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Fast electromagnetic compatibility test and diagnosis system with quantization electromagnetic interference

An electromagnetic compatibility and diagnostic system technology, applied in the direction of measuring electricity, measuring electrical variables, measuring devices, etc., can solve the problems of complex operation and high cost of microwave anechoic chamber method, and achieve low manufacturing and use costs, convenient and fast testing, simplified and fast Efficacy of Test Diagnosis

Active Publication Date: 2012-10-24
BEIHANG UNIV
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Problems solved by technology

In order to overcome the disadvantages of high cost and complex operation of the microwave darkroom method, the present invention provides an electromagnetic compatibility rapid test and diagnosis system with quantified electromagnetic interference

Method used

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  • Fast electromagnetic compatibility test and diagnosis system with quantization electromagnetic interference
  • Fast electromagnetic compatibility test and diagnosis system with quantization electromagnetic interference
  • Fast electromagnetic compatibility test and diagnosis system with quantization electromagnetic interference

Examples

Experimental program
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Effect test

Embodiment 1

[0088] Connect the hardware equipment receiving antenna 11, current probe 12, spectrum tester 20 and computer 30 well.

[0089] The radiation emission spectrum of the test object can be obtained by using the receiving antenna 11 . In use, the system automatically performs two tests according to the settings. For the first time, the radiated emission spectrum of the tested product under the condition of power-off was obtained. like Figure 3A Shown is the radiated emission spectrum of the tested product under the condition of power off. It can be seen from the figure that there is a large ambient signal around 23MHz. For the second time, the radiated emission spectrum of the tested product under the power-on condition is obtained. like Figure 3B Shown is the radiated emission spectrum of a signal generator under power-on conditions. It can be seen from the figure that the frequency spectrum includes both the signal generator's working emission signal and the environmenta...

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Abstract

The invention discloses a fast electromagnetic compatibility test and diagnosis system with quantization electromagnetic interference. A receiving antenna of the system is arranged on a frequency spectrum tester, a chuck end of a current probe is clamped on a cable through which tested objects are connected, the other end of the current probe is connected on the frequency spectrum tester which is connected with a computer; and the computer is internally provided with a fast electromagnetic compatibility test and diagnosis unit. The fast electromagnetic compatibility test and diagnosis unit is used for fast testing the electromagnetic-transmitted frequency spectrum of the tested objected on site, conducting analysis and diagnosis to the electromagnetic-transmitted frequency spectrum, and judging whether the electromagnetic transmission characteristic exceeds a standard limit value or has abnormality. The fast electromagnetic compatibility test and diagnosis system has important meaning on solving the electromagnetic compatibility problem and monitoring and evaluating the electromagnetic environment.

Description

technical field [0001] The invention relates to an electromagnetic compatibility rapid test and diagnosis system with quantified electromagnetic interference, which belongs to the technical field of electromagnetic interference testing in the electromagnetic compatibility technology. Background technique [0002] With the development of science and technology, more and more electronic and electrical equipment have entered every corner of society. In a limited space, the density of electronic equipment and electrical equipment is increasing, the power of the equipment is increasing, and the radio spectrum is becoming increasingly crowded, resulting in the deterioration of the electromagnetic environment in a limited space. How to make electronic equipment and electrical equipment in the same electromagnetic environment not interfere with each other and operate normally under the condition of limited time, space, and spectrum resources has become an important issue, which is r...

Claims

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Application Information

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IPC IPC(8): G01R31/00
Inventor 谢树果刘亚奇李圆圆杜威张宇陈曦
Owner BEIHANG UNIV
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