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IEC 61000-4-6 Conducted RF Immunity and BCI Test System
Complied Standards & Clauses
IEC 61000-4-6: Electromagnetic compatibility (EMC)-Part 4-6: Testing and measurement techniques-Immunity to conducted disturbances, induced by radio-frequency fields
CISPR11/ GB4824: Industrial, scientific and medical (ISM) radio-frequency equipment and similar equipment –Radio-frequency disturbance characteristics –Limits and methods of measurement
CISPR13/ GB13837: Sound and television broadcast receivers and associated equipment –Radio disturbance characteristics –Limits and methods of measurement
CISPR14-1/ GB4343.1: Electromagnetic compatibility. Requirements
for household appliances, electric tools and similar apparatus
-Part 1: Emission
Equipment Overview
Samples and Resrictions: Industrial, scientific and medical (ISM) radio-frequency equipment; sound and television broadcast receivers and associated equipment; household appliances, electric tools; etc.
Application: Absorption clamp measurement (ACMM) is an alternative to the method
of measurement of radiation emission for small test objects, such
as household appliances and power tools, where only one power lead
is connected. ACMM with absorbing clamp to determine the
disturbance power. The advantages of ACMM's radiated emission
measurements are the reduction of testing time and cost savings.
Test Principle: The principle is that for a small EUT, the radiation emitted by the
common-mode current on the lead is much larger than the outward
radiation on the surface of the test object. The power cord of the
EUT can be considered as a radiating antenna where the disturbance
power is approximately equal to the power at the measured EUT
provided to the test line (LUT) at the position where the clamp is
at the common mode current maximum. In order to find "common-mode
current maxi- mum," the absorption forceps need to be able to move,
so an absorber clamp rail length of 6 meters is required in the
test system.
Main test equipment: receiver, power absorption clamp, decoupling clamp, slide, EMC test software
Test environment:shielded room (length greater than 8m)
Technical Parameters
Main Test Equipment | Receiver, power absorption clamp, decoupling clamp, slide, EMC test software, etc. |
Test Environment | Shielded room or in an ordinary laboratory with a steel plate which cover larger than test area and grounded and a 10cm thickness wooden support. |
Frequency Range | The frequency range specified by the general standards is 30MHz - 300MHz, and the frequency range required for audio and video equipment is 30MHz-1GHz. |
Schematic Diagram | ![]() |