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Advise on electronic design, PCB design and mechanical design early in a project. |
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Review of electronic design, PCB design and mechanical design. |
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Pre-compliance testing. |
Below are listed some of the types of measurements we can do. |
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| Emission: |
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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.) |
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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.) |
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Radiated
field strength. In some cases antenna measurements can be made. (Standard examples: EN 55011, EN 55022.) |
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Close-field
probing. Disturbance source location on PCBs and cables. Cabinet leakage. |
| Immunity: |
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ESD.
Electrostatic discharge testing according to standard. (Standard example EN 61000-4-2.) |
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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.) |
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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: |
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Measurement of electrostatic charge build-up and surface potential using “field-mill” measuring instrument. |
© 1996-2008 Avantel www.avantel.se |
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