SENSORS: The PX309 Series pressure transducers from OMEGA employ the latest aerospace silicon technology and offer a choice of absolute pressures from 5 to 300 psi, gage pressures from 1 to 10,000 psi and three output ranges, 0 to 100 mV, 0 to 5V dc and 4 to 20 mA, which makes them compatible with most process-control equipment. All stainless-steel construction provides the durability needed for industrial applications. The transducers use the latest semiconductor sensor technology. Pressure ranges 50 psi and below plus all absolute pressure ranges use a high stability semiconductor pressure sensor isolated via a fluid-filled, stainless-steel diaphragm system. Pressure ranges 100 psi and above use high-accuracy silicon strain gages molecularly bonded to a stainless-steel diaphragm. Both systems provide a rugged sensor with high accuracy and excellent long-term stability. Three connection styles are available: 1.5 m (5 ft) cable, mini DIN (mating connector included) and military-style twist-lock. All models are RoHS and CE compliant. Prices start at $175.
During a teardown of the iPad Air and Microsoft Surface Pro 3 at the Medical Design & Manufacturing Show in Schaumburg, Ill., an engineer showed this "inflammatory" video about the dangers of maliciously mishandling lithium-ion batteries.
Science fiction author Isaac Asimov may have the best rules for effective brainstorming and creativity. His never-before-published essay, "On Creativity," recently made it to the Web pages of MIT Technology Review.
Much has been made over the potentially dangerous flammability of lithium-ion batteries after major companies like Boeing, Sony, and Tesla have grappled with well-publicized battery fires. Researchers at Stanford University may have come up with a solution to this problem with a smart sensor for lithium-ion batteries that provides a warning if the battery is about to overheat or catch fire.
In this new Design News feature, "How it Works," we’re starting off by examining the inner workings of the electronic cigarette. While e-cigarettes seemed like a gimmick just two or three years ago, they’re catching fire -- so to speak. Sales topped $1 billion last year and are set to hit $10 billion by 2017. Cigarette companies are fighting back by buying up e-cigarette manufacturers.
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.