Bird-Doggin' the Internet
Annual Sanity Check


Departments

Editorial

Technology Spotlight

Engineer's Toolbox

ROM Report

Product News

Free Literature

New Developments


Product Spotlights

Materials
Plastics

Mechanical
Enclosures & Fixtures

Electrical/Electronics
Boards & Components

Fluid Power
Pneumatic Components

GroupImage

tspotBesides having the first cloned mammal, scientists in Scotland are riding on the forward edge of optoelectronic technology. The fast-growing market of digital cameras has inspired one company, Vision Group, Edinburgh University, UK, to develop a single microchip that handles both image sensing and processing. Unlike most imaging products that use charged-coupled devices requiring one or more support chips, cameras incorporating Vision's complementary metal-oxide-on-silicon semiconductors use just the one chip, reducing size, power consumption and cost. Exposure control, timing logic and image conversion from analog to digital are all functions now controlled by this component. Another company, Barr & Stroud of Glasgow, Scotland, continues their 110-year-old tradition of high-quality specialty optics manufacture with the production of a unique periscope that stays within a submarine's hull. A full suite of imaging sensors combine advanced image and signal processing to enable a sub to watch the above-surface world, while the vessel remains submerged. The optoelectronic mast, seen here, has very low acoustic, visual, thermal and radar signatures, plus a low weight. The device is operated and controlled by a remote-control console fitted with high-resolution displays, and the same technology can be retrofitted to conventional periscopes.


techsptMeanwhile, here in the colonies, one company last year bridged the gap between large-scale factory machines, such as lathes, mills, machining centers, hobs and grinders, and the PCs used by the design engineers. Rather than requiring complex firmware-based motion control hardware, OpenCNC, from Manufacturing Data Systems, Inc., Ann Arbor, MI, is a production-proven software-based CNC machine tool control, delivered on a single disc. This protocol produces a more direct path from CAD development to final product, to where the machine shop could eventually be considered an output device connected to designer's desk. A PC software-based machine shop also simplifies machine set-up, point-to-point communication and networking, and the system has greater flexibility due to the selection from the diverse pool of hardware and software. OpenCNC runs on QNX, an industry-standard real-time operating system, and it supports RS-274D standard part program ming. With OpenCNC, no proprietary hardware or motion control cards are required, allowing interchangability between machines and making maintenance easier. Thus, an engineer could work a design in their laptop while returning from a client, walk into the shop, download and start producing parts.





Originally published in the January 1998 issue of designfax.

Please Note: some pictures or diagrams are only available through the printed media.