Overview: This webinar – number 2 in a series of 2 – describes simple, low-cost, cost-effective, qualitative EMC bench-testing techniques for emissions and immunity, using close-field probes (that many people make themselves) and low-cost portable measuring instruments. These practical techniques can be used in every stage of a product’s lifecycle, from … [Read more...]
EMC Analyzers for CISPR 16-1-1 Compliance Available for Rent
Advanced Test Equipment Rentals has announced the availability of two new EMC analyzers for CISPR 16-1-1 compliance for rent. The Agilent N9038A MXE EMI receiver is a fully CISPR-compliant EMI analyzer. With option 526, which provides frequency coverage from 20 Hz up to 26.5 GHz, the built-in diagnostic tools extend the versatility of the N9038A EMI receiver. Features like … [Read more...]
CISPR 16-1-2:2014: Specification for Radio Disturbance and Immunity Measuring Apparatus and Methods – Part 1-2: Radio Disturbance and Immunity Measuring Apparatus – Coupling Devices for Conducted Disturbance Measurements
The International Electrotechnical Commission (IEC) has published CISPR 16-1-2:2014, "Specification for Radio Disturbance and Immunity Measuring Apparatus and Methods - Part 1-2: Radio Disturbance and Immunity Measuring Apparatus - Coupling Devices for Conducted Disturbance Measurements." The new standard is available in the IEC’s webstore here. "CISPR 16-1-2:2014 specifies … [Read more...]
Risk of ESD-Sensitive Devices in Proximity to ANSI/ESD STM2.1-Compliant Garments by Field-Induced Model Discharge
Bob Vermillion CPP/Felow Certified, ESD Engineer-INARTE RMV Technology Group, LLC A NASA Industry Partner During ESD assessments, it is not uncommon to see personnel wearing wool, silk, cotton, polyester blends and static control overalls (ESD Garments). Some ESD garment types consist of an embedded conductive grid network (Figure 1) in combination with cotton or polyester … [Read more...]
A National Plan for EMP Protection (Part 2) – Protection of Buildings
Don White Consultant, Don White Consultants Jerry Emanuelson Consultant Part 1 of this article addressed a proposed national plan for U.S. EMP protection. Part 2 of the article presents methods and techniques for EMP protection of buildings, solar rooftops and other structures. As such, Part 2 covers details of shielding, bonding, grounding, and cable or device surge … [Read more...]
EMC War Stories: Letters from Home
Candace Suriano Suriano Solutions John Suriano Nidec Automotive Motors Americas PART 1: MY CELL PHONE CAN TALK TO ME IN STEREO Dear John, I am snowed in here at home with the kids. You may be in an EMC lab solving some tough issues, but I’ve been very busy here at home with some interesting problems of my own. We’ve been bothered by the behavior of our computer … [Read more...]
A Design Review of the Automotive Radiated Emissions Test Fixture
Tom Mullineaux RF Engineer From a cold, dispassionate RF engineering perspective, the automotive radiated test set-up is a strange looking transmit/receive arrangement, with the cable harness of the equipment under test (EUT) suspended above a large copper sheet acting as the transmitter, and a huge antenna close to the chamber floor, and partly in the shadow of the copper … [Read more...]
EMC Practice – Measurement Under Interference
Clean transmission of signals from the EUT. Jorg Hacker Langer EMV-Technik GmbH It is uncommon to use an oscilloscope to monitor signals from the EUT when testing immunity to interference. The complicated environmental conditions in the anechoic chamber during RF irradiation or burst and ESD tests lead to measuring errors and unwanted interference in the EUT. Modifications to … [Read more...]
Inexpensive Radiated Immunity Pre-Compliance Testing
As an EMC consultant, it seems that lately I’ve run into many client projects where radiated immunity has cropped up as the major issue. One reason for this may be the trend in using digital and analog circuits that are powered by 3.3 volts, and lower, which decreases noise margins significantly. Sensitive analog circuitry is also greatly affected. The compliance testing for … [Read more...]
Software Option for EMC Testing in Line with New CISPR Standard
Test and measurement equipment provider Rohde & Schwarz has introduced a new software option for EMC tests on multimedia devices in line with the new CISPR 35 standard. Expected to be adopted in late March, the CISPR 35 EMC standard prescribes future disturbance signal testing requirements for multimedia equipment and will combine the current test standards for devices and … [Read more...]
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