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Differential mode injection test system
Differential mode injection test system
Summarize
The system integrates signal source, power meter, switch matrix, spectrum analyzer, power amplifier, main control platform, feeder, etc., for carrying out external RF electromagnetic environment sensitivity test, the specific test method refer to "11.5 differential mode injection method" in GJB8848-2016.
On the basis of "11.5 differential mode injection method", our company proposed an optimized test solution, and has applied for an invention patent "A differential mode injection test method and system for electromagnetic compatibility sensitivity Test".
Application Scenario
System links:
1. Calibrate link
2. Calibrate link
Main technical parameters
Test process：
According to "11.5 Differential Mode Injection Method" in GJB8848-2016, the system test is mainly divided into 4 steps:
1. When the system works in the linear region, select the appropriate field intensity E1 irradiation differential mode to inject the coupling module, and obtain the frequency response U1 of the monitoring port;
2, the signal source access coupling module into the port, adjust the signal yard power, so that the monitoring port frequency response U2=U1, read the injection terminal voltage V1;
3, according to step 1 and step 2 calculate the transfer function K, K=E1/V1, K is the frequency function;
4. According to the external electromagnetic sensitivity field E2, calculate the equivalent injection voltage V2=V1*E2/E1, and refer to Step 2 to inject V2.
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Record number: Su Gongwang Security 32011502021381