The test engineers from the Swiss company SGS Electrical and Electronics are working on an unusual test subject: a cockpit simulator of a Eurofighter jet aircraft. The simulator was built by Reiser Systemtechnik, and just like any other electrical and electronic product, must keep within the limit values of harmonized EMC standards and show satisfactory immunity to … [Read more...]
Voltage Sag Testing for Industrial Equipment—and a New Power Quality Measurement Technology
Andreas Eberhard Vice President Power Standards Lab Immunity from voltage sags is vital for reliable operation of our ever-more-sophisticated electronic controls and equipment. Every electrical product should be able to ride through typical voltage sags, but in many cases the first sag test occurs after equipment is installed and in operation. Select the appropriate sag … [Read more...]
IEC Releases New EMC Immunity Test Standard
The International Electrotechnical Commission (IEC) recently released the edition 1.1 of the IEC 61000-4-34 standard titled “Electromagnetic compatibility (EMC) - Part 4-34: Testing and measurement techniques - Voltage dips, short interruptions and voltage variations immunity tests for equipment with mains current more than 16 A per phase.”IEC 61000-4-34:2005+A1:2009 defines … [Read more...]
Low EMI Converter Transformers Approved for Use with Transceivers
Murata Power Solutions has introduced a new series of converter transformers specifically designed for use with Analog Devices’ ADM2482/7 transceiver chipsets used to provide isolated RS-485 and RS-422 interfaces. The 782482 series has carefully controlled turns ratios to ensure consistent performance while a toroidal construction helps minimize electromagnetic interference … [Read more...]
Korea to Install Wireless Subway Video Surveillance System
Hoping to avoid another tragedy like the 2003 fire that killed 198 people in the Daegu, Korea subway, the Seoul Metropolitan Rapid Transit Corporation (SMRT) has chosen to deploy Firetide Inc.’s wireless infrastructure mesh solution in Seoul’s subway system. In compliance with South Korea’s subway and train radiofrequency regulations to avoid interference from other wireless … [Read more...]
Latest Study: Cell Phones, Brain Tumors Unrelated
A new Scandinavian study says there doesn’t appear to be a link between heavy cell phone use and cancer in adults. The researchers found that there was “no change” in the incidence of cancer rates between 1998 and 2003, compared with the previous two decades.Learn more from the U.S. Department of Health and Human Services. … [Read more...]
RF Interference from Holiday Lights
Warning readers that some Christmas tree lights generate RF interference, the British Web site ISP Review suggests that tree lights and wiring be kept well away from telephone cables.Read more at the ISP Review Web site. … [Read more...]
Electromagnetic Fields Used as Cutting Tools
A partnership between companies like Volkswagen researchers at the Fraunhofer Institute for Machine Tools and Forming Technology IWU in Chemnitz, Germany, have come up with a way to make holes in press-hardened steel bodywork using electromagnetic pulse technology. Dr. Verena Kräusel, head of department at the IWU said this method was previously used to expand or neck aluminum … [Read more...]
RF Parametric Test Solution for Wireless Subsystems
Aeroflex has announced the launch of the 7000 Series Vector Analyzer Generator, a single, fully integrated RF parametric test system for RF test of wireless components and subsystems. The 7000 Series combines both vector signal generation andvector signal analysis in a single box, providing an integrated approach tomeasurements for complex wireless standards, including … [Read more...]
New Switch Distribution Solutions for Surveillance Antenna Systems
Giga‐tronics recently added new switching systems specifically designed for low loss and high isolation of RF signals in multiple antenna surveillance systems, where many antennas need to be switched to multiple receivers. The Giga‐tronics surveillance antenna distribution system switching solutions are non‐blocking, and provide a true N x N system, where any antenna can be … [Read more...]
- « Previous Page
- 1
- …
- 466
- 467
- 468
- 469
- 470
- …
- 614
- Next Page »