6,883 research outputs found

    Variable ratio beam splitter for laser applications

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    Beam splitter employing birefringent optics provides either widely different or precisely equal beam ratios, it can be used with laser light source systems for interferometry of lossy media, holography, scattering measurements, and precise beam ratio applications

    The Dynamic Model of Plane Mechanism with Variable Ratio.

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    The paper contains the proposal how to reduce many–elements plane mechanism with one degree of freedom to chosen axis or line as one–element model of mechanism. Mostly the place of reduction is driving element in rotary motion (for example, shaft of electric motor) or element in linear motion (for example, piston rod of hydraulic cylinder). The way of determining reduced load and reduced mass of the model is described. Presented mathematical description let determine: firstly, required driving torque or force to provide the suitable acceleration when loads of element are known and secondly, the acceleration (angular or linear) of driving element as result of known driving torque or force and loads of element

    Analysis and design of a flat central finned-tube radiator

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    Computer program based on fixed conductance parameter yields minimum weight design. Second program employs variable conductance parameter and variable ratio of fin length to tube outside radius, and is used for radiator designs with geometric limitations. Major outputs of the two programs are given

    A proposed remote manipulator system: A concept

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    System is described with variable ratio, mixed mode, bilateral, master-slave control. Manipulator arms consist of shoulder and elbow with two degrees of freedom, a wrist with three degrees of freedom, and terminal grasping device. Feedback is provided by TV cameras attached near shoulder, grasping device, and at end of shuttle opposite arm

    Experimental multi-photon-resolving detector using a single avalanche photodiode

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    A multichannel detector has been constructed using a single avalanche photodiode and a fiber-loop delay line. Detection probabilities of the channels can be set using a variable-ratio coupler. The performance of the detector is demonstrated on its capability to distinguish multi-photon states (containing two or more photons) from the one-photon state and the vacuum state.Comment: LATEX, 11 pages, 5 PostScript figure

    Design study of a continuously variable roller cone traction CVT for electric vehicles

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    Continuously variable ratio transmissions (CVT) featuring cone and roller traction elements and computerized controls are studied. The CVT meets or exceeds all requirements set forth in the design criteria. Further, a scalability analysis indicates the basic concept is applicable to lower and higher power units, with upward scaling for increased power being more readily accomplished

    Continuously Variable Ratio Rocker Arms

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    A design for continuously variable ratio rocker arms was to be considered as a personal project for a a-series engine. It is the desire for me to design a variable lift system to be used in older pushrod engines. The purpose of this paper is to design a continuously variable valve lift that can be used with a british motor company a-series engine as for completion of ENG4111 and ENG4112 reasearch project. First current literature was conducted to find out what designs are available and how they are implenented. From this a methodology was created to generate a design for the A-series engine. Finally the results are published showing how the design was established and a material outcome is conluded. Conclusions and further work is published along with a complete set of detailed and assembly drawings
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