A testing method for the temperature difference of the helix SWS

Author

Pu Wei ; Guodong Wang ; Cheng Cheng ; Xiaohan Sun ; Bo Chen ; Jinjun Feng ; Tiechang Yan ; Yanmei Wang ; Dongya Lv

Author_Institution

Res. Center for Electron. Device & Syst. Reliability, Southeast Univ., Nanjing, China

fYear

2015

Firstpage

1

Lastpage

2

Abstract

We proposed a novel testing method for the temperature difference distribution between the helix and the shell of the helix slow-wave structure (SWS). The thermal resistance of the SWS can be deduced by the temperature difference. A distributed micro fiber Bragg grating (FBG) sensor array and the thermocouple sensors are designed to measure the temperature distribution of the helix and the shell respectively in SWS when heating the helix by the electricity. An experiment on an X-band SWS was made and the thermal resistance was deduced which makes the temperature distribution model of the SWS more accurate.

Keywords

Bragg gratings; fibre optic sensors; sensor arrays; slow wave structures; temperature distribution; thermal resistance; thermocouples; FBG sensor array; X-band SWS; distributed microfiber Bragg grating sensor array; helix SWS; helix slow wave structure; temperature difference distribution; thermal resistance; thermocouple sensors; Sun; Testing; helix traveling-wave tubes; slow-wave structure; temperature difference; thermal resistance;

fLanguage

English

Publisher

ieee

Conference_Titel

Vacuum Electronics Conference (IVEC), 2015 IEEE International

Print_ISBN

978-1-4799-7109-1

Type

conf

DOI

10.1109/IVEC.2015.7223998

Filename

7223998