National Semiconductor Corp. recently introduced the SolarMagic™ arc detection reference design, comprised of analog front end integrated circuits (ICs) and multi-band dynamic filtering firmware, the first commercially available chipset to detect hazardous DC arc faults in photovoltaic (PV) systems.In PV systems today, intermittent connections or insulation deterioration … [Read more...]
IEC Releases EMC Filtering Devices Standard
CISPR 17:2011 specifies methods to measure the radio interference suppression characteristics of passive EMC filtering devices used in power and signal lines, and in other circuits. The defined methods may also be applied to combinations of over-voltage protection devices and EMC filtering devices. The measurement method covers the frequency range from 9 kHz to several GHz … [Read more...]
Commission Updates Rules to Protect Workers from Electromagnetic Fields
A proposal to update EU rules to protect workers from electromagnetic fields has just been put forward by the European Commission. The proposal would update the current exposure limits to incorporate new scientific evidence, particularly in relation to exposure limits of MRI in hospitals. It would also include a number of provisions to help employers carry out risk assessments … [Read more...]
European Space Agency Shuts Down Illegal Transmitters
An international effort to shut down radio signals that have occasionally been blocking the instrument on ESA’s Soil Moisture and Ocean Salinity (SMOS) water satellite is improving the quality of the mission’s data.The SMOS satellite carries a passive radiometer that operates in the 1400–1427 MHz frequency range (L-band) of the electromagnetic spectrum. It shows ‘brightness … [Read more...]
Company Delivers Heat Pipes and Structural Components to NASA
Thermacore recently delivered Constant Conductance Heat Pipes (CCHPs) to NASA in support of the agency's Global Precipitation Measurement (GPM) mission. Thermacore also delivered high thermally conductive k-Core® structural components for the agency's Thermal Infrared Sensor (TIRS) program supporting the Landsat Data Continuity Mission (LDCM). NASA's GPM program seeks to … [Read more...]
Report Unveils 75 Incidences of Electronic Interference on Planes
A report by the International Air Transport Association, a trade group representing more 230 passenger and cargo airlines worldwide, documents 75 separate incidents of possible electronic interference that airline pilots and other crew members believed were linked to mobile phones and other electronic devices. The report covers the years 2003 to 2009 and is based on survey … [Read more...]
Companies Announce First Implementation of Test System
Aeroflex Incorporated and fjord-e-design GmbH have implemented a TETRA II test system on a portable radio tester, the Aeroflex 3920 Digital Radio Test Set. The test solution allows transmitter and receiver testing of base stations and mobile stations supporting the TETRA Enhanced Data Service (TEDS). In the implementation, Aeroflex and fjord e-design demonstrated TEDS Frequency … [Read more...]
Rugged Cable Assembly for High Throughput Production Test Applications
W. L. Gore & Associates, Inc., has added a rugged 18 GHz cable assembly to its GORE® PHASEFLEX® Microwave/RF Test Assemblies line. This rugged cable assembly is specifically engineered for high throughput production test applications in the wireless infrastructure market. The ergonomic design of this cable assembly eliminates the need to use a torque wrench to connect and … [Read more...]
Two-Piece Board Level Shielding
Tech-Etch’s new SlimShield is a low-profile, two-piece board level shielding line with a dimpled cover that snaps into etched holes on the fence and offers shield heights as low as to .060”. Multi-cavity designs are achieved by incorporating internal fences enabling multiple components to be shielded with the same part. Mounting pins are offered in any configuration. There is … [Read more...]
Automated Radiated Immunity Test System for MIL-STD 461
AR RF/Microwave Instrumentation’s latest automated system for conducting radiated susceptibility testing, the AS18027 AR System, has been specifically designed to perform automated testing for MIL-STD 461 requirements. The system will produce fields up to 50V/m at 1 meter distance from 1-18 GHz. It is comprised of a variety of components including one of AR's new dual-band, … [Read more...]
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