Calculation of specific loss power of magnetic fluids by mean spherical approximation (MSA) model

Guba, Sándor; Horváth, Barnabás; Szalai, István

doi:10.1016/j.molliq.2023.123487

Cited by 1 publication

(1 citation statement)

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“…11 PCF is also used as a unique optical material for fabricating sensors and can be applied in several fields since pores can be filled with different materials to change the refractive index difference in the two modes. 12 The PCF is combined with the magnetically sensitive material [13][14][15] to form a fiber-optic magnetic field sensor and applying a magnetic field to the sensitive material can change the phase parameters of the beam traversing the fiber. Finally, the magnetic field is measured by monitoring the spectrum of the corresponding parameters.…”

Section: Introductionmentioning

confidence: 99%

Temperature self-compensating photonic crystal fiber grating magnetic field sensor

Sun,

Yang,

Hao

et al. 2024

Opt. Eng.

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Magnetic fluid is a good magneto-optical material. In this paper, a kind of side-etch photonic crystal long-period grating based on magnetic fluid filling is proposed. Simultaneous detection of magnetic field strength and temperature through integrated surface plasma resonance (SPR) and long period grating (LPG) sensing. The refractive index of magnetic fluid changes with the influence of magnetic field intensity and temperature. Based on the above sensing mechanism, the test results show that the magnetic field intensity sensitivity of the LPG sensor is −35.91 pm∕GS, and the temperature sensitivity is 51.4 pm∕°C. The temperature sensitivity of the SPR sensor is −568 pm∕°C, which accurately compensates for temperature crosstalk. The calculated error rate is E ðΔBÞ ¼ 0.124%; E ðΔT Þ ¼ 0.308%. The sensor structure provides a good application prospect for precise magnetic field intensity measurements.

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