IEE Colloquium on Actuator Technology: Current Practice and New Developments (Digest No: 1996/110)

10 May 1996

Filter Results

Displaying Results 1 - 10 of 10
  • The development of force actuators using ER and MR fluid technology

    Publication Year: 1996, Page(s):6/1 - 6/5
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (256 KB)

    The most serious drawback of hydraulic actuators is the relatively high cost of the valves which control fluid flow. One possible solution to this problem is to exploit so-called electro-rheological (ER) fluids whose resistance to flow can be increased significantly through the application of an electric field. The increase in flow resistance is rapid (typically measured in milliseconds) and rever... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Electrically powered actuation for civil aircraft

    Publication Year: 1996, Page(s):5/1 - 5/3
    Cited by:  Papers (4)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (176 KB)

    The concept of replacing the hydraulic system with electric actuation, coupled with changes to the electric generation technology and flight control systems, is commonly termed the all-electric-aircraft. Earlier studies have shown that the all electric aircraft can give the aircraft's manufactures and operators considerable cost benefits, particularly due to reductions in system complexity and ove... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Pneumatic muscle actuators: musculature for an anthropomorphic robot arm

    Publication Year: 1996, Page(s):8/1 - 8/6
    Cited by:  Papers (1)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (396 KB)

    This paper considers the development of a bi-muscular pneumatic muscle actuator (PMA) system, for use on a 7-DOF anthropomorphic robot arm. Initially this actuator system is put into context with regard to other pneumatic-based designs. The modelling of the PMA is then considered to show the feasibility of the system for good control. The control of the system is explored via adaptive pole-placeme... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • The PemRam-an electromagnetic linear actuator

    Publication Year: 1996, Page(s):4/1 - 4/8
    Cited by:  Papers (1)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (528 KB)

    The PemRam was originally designed to replace hydraulics in vehicle simulators. Previously, only high-pressure fluid actuators could provide the bandwidth and precision that was needed for accurate motion simulation but they could not be used in confined spaces close to the general public. Hydraulic actuators are also inefficient when they are used in simulators, so that even a small machine had t... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Actuators and their mechanisms in microengineering

    Publication Year: 1996, Page(s):7/1 - 7/3
    Cited by:  Papers (1)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (244 KB)

    The subject of actuation in microengineering is an expanding area of study. Many aspects need to be considered - the actuation mechanism, how well it scales to the micro level, the materials involved, process compatibility, reliability, and comparison with alternative techniques - are all criteria in reaching a final judgement. There are many different types of actuation mechanisms used in microen... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • IEE Colloquium on Actuator Technology: Current Practice and New Developments (Digest No.1996/110)

    Publication Year: 1996
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (44 KB)

    The following topics were dealt with: electrohydraulic actuators; electromechanical actuators; pneumatic servo actuators; PemRam electromagnetic linear actuator; civil aircraft electric actuators; electrorheological and magnetorheological force actuators; microengineering; pneumatic “muscle”; and a self-validating actuator View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • A validated actuator

    Publication Year: 1996, Page(s):9/1 - 9/5
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (272 KB)

    The concept of validation in an actuator (and also in a sensor) provides a framework within which the distribution of computing power to the level of individual process instruments can be put to use. The complexity of the overall system can be greatly reduced by allowing each instrument to carry out processing where it is most appropriate. The reliability and operation of each instrument is assess... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Electrohydraulic actuation-still in control?

    Publication Year: 1996, Page(s):1/1 - 1/4
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (328 KB)

    Electrohydraulic actuators are applied predominantly where the requirements for motion or load control involve high power combined with high accuracy and dynamic capability. Although electrohydraulic actuation is perceived as “mature”, there have been significant technological advances in recent years, ensuring that the ever increasing demands for improved control can be met. This pape... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Electromechanical actuation

    Publication Year: 1996, Page(s):2/1 - 2/3
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (244 KB)

    Linear electromechanical actuation as its name suggests utilises electrical and mechanical components to provide linear movement. This linear movement can be used as part of a process to apply a load or position and provide support for a mass. There are several parameters which the actuator may be specified to control as part of this process - position, load, linear speed, and acceleration. The co... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Pneumatic servo actuator technology

    Publication Year: 1996, Page(s):3/1 - 3/6
    Cited by:  Papers (1)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (460 KB)

    This paper briefly reviews the development of pneumatic servo mechanisms from their origins in the 1950s through to the present day. The constituent elements of representative servo pneumatic actuators are briefly described. Problems somewhat unique to pneumatic motion control are described and some techniques to overcome these limitations introduced. The emergence of digital control of pneumatic ... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.