Product category:
Compliance Engineering
News Release from: Rohde and Schwarz | Subject: ESU EMI test receiver
Edited by the Electronicstalk Editorial
Team on 06 July 2006
EMI test receivers have all standards
covered
The R and S ESU family of CISPR16-1-1-compliant EMI test receivers meet all civil and military standards for electromagnetic interference measurements.
The R and S ESU from Rohde and Schwarz is a new family of CISPR16-1-1-compliant EMI test receivers that meet all civil and military standards for electromagnetic interference measurements New FFT-based test methods accelerate measurements
This article was originally published on Electronicstalk on 8 Sep 2004 at 8.00am (UK)
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With the time-domain scan, users can perform overview measurements up to 100 faster than on previous EMI test receivers.
The instrument also features comprehensive test functions such as a complete set of parallel detectors including the new CISPR-RMS detector, RF scan, IF analysis and numerous report functions.
The R and S ESU is available in three models with frequency ranges from 20Hz to 8, 26.5 and 40GHz.
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Measuring the EMI and, in particular, the RFI field strength of an electronic product requires considerable technical effort and extensive time.
This is where the R and S ESU helps to increase the customer benefit by providing faster, more accurate measurements, thus drastically reducing measurement time.
This ensures lower costs and higher throughput - factors that are important especially in large EMC test labs.
The CISPR16-1-1-compliant R and S ESU EMI test receiver meets all civil and military standards for electromagnetic interference measurements.
The three models - the R and S ESU8, R and S ESU26 and R and S ESU40 with frequency ranges of 20Hz to 8, 26.5 and 40GHz - feature a wide dynamic range combined with low inherent noise and low measurement uncertainty, which ensures high-quality test results.
Each model is equipped with a second pulse-resistant RF input from 20Hz to 1GHz.
The R and S ESU comes with integrated preselection, which is a must for standards-compliant measurements, and a switchable amplifier up to 3.6GHz.
Wide-ranging test functions such as configurable RF scan, real-time IF analysis and the new time-domain scan for quick overview measurements allow complex tests to be performed easily and conveniently.
All detectors - peak, AV, quasi-peak, CISPR-AV, RMS as well as the CISPR-RMS detector proposed for standardisation - are digitally implemented, making measurements extremely stable and reproducible.
The time-domain scan - available for the first time in a commercial EMI test receiver - is a new method for overview measurements and is based on the fast Fourier transform (FFT).
Using this method to measure the EMI spectrum from 30MHz to1GHz and 9kHz IF bandwidth is up to a hundred times faster than with a conventional scan.
This results in higher throughput and lower costs per measurement.
The R and S ESU-K53 time-domain scan is available as a separate option.
Manual measurements continue to be a highly effective means of identifying, locating and suppressing sources of electromagnetic interference.
For this purpose, the R and S ESU features a large, easy-to-read TFT display on which users can see all information at a glance.
The measured values for the different detectors are displayed not only numerically but also in analogue bargraphs.
The influence of manipulations on the DUT can thus be immediately seen.
The lower part of the screen shows either the complete RF interference spectrum with limit lines or - with the real-time IF analysis - the conditions around the set receiver frequency.
The IF analysis in particular helps users to identify EMI and gives them an impression of the interference spectrum (ambient interference, for example) near the set measurement frequency.
Documentation of test results in EMC test and measurement must be easy to compile, conclusive and complete.
The R and S ESU family meets this requirement to perfection.
Using the high-performance report generator with editable templates and the preview function for checking the results, users can print the report or save it in different formats on data carriers.
An internal hard disk or USB interfaces are available for this purpose.
The R and S ESU EMI test receiver is available now from Rohde and Schwarz. Request a free brochure from Rohde and Schwarz ...
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