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Electrical Engineers - Part IIA: Automatic Regulators and Servo Mechanisms, Journal of the Institution of

Issue 2 • Date May 1947

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Displaying Results 1 - 17 of 17
  • Elements of position control

    Publication Year: 1947 , Page(s): 161 - 176
    Save to Project icon | Click to expandAbstract | PDF file iconPDF (2529 KB)  

    The paper offers a general descriptive survey of position control, including the characteristics of the usual input signal and load and their effects on performance. The basic principles of automatic control are applied to unmonitored and monitored position-control systems. Displacement-displacement servo systems are dealt with in some detail, the emphasis being on electric-non-thermionic amplifie... View full abstract»

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  • The use of servos in the Army during the past war

    Publication Year: 1947 , Page(s): 177 - 189
    Save to Project icon | Click to expandAbstract | PDF file iconPDF (1834 KB)  

    The paper reviews the principal applications of servo mechanisms to Army weapons during the past war, giving in each case a general description of the particular system employed, and outlining the main historical and design factors governing its adoption. Features of design of special interest are noted. It is not claimed that the number of examples given is exhaustive, but it is representative of... View full abstract»

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  • The nature of the operator's response in manual control, and its implications for controller design

    Publication Year: 1947 , Page(s): 190 - 206
    Cited by:  Papers (2)
    Save to Project icon | Click to expandAbstract | PDF file iconPDF (1827 KB)  

    This paper gives a brief account of a series of measurements of the movement of the controller handle and of the error of aim under conditions simulating the laying of a gun on a moving target by manually-controlled power operation. The results are analysed with the object of obtaining the ¿ operator's response, ¿ i.e. the relationship between the movement made by the operator's hand and the err... View full abstract»

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  • Discussion on ¿Applications in the military sphere¿ at the Convention on Automatic Regulators and Servo Mechanisms, 20th May, 1947

    Publication Year: 1947 , Page(s): 203 - 206
    Save to Project icon | PDF file iconPDF (911 KB)  
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  • The authors' replies to the discussion on ¿Applications in the military sphere¿

    Publication Year: 1947 , Page(s): 206 - 207
    Save to Project icon | PDF file iconPDF (343 KB)  
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  • Some servo mechanisms used by the Royal Navy

    Publication Year: 1947 , Page(s): 208 - 221
    Save to Project icon | Click to expandAbstract | PDF file iconPDF (1703 KB)  

    In naval gunnery, especially in anti-aircraft systems, it is necessary 1br the gun to be kept continuously laid upon the target, regardless of the ships movements, with a high degree of accuracy. The paper discusses the implications of this requirement in terms of the angular movements to be imparted to a normal 2-axis gun, and shows the necessity for complete automatic power operation of the gun ... View full abstract»

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  • Data-transmission systems

    Publication Year: 1947 , Page(s): 222 - 235
    Save to Project icon | Click to expandAbstract | PDF file iconPDF (2097 KB)  

    The paper deals with the methods employed for the transmission of data which have been used in the Fighting Services up to the present day. An historical review is made of the main types of instruments used over the last 40 years, particularly for Naval purposes. The development of the present types of data transmission¿in particular the magslip¿is dealt with more fully, and references are made ... View full abstract»

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  • Naval applications of electrical remote-positional controllers

    Publication Year: 1947 , Page(s): 236 - 254
    Save to Project icon | Click to expandAbstract | PDF file iconPDF (2194 KB)  

    A survey is made in this paper of some of the applications in the Royal Navy of all-electric servo mechanisms for armament control purposes. The need for the greatest possible measure of automatic operation in fire-control prediction, and in the pointing of the guns in accordance with this prediction, in order to combat high-speed aircraft and to make the fullest possible use of the continuously u... View full abstract»

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  • Discussion on ¿Some naval applications¿ at the Convention on Automatic Regulators and Servo Mechanisms, 20th May, 1947

    Publication Year: 1947 , Page(s): 251 - 254
    Save to Project icon | PDF file iconPDF (910 KB)  
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  • The authors' replies to the discussion on ¿Some naval applications¿

    Publication Year: 1947 , Page(s): 254 - 255
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  • The use of servo mechanisms in aircraft

    Publication Year: 1947 , Page(s): 256 - 265
    Save to Project icon | Click to expandAbstract | PDF file iconPDF (1763 KB)  

    In each field in which servo mechanisms have been applied in aircraft, different designers have used different mechanisms to achieve the same result, and each particular type of mechanism has been used for different applications. Therefore, this survey can show no more than a few cross-sections. Section 1 gives a brief account of the conditions which a servo system will encounter in the air; Secti... View full abstract»

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  • Discussion on ¿The aeronautical aspect¿ at the Convention on Automatic Regulators and Servo Mechanisms, 21st May, 1947

    Publication Year: 1947 , Page(s): 266 - 268
    Save to Project icon | PDF file iconPDF (594 KB)  
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  • The author's reply to the discussion on ¿The aeronautical aspect¿

    Publication Year: 1947 , Page(s): 268 - 269
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  • Hydraulic remote position-controllers

    Publication Year: 1947 , Page(s): 270 - 282
    Save to Project icon | Click to expandAbstract | PDF file iconPDF (1622 KB)  

    Brief descriptions arc given of the significant characteristics of the more important hydraulic devices used in remote position-controllers. Such devices include valves, dashpots, pumps, approximately constantpressure sources and hydraulic motors. Combinations of these primary devices are then described which, for analytical purposes, may be regarded as single ¿elements¿ in the control sequence ... View full abstract»

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  • Electrical remote position-indicating systems as applied to aircraft

    Publication Year: 1947 , Page(s): 283 - 291
    Save to Project icon | Click to expandAbstract | PDF file iconPDF (1317 KB)  

    Electrical remote position-indicating systems are usefully and extensively applied to modern aircraft. To meet rigorous aircraft requirements, existing systems, as applied to other branches of engineering, have been developed and new systems devised. Existing literature on the subject as a whole is dispersed; the paper therefore serves to collate the existing information. The principles of operati... View full abstract»

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  • Methods of testing small servo mechanisms and data-transmission systems

    Publication Year: 1947 , Page(s): 292 - 297
    Save to Project icon | Click to expandAbstract | PDF file iconPDF (824 KB)  

    The testing of small servo mechanisms and data-transmission systems requires the design of equipment for applying input signals of varying types and for measuring the resulting response at the output shaft. The mechanisms to be tested were all of a type in which a relatively small power was available, and the testing equipment described was specially designed to ensure observations of great accura... View full abstract»

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  • Some characteristics of a human operator

    Publication Year: 1947 , Page(s): 298 - 304
    Cited by:  Papers (2)
    Save to Project icon | Click to expandAbstract | PDF file iconPDF (1198 KB)  

    The paper discusses experimental findings which aid an understanding of the basic limitations of a human operator as an element in a servo system. It is shown how experiments on threshold effects can guide the choice of both display magnification and gear ratio. At least 2 sec appears to be required to develop the maximum perceptual acuity, but a time greater than this is usually needed in accurat... View full abstract»

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Aims & Scope

The Journal of the Institution of Electrical Engineers - Part IIA: Automatic Regulators and Servo Mechanisms was published by the IET in 1947.

Full Aims & Scope