Injection signal detection probe and military standard CS101 project measurement system

Abstract

The invention relates to the technical field of military equipment and discloses an injection signal detection probe and military standard CS101 project measurement system The probe comprises an impedance converter and a DC blocking device which are connected with each other; wherein an impedance converter is connected with the power input and the monitoring end of the tested device, and the DC blocking device is connected with the measurement receiver. The impedance converter performs impedance conversion on a test power supply signal input by the monitoring end of the tested equipment to obtain a first signal and outputs the first signal to the DC blocking device; the DC blocking device receives the first signal, eliminates a DC voltage signal in the first signal, obtains a second signaland transmits the second signal to the measurement receiver. The injection signal detection probe and military standard CS101 project measurement system provided by the invention can cover all powersupply type test requirements, especially the 50Hz detection requirements of the Chinese power grid, and have high measurement sensitivity and dynamic range; and meanwhile, measurement and use of thedevice completely meet standard requirements of the standard CS101 test, and accuracy of the test is guaranteed while the standardized test is realized.

Description

technical field [0001] The invention relates to the technical field of military equipment, in particular to an injection signal detection probe and a measurement system for military standard CS101 items. Background technique [0002] CS101 power line conduction sensitivity is a must-test item in the MIL-STD-461 standard, which is applicable to all military platform equipment. The purpose is to test the ability of the EUT (Equipment Under Test, equipment under test) to withstand the signal coupled to the input power line. During the CS101 test, it is necessary to detect the level of the injected signal at the power port of the EUT. [0003] At present, voltage probes that use oscilloscopes to detect the level of injected signals at EUT power ports have mature technology and are of various types. As for voltage probes that use measuring receivers to monitor, only PEARSON in the United States has mature equipment. [0004] PEARSON in the United States has PRD-120 probes and PR...

AI Technical Summary

Problems solved by technology

[0007] It can be seen that in the CS101 test item detection of PEARSON’s PRD probe in the United States, the PRD probe of the measurement receiver is connected to the monitoring terminal before the coupling transformer injects the test signal, which will affect the loop impedance of the test circuit. The test principle does not conform to MIL-STD-461 Standard requirements, test results are inaccurate

[0008] In addition, the PRD-120 probe and PRD-240 probe of PEARSON in the United States are only designed for the US power grid. For example: PRD-240 is only suitable for 100VAC / DC to 240VAC / 270VDC; PRD-120 is only suitable for power grid requirements below 120VAC / DC. Both cannot meet the test requirements of 380V, 50Hz grid power supply, and cannot cover the test requirements of China's grid

Images