Milwaukee, WS-based Curtis Industries has acquired the electromagnetic interference filters and filtered connectors product lines of Filter Networks of Salisbury, MD. Curtis, a manufacturer of electromagnetic interference filters and wire interconnect terminal blocks, is a division of Power Holdings, Inc. of Milwaukee. Founded in 1935, Curtis operates a plant at 2400 S. 43rd … [Read more...]
Military
EMI Filter/Suppression Module Performs in Harsh Avionic Environments
The VPTi10-28 from VPT, Inc. is a new EMI filter and voltage transient suppression module that provides two modules in one mini-package to reduce the reflected noise of DC-DC converters and to protect the power system from inrush current damage. The VPTi10-28 is well suited to harsh, demanding applications such as military or avionics. The device serves as the filtered input … [Read more...]
Qantas Airbus Plunge
The latest interim report issued by the Australian Transport Safety Bureau (ATSB) has confirmed that the sudden drop in altitude of Qantas Flight 72 over Western Australia last autumn was caused by computer error. Shortly after the autopilot was switched off, one of the Airbus’ air data inertial reference units (ADIRUs) started providing “erroneous data spikes.” One crew member … [Read more...]
Building a State-of-the-Art 5-Meter Chamber
An efficient shield room for automotive testing progresses from design to finished structure Michael Koffink, Bob Mitchell Intertek ETL Semko Littleton, MA Four years ago, we noticed a growing demand for EMC testing from the automotive industry. As cars and trucks now feature myriad on-board electronic devices, they are increasingly susceptible to stray emissions while … [Read more...]
Reverberation Chamber for EMC Testing
The reverberation chamber provides the most realistic simulation/equivalency for electronics functioning within a cavity Er-Ping Li, Ph.D.; Xing-Chang Wei, Ph.D., Electromagnetic Labs, Singapore National Institute of High Performance Computing Singapore Introduction The problem is familiar, but growing. The widespread and ever-growing use of electronic devices with high-speed … [Read more...]
Enclosure Suppresses EMI in Military Airborne Configurations
A highly ruggedized system enclosure from One Stop Systems (OSS) targets military and airborne applications. Constructed of solid seam-welded aluminum, the 11U high enclosure measures 19″ (H) x 25″ x 17″ (W) and weighs 56 pounds. It contains a 3U 15-slot CPCI backplane and features a “floating card that sits within the enclosure and is surrounded by four banks looped cable … [Read more...]
Key EMC Standards on Avionics Available Online
The Vehicular Electronics Laboratory at Clemson University has posted a convenient update on the latest avionics EMC standards on its website. Included are ISO 14302e on “Electromagnetic Compatibility Requirements”, MIL-STD-461F, the “Military Standard for the Control of Electromagnetic Interference Characteristics of Subsystems and Equipment”, DO-160F on "Environmental … [Read more...]
More Aerospace Products
High-Voltage Disc Capacitors Suit Aerospace and Industrial ApplicationsThe Cera-Mite 715CxxKT series, a family of single-layer devices from Vishay Intertechnology, are screw-mount disc capacitors offered in a wide range of diameters and capacitance values over rated voltages from 10 k VDC to 40 k VDC. With low AC and DC coefficients and a negligible … [Read more...]
Enclosure Suppresses EMI in Military Airborne Configurations
A highly ruggedized system enclosure from One Stop Systems (OSS) targets military and airborne applications. Constructed of solid seam-welded aluminum, the 11U high enclosure measures 19″ (H) x 25″ x 17″ (W) and weighs 56 pounds. It contains a 3U 15-slot CPCI backplane and features a “floating card that sits within the enclosure and is surrounded by four banks looped cable … [Read more...]
Firm Wins $4.8 Million Contract to Shield Military Radio
Wisconsin-based VTI Vacuum Technologies, Inc. has been awarded a $4.8 million contract by the office of Federal Prison Industries/Unicor. (Unicor is owned by the U.S. Department of Justice.) The contract requires that VTI provide a corrosion-resistant topcoat,EMI shieldingand outsourcing of the CARC (chemical agent resistant paint) for 300,000 components that are assembled into … [Read more...]
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