Research on Automatic Measurement Method of Saturation Characteristics of Broadband TWT

Gong, Dapeng; Huang, Tao; Li, Jianqing; Li, Bin

doi:10.1109/ivec.2019.8744746

Cited by 2 publications

(3 citation statements)

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“…However, more discrete points mean that the software needs more setup and acquisition operations, which will undoubtedly increase the test time. Therefore, the method of self‐adaptive change of power step is adopted to balance the contradiction between test time and test accuracy . Its basic principle is similar to the third method discussed above.…”

Section: Automatic Test Of Power Characteristics Of Broadband Twtsmentioning

confidence: 99%

“…Therefore, the method of self-adaptive change of power step is adopted to balance the contradiction between test time and test accuracy. 12 Its basic principle is similar to the third method discussed above. But the problem that above method is susceptible to power jitter can be solved with the relative value of power change, and the specific implementation process is as follows.…”

Section: Software Systemmentioning

confidence: 99%

“…When the system acquires the data, the validity of the current input power will be verified according to Equation (12). If it is satisfied, the test process will be continued, otherwise the current data will be invalid and not be saved to the sweep data of the current test frequency.…”

Section: The Influence Of the Preamplifier In Test Processmentioning

confidence: 99%

See 2 more Smart Citations

Automatic test system for power characteristics of broadband TWTs

Gong

Huang

et al. 2019

Int J RF Microw Comput Aided Eng

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In this article, an automatic test system will be presented, which is based on LabVIEW and compatible with the general hardware platform. It aims at improving the test accuracy and efficiency of power characteristics of high‐power broadband traveling wave tubes. The key point is to demonstrate how to creatively solve the contradiction between accuracy and time in the test of saturation characteristic via self‐adaptive change of power step and how to implement the high‐precision test of fixed power characteristics via dichotomy. In order to further improve the test accuracy and practicability, input power verification is designed in the software to eliminate the adverse effects of the preamplifier, and compensation data management mechanism is used to help users obtain more accurate power characteristics of the tested broadband traveling wave tube. In addition, multi‐level software protection for helix current is designed, apart from hardware protection of power supply, with the purpose to level up system security. Finally, the reliability and practicability of the automatic test system are verified by data comparison and data analysis, and the automatic system can vastly improve the measurement efficiency of power characteristics in the productive process of broadband traveling wave tubes.

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Section: Automatic Test Of Power Characteristics Of Broadband Twtsmentioning

confidence: 99%

Section: Software Systemmentioning

confidence: 99%