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White Paper

Torque Measurement Methods Outlining torque measurement in the following areas: calculation from electrical power; measuring reaction torque; measuring in-line torque; strain gages in torque measurement. This white paper showcases torque measurement products in action and details how measurement experts measure torque. http://link.abpi.net/l.php?20061221A13

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Vortobots

Vortex-generating microscopic robots would move in swarms. The term “vortobots” denotes proposed swimming robots that would have dimensions as small as micrometers or even nanometers and that would move in swarms through fluids by generating and exploiting vortices in a cooperative manner. Vortobots were conceived as means of exploring confined or otherwise inaccessible fluid environments: they are expected to be especially attractive for biomedical uses like examining the interiors of blood vessels.

Posted in: Mechanical Components, Briefs, TSP

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Ultrasonic/Sonic Jackhammer

Advantages include low noise, low vibration, and low average power demand. An ultrasonic/sonic jackhammer (USJ) is the latest in a series of related devices, the first of which were reported in “Ultrasonic/Sonic Drill/Corers With Integrated Sensors” (NPO-20856), NASA Tech Briefs, Vol. 25, No. 1 (January 2003), page 38. Each of these devices cuts into a brittle material by means of hammering and chiseling actions of a tool bit excited with a combination of ultrasonic and sonic vibrations. A small-scale prototype of the USJ has been demonstrated. A fully developed, full-scale version of the USJ would be used for cutting through concrete, rocks, hard asphalt, and other materials to which conventional pneumatic jackhammers are applied, but the USJ would offer several advantages over conventional pneumatic jackhammers, as discussed below.

Posted in: Mechanical Components, Briefs, TSP

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Invisible Electronics



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Technologies of the Week

Polymer coatings and films have been disclosed that are photochemically processed for producing safer paints and coatings for a wider range of applications. View this technology at: http://link.abpi.net/l.php?20070102A3

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Mine Detection



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Current Attractions

Embedded Technology magazine features board-level electronics and COTS solutions for design engineers, as well as a variety of product offerings. The January issue of Embedded Technology contains a feature story on “Sensor Interface Design Demystified.” In this article, Dr. Kevin A. Shaw, director of business at Sensor Platforms Inc. (San Jose, CA) discusses, in light of the growth of MEMS (mircoelectromechanical systems), the considerations needed to be taken in sensor interface design. The designer must take into account smaller signals and application in order to develop the proper sensor, and the pit-falls involved. This article covers some of the basics of sensor interface design and gives an overview to the challenges and trade-offs of the possible approaches.

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