be found at http://ww
.cnca.gov.cn/cnca/zwxx/ggxx/images/20070418/1654.doc
http://www.cnca.gov.cn/cnca/zwxx/ggxx/images/20070418/1654.doc.
Instead of 19 categories and 132 items, it is 22 categories and 159 items.
For those who cannot read in English, it may be difficult to understand the
content
In addition to the other responses, I would add that you need to understand
what your magnetic emission standard is trying to protect. Since you are
going down to dc, the strong implication is that you need to measure up
close, as in the RTCA/DO-160 magnetic effects or compass-safe distance
It is difficult to beat Bartington for this measurement. Their fluxgate
sensors are highly accurate and sensitive.
You can use a low frequency spectrum analyzer or a low cost DAQ and suitable
software.
http://www.bartington.com/
I am not aware of a specific standard.
John McAuley
From: Gordon,Ian [mailto:ian.gor...@bocedwards.com]
Sent: Wednesday, April 18, 2007 1:06 AM
To: 'IEEE EMC SAFETY PSTC'
Subject: Magnetic field testing
All
Can anybody suggest a standard which describes how to perform magnetic field
emission testing from DC to at least 500Hz in addition to a
://www.
nca.gov.cn/cnca/zwxx/ggxx/images/20070418/1654.doc.
Instead of 19 categories and 132 items, it is 22 categories and 159 items.
For those who cannot read in English, it may be difficult to understand the
content. The table does not include HS codes. One way to read part of
content is to read
Ian,
You could use either MIL-STD-461E, Test RE-101, or DEF-STAN 59-41 Part 3,
Section 3, Test DRE02.
Neither of these start at DC, as they are concerned with varying magnetic
fields. They start at 30Hz and 20Hz.
You may want to adjust the limits, but the test methods should be sound.
Best
All
Can anybody suggest a standard which describes how to perform magnetic field
emission testing from DC to at least 500Hz in addition to a guide as to what
instrumentation to use? Ideally we would like a plot of the field against
its level, similar to that from a receiver as in electric field
The saga continues.
To discover a point of reference, I turned to the plug-in power supply used by
my customer with the current version of their product. This power supply
bears certification marks from two NRTLs (one N.A. lab's medical and dental
equipment power supply component mark and one
Greetings,
The later implementation dates for the California efficency rules were
accepted, however the new deadline is coming up quickly. I'm trying to
determine, for the benefit of our purchasing group, what others have
found relative to the cost of a direct plug in type class 2 adapter
In message
768ee6ab7d56d54bb5000ec2dd113e71018db...@de01exm61.ds.mot.com, dated
Wed, 18 Apr 2007, Leber Jody-G19980 jody.le...@motorola.com writes:
EN 61000-4-2 does not appear to be in the standards list for the EMC
Directive. However, CENELEC's website indicates that it is in the OJ
and
All,
EN 61000-4-2 does not appear to be in the standards list for the EMC
Directive. However, CENELEC's website indicates that it is in the OJ and even
provides dates. I was under the assumption that EN 61000-4-2 was not in the
OJ but referenced in a product specific immunity standard such as
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