The recommendations of C95.1-2005 protect against established adverse health effects in human beings. Daniel D. Hoolihan Hoolihan EMC Consulting Lindstrom, MN INTRODUCTION A new edition of the Institute of Electrical and Electronics Engineers (IEEE) Standard C95.1 was released in early 2006 and has been available for about a year. The new standard is a revision of the 1999 … [Read more...]
Simulation of In-vehicle Human Exposure to Electromagnetic Fields Due to On-board Transmitters
Numerical models can provide data from an enormous number of points and for a number of human simulants. Alastair R. Ruddle, Ph.D. MIRA Limited, Nuneaton, UK On-board transmitters are already commonly encountered in the vehicle environment: typical examples include mobile telephones, Bluetooth systems, and communications equipment used by the emergency services and armed … [Read more...]
New EMC Directive: 2004/1081 EC
Manufacturers should familiarize themselves with the additional requirements and the alterations found in the new EMC directive Manjula Bhati Electronics Regional Test Laboratory (West), Indian Ministry of Information Technology, Mumbai, India The current EMC directive 89/336/EEC, which was first published in 1989 and then succeeded by four amendments has been rewritten as … [Read more...]
Cost Considerations for Selecting RF Shielding Materials
Taking these factors into account can save time and money. Gary Fenical, Laird Technologies Delaware Water Gap, PA RF shielding materials are an important consideration when designing electronic components because these materials help ensure that the electronic device will perform to its optimum functionality. Considering RF shielding materials at the beginning of the … [Read more...]
Concerning Exposure of Workers and the General Public to Electromagnetic Fields
Keith G. Richens Cranage EMC & Safety Oakley, Shropshire, UK Introduction Electromagnetic fields (EMF) are universally present in the everyday environment, including workplaces and public areas. Measurements are made to identify and characterise them to ensure that people are not exposed to fields that could potentially cause injury or adversely affect … [Read more...]
ZERO GROUND Flexible (for EMI/RFI) Shielded Conduits
ZERO GROUND Flexible (for EMI/RFI) Shielded Conduits eliminate the need for costly, with long lead times and high minimum runs, custom shielded composite assemblies. These conduits are patent pending, utilize industry standard connectors, with most rated for direct burial and provide an excellent solution for those looking to effectively shield internal cables while providing … [Read more...]
First Amendment to the International Standard for EMC on Medical Devices
Amendment 1 to IEC 60601-1-2 is worth a careful reading by anyone involved in the design, manufacturing and/or testing of electrical medical equipment. Daniel D. Hoolihan Hoolihan EMC Consulting, Lindstrom, MN In September of 2004, the International Electrotechnical Commission (IEC) released Amendment 1 to the Second Edition of IEC 60601-1-2. This Amendment was prepared by … [Read more...]
Achieving EMC in Pharmaceutical Industry Equipment – A Case Study
The many devices used in an industrial setting can present significant challenges in emissions control. Vinod Kumar Dhar Electronics Regional Test Laboratory (West), Indian Ministry of Information Technology, Mumbai, India While controlling electromagnetic interference is a worldwide challenge encountered in homes, shops, and offices, that task can be particularly difficult … [Read more...]
Selecting Antenna/Power Amplifier Combinations for the Coming New RF Immunity Standards
Though far from certain, it looks as if 6 GHz is a strong candidate for the upper frequency for consumer products. Art Cohen A.H. Systems, Inc., Chatsworth, CA, USA Thomas Mullineaux Empower RF Systems, Inc. Inglewood, CA, USA Testing products for susceptibility to radiated fields above 1 GHz is on the horizon. The new medical standard now stipulates testing to 2.5 GHz, and … [Read more...]
EMC Design Considerations for Medical Products
Collocation of sensitive medical electronic devices can result in equipment malfunction in medical settings ANTHONY A. DIBIASE INTERACTION BETWEEN MEDICAL products and their electromagnetic environment (EME) presents new challenges to medical device manufacturers, medical service providers, and the regulatory authorities who are responsible for insuring the health and safety … [Read more...]
