Long-Term Temperature Monitoring in CMS Using Fiber Optic Sensors

Author

Saccomanno, Andrea ; Laudati, Armando ; Szillasi, Zoltan ; Beni, Noemi ; Cutolo, Antonello ; Irace, Andrea ; Giordano, Michele ; Buontempo, Salvatore ; Cusano, Andrea ; Breglio, Giovanni

Author_Institution

Dept. of Biomed., Electron., & Telecommun. Eng., Univ. of Naples Federico II, Naples, Italy

Volume

12

Issue

12

fYear

2012

Firstpage

3392

Lastpage

3398

Abstract

In this paper, the results of the long-term temperature monitoring of the compact muon solenoid experiment (CMS) at CERN are shown. The measurements were carried out by means of a system based on fiber Bragg grating (FBG) sensors in wavelength-division multiplexing (WDM). Due to the harsh working conditions at the CMS, the FBG sensor represents the ideal candidate to realize a reliable and accurate sensing system. The sensing principles of the FBG sensor and its temperature characteristics are introduced. A temperature monitoring system based on FBG for high-energy physics applications is designed and installed. The sensing system was used successfully last year in monitoring the temperature of CMS bulkhead. The reported results show good reliability and high accuracy of the FBG sensing system during the long-time working stage.

Keywords

Bragg gratings; fibre optic sensors; monitoring; muons; reliability; solenoids; temperature measurement; wavelength division multiplexing; CERN; CMS; FBG sensing system; WDM; compact muon solenoid; fiber Bragg grating; fiber optic sensor; reliability; temperature characteristics; temperature measurement; temperature monitoring; wavelength division multiplexing; Fiber gratings; Monitoring; Optical fiber sensors; Temperature measurement; Temperature sensors; Compact muon solenoid (CMS); fiber Bragg grating (FBG) sensor; high energy physics; monitoring system; temperature;

fLanguage

English

Journal_Title

Sensors Journal, IEEE

Publisher

ieee

ISSN

1530-437X

Type

jour

DOI

10.1109/JSEN.2012.2205989

Filename

6225416