The TD5207 from Micronor, a non-metallic fiber optic rotary encoder, has been designed especially for use in motion control systems operating in extreme electromagnetic fields. Medical diagnostic and research applications include MRI (magnetic research imaging) or NMR (nuclear magnetic resonance) tomography imaging systems. The encoder also serves as the control feedback … [Read more...]
Intertek Achieves Acceptance of Certification Marks from the United Arab Emirates
Intertek, well known for its EMI/RFI and other test offerings, has announced that its safety and certification marks have been formally accepted in the United Arab Emirates by the Dubai Civil Defense and Abu Dubai Civil Defense Departments. Intertek’s ETL and WHI marks acceptance provide manufacturers direct global market access to one of the fastest growing construction … [Read more...]
Crucial RF Shielding Selection Considerations
Gary Fenical Laird Technologies INTRODUCTION Designers must attenuate RF signals for various reasons. Since a product cannot be legally marketed unless it meets EMC requirements, designers must curtail RF signals above a certain limit. It is important to consider RF shielding materials at the beginning of a design project because choosing the correct kind of shielding upfront … [Read more...]
Snap-In Flange Mount Filters Target High Current Applications
The PBH filter series from Power Dynamics, Inc. (PDI) targets applications with high current (16/20 A) requirements. These filters are available with varying configurations of components and termination styles. They are available in flange mount or snap-in types. The medical filters offer a maximum leakage current of 2 µA at 120 VAC at 120 VAC, 60 Hz. A ground choke can be … [Read more...]
Spectrum Aeromed Module Passes EMI Testing and Wins Military Air Worthiness Award
North Dakota-based Spectrum Aeromed has announced that its ambulance module was subjected to exhaustive testing requested by the U.S. Air Force. The Spectrum Aeromed ambulance module was subjected to EMI, electrical safety, severe vibration periods, altitude changes, rapid decompression, and environment testing. Following this testing, Spectrum Aeromed equipment was awarded … [Read more...]
British Agency to Study the Health Effects of EM Energy from MRIs
The Chairman of Great Britain’s Health Protection Agency, Sir William Stewart has announced that the Agency’s Board has approved in principle the need for an epidemiological study of possible adverse health effects from high static Magnetic Resonance Imaging (MRI) machines. He noted, “The exposures to patients and to medical staff from the magnetic fields can be high, and there … [Read more...]
Parker Hannifin Acquires Remaining Assets of Parker Seal de Mexico
Parker Hannifin Corporation, the parent company of EMI shielding company Chomerics, has announced that as of April 30, 2008, it had acquired the remaining stake in a joint venture Parker Seal de Mexico. Parker had held a 49-percent interest in the $8.3-million company before buying the remaining assets from various partners. The terms of the acquisition were not disclosed. The … [Read more...]
Handheld ESD Detector Indicates Relative Electrical Strength of Each Event
The 3M™ ESD Pro Event Detector from 3M Electronic Solutions is a handheld portable instrument that detects and counts discharges and indicates the relative electrical strength of each ESD event on a bar graph display. The device is intended to provide a quick measure of ESD protection - critical factor in sensitive component applications such as electronics assembly and … [Read more...]
RF-Based Cancer Treatment Said to Kill Malignancies Without Toxic Side Effects
Media sources from television's 60 Minutes and techie periodical Wired to professional tomes such as the Journal of Nanobiotechnology have reported on a unique, targeted cancer treatment that is said to destroy malignant cells while leaving healthy cells intact. Kanzius RF therapy was developed by a retired radio and TV engineer, John Kanzius. Unlike treatments such as … [Read more...]
On-site EMF Testing of an Emergency Network Communications Vehicle
Thorough testing requires taking measurements both inside and outside the vehicle. David A. Case, Jaime McLain and Murry Gavin Cisco Systems, Inc., Richland, Ohio, USA Experienced compliance test personnel are familiar with the usual spate of RF issues. Tasks range from performing MPE (maximum permissible exposure) studies and SAR (specific absorption rate) testing to … [Read more...]
