System design for adopting magnetofluid and LPFG to measure magnetic field and temperature

Jie Zhang; Hai-bo Ge; Hao Cheng; Jia-Wei Lang

doi:10.1117/12.2256071

28 February 2017 System design for adopting magnetofluid and LPFG to measure magnetic field and temperature

Jie Zhang, Hai-bo Ge, Hao Cheng, Jia-Wei Lang

Proceedings Volume 10256, Second International Conference on Photonics and Optical Engineering; 102565U (2017) https://doi.org/10.1117/12.2256071
Event: Second International Conference on Photonics and Optical Engineering, 2016, Xi'an, China

Abstract

Owing to the insufficient attention to temperature change resulting from the magnetic field sensing scheme of magnetic liquid and long period fiber grating (LPFG), the sensing scheme that measures magnetic field and also the temperature at the same time by using magnetic liquid and two cladding long period fiber gratings with different effective thermal optical coefficient is presented. By measuring the difference of resonance wavelengths between the two long period fiber gratings, the variation of temperature is obtained and then the magnetic field measurement results will be corrected. The relationship between a certain range of temperature variation and the variation of resonance wavelength of long period fiber grating and the magnetic liquid refractive index will be revealed by means of theoretical analysis. System emulation indicates that if the ambient temperature variation is within 14 °C, the maximum relative error of obtained temperature is 1.5% and the precision of magnetic field intensity based on the magnetic field sensing scheme of magnetic liquid and long period fiber grating is at least improved by 70%.

Citation Download Citation

Jie Zhang, Hai-bo Ge, Hao Cheng, and Jia-Wei Lang "System design for adopting magnetofluid and LPFG to measure magnetic field and temperature", Proc. SPIE 10256, Second International Conference on Photonics and Optical Engineering, 102565U (28 February 2017); https://doi.org/10.1117/12.2256071

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available