Space-borne multichannel microwave switch testing device

Abstract

A space-borne multichannel microwave switch testing device comprises a programmable power supply, a switch state driving module, a switch telemetering acquisition module, a radio frequency switch matrix set, a detector, a signal source, an oscilloscope, a vector network analyzer and an industrial personal computer. The industrial personal computer controls the value of voltage outputted by the programmable power supply through a network, controls switching of the radio frequency switch matrix set, controls the switch state driving module to produce commands of independent driving switches in N*4 channels, controls the switch telemetering acquisition module to collect state telemetering signals of independent detected switches in N*4 channels, controls the signal source to produce continuous wave signals, controls the oscilloscope to obtain driving current values of the detected switches and switching time of the detected switches, and controls the vector network analyzer to obtain radio frequency S parameters of the detected switches; state conversion threshold voltage of the detected switches is obtained by changing driving ranges of driving commands; the service life of the detected switches is obtained by recording accurate state conversion frequency of the detected switches.

Description

technical field [0001] The invention relates to a device capable of simultaneously realizing automatic testing of performance indexes of N space-borne mechanical microwave switches, which can be used for performance testing in microwave switch development and production. Background technique [0002] Foreign aerospace microwave switch products have a long history of development, and the technical level has always been at a relatively high level. For example, companies such as American TELEDY, Canadian COMDEV, and French Radiall have serialized products. However, these companies do not disclose specific methods and devices for testing their serialized products. The US military standard "MIL-DTL-3928F" (23December 2005) stipulates the general test standard for the electrical performance of microwave switches, but it does not involve the methods and devices for automatic testing of microwave switches. [0003] For a long time, the microwave switches required by my country's on...

AI Technical Summary

Problems solved by technology

[0005] The technical problem of the present invention is: to overcome the deficiencies of the prior art, to provide a device suitable for automatic testing of the switching time, threshold voltage and life test of the space-borne mechanical microwave switch, and to solve the problem of the development of domestic microwave switches. And the test problems of electrical performance in production, so that the test data is complete and accurate, which can greatly improve the test efficiency and reduce the test cost

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