Introduction in EMC

murmerlastUrban and Civil

Nov 16, 2013 (3 years and 8 months ago)

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EMC


Electromagnetic Compatibility




Frank Gräbner

Lecture EMC




Gräbner




Programme


1. Introduction

1.1

Conception

1.2

EMC Standards


2. Electromagnetic Coupling

2.1 Disturb Flow, Disturb Hollow

2.2 Nature of Coupling

2.3 EMC Design


3.
EMC Arrangement




Lecture EMC




Gräbner



3.1 Shielding


3.2 EMC Constructions




4

EMC Measurements


4.1 Practice


4.2

New Measurements Standards




5

EM Fields and Life


5.1 Biological Effects of electromagnetic fields









Lecture EMC




Gräbner


6.

Computer Simulation


( voltage emission, RF field Mefisto 2D )



Lecture EMC




Gräbner

Books




[ 1 ]

Phillipow, E.


Grundlagen der Elektrotechnik,


Akademischer Verlag 1976, Leipzig



[ 2 ]

Durcansky, G.


EMV gerechtes Gerätedesign, Franzis


Verlag München 1992



[ 3 ]

Unger, H.



Elektromagnetische Wellen auf


Leitungen, Hüthig Verlag, Heidelberg


1980



[ 4 ]

Leute,



Kunstoffe und EMV, Hanser Verlag, 2000



[ 5 ]


Weiss, J.


EMV


gerechtes Gehäusedesign, TAW


Wuppertal, Seminar
-
Unterlagen, 2003


Lecture EMC




Gräbner


1.1


Conception





Why EMC ?


-
small packages

-
higher frequency CPU

-
new information technology ( WLAN, IEEE
standarts, UMTS, GPRS ..... )

-
new car technics , car distance radar

-
The devices must be safe from other
electromagnetic fields, voltages and impulses

Lecture EMC




Gräbner



1.1


Conception

EMC in Hospitals






Lecture EMC




Gräbner

1.1


EMC Directive:


All apparatus liable to cause electromagnetic disturbance (

emission ) or performance of wich is liable to be affect by

such disturbances ( immunity ) .


But a device must not have so much

emission and must work well in an

immunity effect.





Lecture EMC




Gräbner


1.1

Example for Emission (


conducted and E


Field )
















1.2 EMC Standards



Gräbner


-
Product Standards, Generic Standards , Company Standards and
...


-
In Europe : EN Standards for the EU Market


For Example:



Voltage Disturbance

EN 55011


Radiation Disturbance

EN 55011


Current Harmonics


EN 60555
-
2


Electrostatic Discharge

EN 61000
-
4
-
2


Burst



EN 61000
-
4
-
4


Surge



EN 61000
-
4
-
5


RF Immunity


EN 61000
-
4
-
6


Magnetic Fields Immunity

EN 61000
-
4
-
8


.....................................................................................






1.2 EMC Standards



Gräbner





Basic Standards

EN DIN 61000
-
5
-
x




Generic Standards







Hierarchy


EN DIN 61000
-
6
-
x



Product Family Standards


( Limits )



Product Standards


( special )





first !!!!


z.B. USV Norm, PC





use this standard