Understanding magnetic hysteresis is vitally important to the development of the science of magnetism as a whole and to the advancement of practical magnetic device applications. Magnetic Hysteresis, by acclaimed expert Edward Della Torre, presents a clear explanation of the connection between physical principles and phenomenological hysteresis. This comprehensive book offers a lucid analysis that enables the reader to save valuable time by reducing trial-and-error design. Dr. Della Torre uses physical principles to modify Preisach modeling and to describe the complex behavior of magnetic media. While Pretsach modeling is a useful mathematical tool, its congruency and deletion properties present limitations to accurate descriptions of magnetic materials. Step-by-step, this book describes the modifications that can overcome these limitations. Special attention is given to the use of feedback around a Preisach transducer to remove the congruency restriction, and to the use of accommodation and aftereffect models to remove the deletion restriction. Magnetic state selection rules are introduced to couple scalar Preisach models to form a vector model. Magnetic Hysteresis is indispensable reading for engineers, physicists, and materials scientists who want to gain a better understanding of hysteresis losses and create more energy-efficient motor designs.
Fundamentals
Conceptual Physical Science Paul G. Hewitt, John A. Suchocki, Leslie A. Hewitt. = 1.6 درجة الحرارة عندما تلمس فرنا ساخنا. تنتقل الطاقة الحرارية إلى يدك، لأن الفرن أسخن منها. ولكن عندما تلمس قطعة من الجليد فإن الطاقة الحرارية تنتقل من ...
Physics with Modern Physics for Scientists and Engineers
A 1.50 kg snowball is shot upward at an angle of 34.0 ° to the horizontal with an initial speed of 20.0 m / s . ( a ) What is its initial CLUSTERED PROBLEMS kinetic energy ? ( b ) By how much does the gravitational potential energy of ...
Wheeler J. C. and Anderson G. R. , 1980 , J. Chem . Phys . 73 , 5778 , ( 287 ) . Wheeler J. C. and Widom B. , 1970 , J. Chem . Phys . 52 , 5334 , ( 165 ) . Whitehouse J. S. , Christou N. I. , Nicholson D. and Parsonage N. G. , 1984 , J.
三线表盘的构造.图 2-5 所示为三线悬盘实验装置的构造示意图。三线悬盘是由一个匀质圆盘(悬盘)用 3 条悬线对称地悬挂在可转动的顶部圆盘下而构成。其中,上、下圆盘均处于水平,悬挂在横梁上。3 个对称分布的等长悬线的悬点位于小于圆盘周界的同心圆圆周上, ...
本书介绍了一种基于量子谐振子物理模型的新的智能优化算法——MQHOA算法,该算法的物理模型明确,算法结构简单,无需复杂的初始条件设定和参数设置 ...
本书为教材。分为数据处理基础、物理实验方法、常用实验仪器使用方法和实验项目等。数据处理基础介绍误差基本理论与处理方法;物理实验方法介绍常用的基本物理实验方法和手 ...
愛因斯坦寫給所有人的科普經典 ═════════════════ 全書沒用到任何數學公式! 介紹從伽利略、牛頓時代的古典理論 到場論、相對論和量子力學的物理學史 ...
Dielectric Physics