Showing papers in "Electronics and Power in 1965"
1,534 citations
233 citations
TL;DR: The magnetoelectric materials, as they are called, become magnetized in an electric field and electrically polarised in a magnetic field as discussed by the authors, and are used in data storage, pulse-field measurement, wave propagation and the study of magnetic crystals.
Abstract: Important applications in data storage, pulse-field measurement, wave propagation and the study of magnetic crystals are likely to be found for a recently reported class of materials. These magnetoelectric materials, as they are called, become magnetised in an electric field and electrically polarised in a magnetic field.
55 citations
TL;DR: If a 90%-efficient machine is in fact two frame sizes larger than an equivalent 85%-efficient one, which is 'best' from the user's point of view?
Abstract: If a 90%-efficient machine is in fact two frame sizes larger than an equivalent 85%-efficient one, which is 'best' from the user's point of view? Prof. Laithwaite suggests that the time has come to establish other criteria.
24 citations
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TL;DR: In this paper, the authors discuss the reasons for establishing the Servo Panel, the men responsible for them, and a very successful co-operative operation in which several Government departments, the Armed Services, several universities and important sectors of British industry collaborated.
Abstract: It is a truism that, throughout history, wartime science and technology have been characterised by important advances of a fundamental nature. The inauguration of the new Control &. Automation Division of the IEE has recalled some of the pioneering work in servomechanism theory and design carried out during the Second World War, and in particular the unique contribution of the Ministry of Supply Servo Panel. The main objectives of this article are: first, to discuss briefly the reasons for establishing the Servo Panel, second, to list some of the wartime achievements in the servo field and the men responsible for them, and third, to place on record a very successful co-operative operation (perhaps unique in history) in which several Government departments, the Armed Services, several universities and important sectors of British industry collaborated.
TL;DR: Studies of the effects of fatal electric shock have recently challenged certain almost traditional beliefs and it is important that electrical engineeres should be aware of this new knowledge, and how it has led to a revision of the methods of giving first-aid treatment to accident victims.
Abstract: Studies of the effects of fatal electric shock have recently challenged certain almost traditional beliefs. It is important that electrical engineeres should be aware of this new knowledge, and how it has led to a revision of the methods of giving first-aid treatment to accident victims.
TL;DR: Given adequate design and development facilities, the reluctance machine could prove superior, in some respects, to the induction motor and would certainly be capable of fulfilling a wide variety of increasingly important functions more successfully and more cheaply than any other device.
Abstract: Given adequate design and development facilities, the reluctance machine could prove superior, in some respects, to the induction motor and would certainly be capable of fulfilling a wide variety of increasingly important functions more successfully and more cheaply than any other device.
TL;DR: A survey of the accelerometer field can be found in this paper, where the basic theory on which the instruments are based, and explains the different categories into which they are divided.
Abstract: Increased interest in accelerometers has been one of the by-products of inertial-guidance studies. This survey of the accelerometer field sketches the basic theory on which the instruments are based, and explains the different categories into which they are divided.
TL;DR: In this paper, planning engineers are seeking to control the domestic demand for electricity in such a way that the creation of peak conditions, calling for massive reinforcement of generating plant, can be avoided.
Abstract: Planning engineers are seeking to control the domestic demand for electricity in such a way that the creation of peak conditions, calling for massive reinforcement of generating plant, can be avoided.
TL;DR: In this paper, the characteristics of buildings and heating systems affecting the design and selection of automatic controls are discussed, and the principal elements of control systems are described, particular attention being devoted to improvements considered necessary to overcome difficulties in application.
Abstract: Postwar developments in building have increased the importance of automatic controls for heating and air-conditioning installations because of the demand for comfortable environmental conditions and the large potential saving of fuel obtainable with appropriate controls. The reasons why the actual performance of heating controls is often unsatisfactory are considered.The characteristics of buildings and heating systems affecting the design and selection of automatic controls are discussed, and the principal elements of control systems are described, particular attention being devoted to improvements considered necessary to overcome difficulties in application.The application of these elements to typical systems of electrical heating, conventional central heating and air conditioning is then considered, and the paper concludes by discussing the problems of installation and maintenance and demonstrates how these can be alleviated by suitable design procedures.
TL;DR: In this article, the authors carried out tests on a 5-span section of 132-kV line to determine the jump height of the conductors after the release of simulated ice loads, and found that ice loads in excess of 1 lb/ft were sufficient to reduce the ground clearance of the lowest conductor below a safe level.
Abstract: The authors have carried out tests on a 5-span section of 132-kV line to determine the jump height of the conductors after the release of simulated ice loads. They found that ice loads in excess of 1 lb/ft were sufficient to reduce the ground clearance of the lowest conductor below a safe level.
TL;DR: There are, however, many uses for sonar in non-military fields such as fisheries research and operation, hydrographic surveying and geophysical and oceanographic research as mentioned in this paper.
Abstract: Most people think of sonar, or asdic as it has traditionally been called in Britain, only in its wartime antisubmarine role. There are, however, many uses for sonar in non-military fields such as fisheries research and operation, hydrographic surveying and geophysical and oceanographic research.
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TL;DR: The mission of the Ranger project as discussed by the authors was to obtain high-resolution pictures of the surface of the Moon to support the Apollo manned lunar-landing program and for use by the scientific community It was carried out by the Ranger tv system, which was able to obtain lunar pictures with a definition at least 1,000 times better than those obtained with Earth-based telescopes.
Abstract: The mission of the Ranger project was to obtain high-resolution pictures of the surface of the Moon to support the Apollo manned lunar-landing programme and for use by the scientific community It was carried out by the Ranger tv system, which was able to obtain lunar pictures with a definition at least 1,000 times better than those obtained with Earth-based telescopes Rangers VII, VIII, and IX took over 16,000 high-resolution pictures of the Moon - perhaps the greatest advance in lunar exploration since the invention of the telescope
TL;DR: So extensive is the use of storage batteries, that the capacity of those mounted in motor vehicles in Britain alone exceeds the present total output from nuclear power stations as mentioned in this paper, however, the employment of these batteries is limited, however, by their weight and size and by the time that must be spent in recharging.
Abstract: So extensive is the use of storage batteries, that the capacity of those mounted in motor vehicles in Britain alone exceeds the present total output from nuclear power stations. The employment of these batteries is limited, however, by their weight and size and by the time that must be spent in recharging. Development of fuel cells, which do not suffer from these limitations, may lead to the practicability of high-performance electric cars.
TL;DR: In this article, the authors consider the need for electrical supply for all purposeful objects moving in 3D space, and the system chosen has to survive particularly hostile environments in every case.
Abstract: All purposeful objects moving in three dimensions have similar requirements, although not all have to be met in every case. One requirement is electrical supply - essential in all but totally inactive satellites - and the system chosen has to survive particularly hostile environments.
TL;DR: In this paper, an enormous repertoire of effects is now available to the producer through the comparatively new techniques of radiophonics, not only for science-fiction but for many other types of sound and vision broadcasting.
Abstract: Not only for science-fiction but for many other types of sound and vision broadcasting, an enormous repertoire of effects is now available to the producer through the comparatively new techniques of radiophonics.
TL;DR: The application of technology to the structure of the modern world increasingly depends on Government direction and aid as mentioned in this paper, and it is worth noting that the 11th Graham Clark lecture argued that society should be reoriented to regard innovation as innocent until proved guilty.
Abstract: The application of technology to the structure of the modern world increasingly depends on Government direction and aid. In the 11th Graham Clark lecture, Mr. Duckworth argued that society should be reoriented to regard innovation as innocent until proved guilty. A technique must then be found for assessing priorities.