My husband and I are presently in the process of adopting. As part of the paper work, we had to ask our local police department for a letter to verify our good standing. While we do not have a criminal record, I was embarrassed to find out that we had about a dozen speed warnings between us. And we've only lived in this town for four years! If it wasn't bad enough that the chief of police now knows us and our record, the National Institute of Standards and Technology (NIST) has developed calibrator/simulator units that will certify the accuracy of across-the-road photo radars to plus or minus 1 mph at 65 mph. The unit picks up the radar's continuous wave signal and frequency modulates it at the Doppler rate anticipated for the moving vehicle target. Frequency modulation is achieved using a five-pole microwave switch driven by a digitally-based function generator which is programmed to simulate the Doppler return from vehicles traveling at speeds of 15 to 120 mph (25 to 200 km/h). The units can also be used to calibrate other speed-measuring radars in military and weather forecasting applications. I better get the lead out of my foot while the units are still undergoing field tests. For more information, contact Claude Weil by phone: (303) 497-5305 or e-mail: email@example.com.
This year, Design News is getting a head start on the Fourth of July celebration. In honor of our country and its legacy of engineering innovation -- in all of its forms -- we are taking you on an alphabetical tour through all 50 states to showcase interesting engineering breakthroughs and historically significant events.
Earlier this year paralyzed IndyCar drive Sam Schmidt did the seemingly impossible -- opening the qualifying rounds at Indy by driving a modified Corvette C7 Stingray around the Indianapolis Motor Speedway.
Focus on Fundamentals consists of 45-minute on-line classes that cover a host of technologies. You learn without leaving the comfort of your desk. All classes are taught by subject-matter experts and all are archived. So if you can't attend live, attend at your convenience.