{"title":"Switching-Type Servosystems in an Elementary Undergraduate Curriculum","authors":"Z. Meiksin","doi":"10.1109/TE.1962.4322230","DOIUrl":"https://doi.org/10.1109/TE.1962.4322230","url":null,"abstract":"The paper discusses how the concept of switchingtype servosystems can be introduced into an undergraduate curriculum without requiring a more advanced background in mathematics on the part of the student than is ordinarily expected. A differential equation approach is used to study the response of a second-order system which is excited with a step function input. The system starts to respond in a linear mode of operation with an over-all positive feedback and switches into a different linear mode with an over-all negative feedback at a predetermined instant. The system is designed so as to respond with no overshoot. The response time is shorter than that of a conventional critically-damped linear negative feedback system with the same major physical components. The results of a rigorous study by means of a phase-space representation are also given.","PeriodicalId":175003,"journal":{"name":"Ire Transactions on Education","volume":"32 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1962-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115059304","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"A New Approach to Fourier Coefficient Evaluation","authors":"C. Chen","doi":"10.1109/TE.1962.4322233","DOIUrl":"https://doi.org/10.1109/TE.1962.4322233","url":null,"abstract":"A new method for determining the coefficients of the Fourier series is given. This method is developed by considering each sample as a vector. The two coefficients an and bn are obtained simultaneously. Compared with the present techniques, this method is much simpler and more accurate. Illustrative examples are included.","PeriodicalId":175003,"journal":{"name":"Ire Transactions on Education","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1962-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125040850","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Evolution of Graduate Education in Electrical Engineering in Metropolitan Areas","authors":"A. B. Giordano","doi":"10.1109/TE.1962.4322235","DOIUrl":"https://doi.org/10.1109/TE.1962.4322235","url":null,"abstract":"The evolution of graduate education in electrical engineering began in the early 1890' s and progressed at a rapid pace in the 1920' s, particularly in metropolitan areas conscious of community needs. In these areas, evening programs held the spotlight because of the ever-demanding need to provide graduate engineers with advanced knowledge. Such cooperation between community interests and colleges has resulted in a wide variety of patterns of part-time study on campus and, more recently, off campus. The later development is viewed with criticism in several educational circles although off-campus programs are filling tremendous requirements arising from industrial concentrations not within easy reach of a university or college. The evolution seems to indicate that off campus programs are not a passing fancy and that such requirements are very likely to be best satisfied in the long run by the establishment of graduate centers with a faculty in residence. As an example, the Polytechnic Graduate Center on Long Island is described. (The Center, actually located in Farmingdale, N. Y., began its operation on September 25, 1961, with a graduate student body of nearly 700 in day and evening programs involving advanced courses in Aerospace Engineering, Electrical Engineering, Electrophysics, Mathematics, Mechanical Engineering, Physics, and Industrial Management. Close to 150 part-time day students are attending on a released-time basis, in addition to 45 full-time students in residence.)","PeriodicalId":175003,"journal":{"name":"Ire Transactions on Education","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1962-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129829837","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Panel discussion on graduate electrical engineering education: Introduction","authors":"R. L. Mcfarlan","doi":"10.1109/TE.1962.4322236","DOIUrl":"https://doi.org/10.1109/TE.1962.4322236","url":null,"abstract":"","PeriodicalId":175003,"journal":{"name":"Ire Transactions on Education","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1962-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122610034","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Future Trends and Problems in Graduate Electrical Engineering Education","authors":"E. Weber","doi":"10.1109/TE.1962.4322239","DOIUrl":"https://doi.org/10.1109/TE.1962.4322239","url":null,"abstract":"","PeriodicalId":175003,"journal":{"name":"Ire Transactions on Education","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1962-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117068071","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"A Unified Procedure for Deriving the Differential Equations of Electrical and Mechanical Systems","authors":"G. Ogar, J. D'Azzo","doi":"10.1109/TE.1962.4322232","DOIUrl":"https://doi.org/10.1109/TE.1962.4322232","url":null,"abstract":"Based on energy considerations, it is possible to obtain the differential equations of motion of any physical system. A statement of equilibrium involving operations on energy functions is the Lagrange equation d / OT a7' D aOV dt (aq,) -aq aq + aq. Providing that the kinetic energy T, potential energy V, and dissipation function D can be written, the differential equations of the system are obtained by following a straightforward systematic procedure. It is not necessary to employ Kirchhoff's laws or Newton's force law to obtain the equations of electrical and mechanical systems. Rather, the two kinds of systems fall within the scope of this general method. The energy method is particularly useful in dealing with electromechanical systems and with mechanical systems that combine rotation and translation. Nonlinear as well as linear systems can be handled with equal ease. Versatility of the method is shown by its application to various examples, chosen in more or less increasing order of complexity. A set of tables is provided, listing the energy functions for each basic type of electrical, mechanical and electromechanical element. Those charged with teaching students the different disciplines of dynamics and electric circuits should find herein a common meeting ground wherein one general method suffices to yield the necessary differential equations.","PeriodicalId":175003,"journal":{"name":"Ire Transactions on Education","volume":"28 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1962-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130475108","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"A PCM Experiment for the Senior Electronic Laboratory","authors":"R. Mackey","doi":"10.1109/TE.1962.4322227","DOIUrl":"https://doi.org/10.1109/TE.1962.4322227","url":null,"abstract":"An experiment on pulse-code modulation designed for the senior-year electronics student is described. PCM is pedagogically desirable for its embodiment of a wide variety of pulse and digital techniques. The experiment draws upon the component-type experiences typical of undergraduate courses and integrates them into a complex system study. Emphasis is on functional interaction rather than on how a particular circuit accomplishes its function. Sixteen level quantization is used with provision for injection of noise and variation of system parameters.","PeriodicalId":175003,"journal":{"name":"Ire Transactions on Education","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1962-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114822112","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Summary of Education Session AIEE 1961 Winter Meeting","authors":"K. B. Mceachron","doi":"10.1109/TE.1962.4322240","DOIUrl":"https://doi.org/10.1109/TE.1962.4322240","url":null,"abstract":"","PeriodicalId":175003,"journal":{"name":"Ire Transactions on Education","volume":"78 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1962-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114869021","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Control System Digital Computer Transfer Function Simulation","authors":"J. J. Jonsson","doi":"10.1109/TE.1962.4322231","DOIUrl":"https://doi.org/10.1109/TE.1962.4322231","url":null,"abstract":"The z transform of simple delay, integrator, leadlag, and differentiator networks are suggested as the basic building blocks for simulating complex control systems on a digital computer. The system parameters retain their explicit identity, thus facilitating analysis and design of the system as a function of specific parameter changes.","PeriodicalId":175003,"journal":{"name":"Ire Transactions on Education","volume":"49 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1962-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131674911","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"An Instructional Servomechanisms Laboratory","authors":"J. R. Ward","doi":"10.1109/TE.1962.4322228","DOIUrl":"https://doi.org/10.1109/TE.1962.4322228","url":null,"abstract":"This article describes a laboratory servomechanism and an associated laboratory sequence which were designed to complement theoretical first courses in servomechanisms at either senior-year undergraduate or first-year graduate level. The primary aims were to provide the student with the means for an experimental verification of theoretical results and, at the same time, to encourage him to establish some feeling for the physical reality of an operating feedback system.","PeriodicalId":175003,"journal":{"name":"Ire Transactions on Education","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1962-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114684340","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}