Testing and measurement techniques - General guide on harmonics and interharmonics measurements and instrumentation, for power supply systems and equipment connected thereto.IEC 61000-4-7:2002+A1:2008 applies to instrumentation intended for measuring spectral components in the frequency range up to 9 kHz which are superimposed on the fundamental of the power supply systems at … [Read more...]
3-Channel Power Meter Covers 10kHz – 40 GHz Range
AR RF/Microwave Instrumentation’s new Model PM2003 3-channel power meter delivers 200 readings per second with one channel; and 100 readings per second when two channels are used. Two channels at a time can be simultaneously displayed and recorded; the third channel can be easily switched in to be displayed or recorded. Its dynamic range extends to 90dB when diode power heads … [Read more...]
EMC Filter Company’s Products Picked by Mexico’s Electric Utility
Mexico's electric utility Federal Commission of Electricity has chosen ESCO Technologies Inc.’s Aclara PLS TWACS® power-line technology for its Advanced Metering Infrastructure project. St. Louis-based ESCO, which manufactures RF shielding and EMC test products and provides engineered filtration products to the aviation, space and process markets, is a supplier of special … [Read more...]
Voltage Sag Testing for Industrial Equipment—and a New Power Quality Measurement Technology
Andreas Eberhard Vice President Power Standards Lab Immunity from voltage sags is vital for reliable operation of our ever-more-sophisticated electronic controls and equipment. Every electrical product should be able to ride through typical voltage sags, but in many cases the first sag test occurs after equipment is installed and in operation. Select the appropriate sag … [Read more...]
Field Probes Offer High Performance in Compact Size
Teseq Inc., a developer and provider of instrumentation and systems for EMC emission and immunity testing, now offers two new USB / RS232 electric field probes. The PMM EP-600 and EP-601 active broadband field probes benefit from a true spherical symmetrical dipole configuration. Sampling at a rate of 22 S/s to 0.03 S/s depending on filter settings, the probes’ 6 monopole … [Read more...]
Field Probes Offer High Performance in Compact Size
Teseq Inc., a developer and provider of instrumentation and systems for EMC emission and immunity testing, now offers two new USB / RS232 electric field probes. The PMM EP-600 and EP-601 active broadband field probes benefit from a true spherical symmetrical dipole configuration. Sampling at a rate of 22 S/s to 0.03 S/s depending on filter settings, the probes’ 6 monopole … [Read more...]
Company to Provide EMI Testing for U.S. Army Electronic Proving Ground
ManTech International Corporation recently announced that it has received a five-year, $286 million contract from the U.S. Army Electronic Proving Ground (EPG) at Fort Huachuca. Under the competitively awarded contract, ManTech will support testing for Command, Control, Communications, Computers and Intelligence (C4I), navigation, and sensor systems for reliability, … [Read more...]
General Guide on Harmonics and Interharmonics Measurements
The IEC recently release a new edtion of IEC 61000-4-7 titled “Electromagnetic compatibility (EMC) - Part 4-7: Testing and measurement techniques - General guide on harmonics and interharmonics measurements and instrumentation, for power supply systems and equipment connected thereto.”IEC 61000-4-7:2002+A1:2008 applies to instrumentation intended for measuring spectral … [Read more...]
New Immunity Test Software Provides Increased Functionality
Teseq Inc., a developer and provider of instrumentation and systems for EMC emission and immunity testing, recently announced a major upgrade to its AutoStar software, a comprehensive, integrated immunity test management program now in its fifth version. New standard features of AutoStar 5.0 that significantly increase functionality and usability include a new "overview" … [Read more...]
Using a Comb Generator with a Pair of Current Probes to Measure Cable Resonance
(A Useful Technique When a Tracking Generator is not Available) A comb generator RF source can be a handy substitute when a tracking generator is not available on a spectrum analyzer, EMC consultant Doug Smith says in this month’s Technical Tidbit. In this case, a USB powered comb generator RF source is used to supply the signal used to measure the resonant frequencies of a … [Read more...]
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