| What kind of EMC support can we give?
|
 |
Advise
on electronic design, PCB design and mechanical design early in a project. |
 |
Review
of electronic design, PCB design and mechanical design. |
 |
Pre-compliance
testing. |
What kind of testing can we do in our EMC pre-compliance lab?
Below are listed some of the types of
measurements we can do. |
Emission:
|
 |
Conducted
emission.
AC and DC power cables (disturbance voltage). Signal cables (disturbance current).
Ethernet cables (disturbance voltage and disturbance current).
(Standard examples: EN 55011, EN 55014, EN 55022.) |
 |
Radiated
power.
Via cables radiated power. Fast method for pre-compliance. Works well for well-screened or
small equipment. Often gives a good idea of performance even for bigger, not so
well-screened equipment. (Standard examples: EN 55014, EN 55011, EN 55022.) |
 |
Radiated
field strength.
In some cases antenna measurements can be made.
(Standard examples: EN 55011, EN 55022.) |
 |
Close-field
probing.
Disturbance source location on PCBs and cables. Cabinet leakage. |
Immunity:
|
 |
ESD.
Electrostatic discharge testing according to standard.
(Standard example EN 61000-4-2.) |
 |
Electromagnetic
field immunity.
We can not illuminate an object with an electromagnetic field. However, sometimes location
of sensitive areas of PCBs or sensitive cables can be made by injecting fields using
close-field probes, current probes or absorbing clamp.
(Standard example EN 61000-4-3.) |
 |
Immunity
to conducted radio-frequency currents induced by radio-frequency fields.
In some cases we can make relevant testing of immunity to injected rf currents.
(Standard example EN 61000-4-6.) |
Electrostatic surface potential:
|
 |
Measurement
of electrostatic charge build-up and surface potential using field-mill
measuring instrument. |