromagnetic copper coils. The coils, which remain static, generate a magnetic field that makes another part of the motor (not shown here) spin around them. In other words, a hub motor is a brushless motor...
How Electromagnetic Propulsion Will Work More Great Links How to use a compass Understanding and Using a Compass Getting on Course Learning Compass and Map Basics Origin of The Earth's Magnetism Laboratory of Earth's Magnetism Share: Up Next How the Bermuda Triangle Works Explore More You May...
Section 2: SCR or triac insulated control specifies different ways to drive the AC switch implemented on the hybrid relay circuit. Section 3: EMI conducted noise management provides some design tips to pass electromagnetic compatibility standards, especially to reduce ...
Principles of Electromagnetism: The Motor Effect The principle that allows an electromagnetic crane to work is that a moving electric charge generates a magnetic field. You can demonstrate this easily with a magnet and a simple electrical circuit in this experiment from the Exploratorium. Get between...
That means the ship will need to dampen engine noise and reduce the amount of electromagnetic energy (radar and infrared, for example) that it reflects to enemy detectors. Powerful From the beginning, Navy planners envisioned the DDG 1000 as an all-electric ship to meet ever-increasing power ...