The problem of ambient vibration caused by urban rail transit continues to be serious, but it
has not been satisfactorily resolved. This study investigates the structure of a novel phononic …

We report a high-resolution fiber optic temperature sensor system based on an air-filled
Fabry–Pérot (FP) cavity, whose spectral fringes shift due to a precise pressure variation in …

Aiming at the problem of traditional temperature demodulation due to ignoring the irregular
change of the thermo-optical and thermal expansion coefficients, a demodulation method …

It is still a challenge to realize the absolute optical path difference (OPD) demodulation of the
high-finesse fiber-optic Fabry-Perot (FP) sensors with a high resolution and high speed. This …

The resolution of the measurement detection and sensitivity of a polarized low coherence
interferometer (PLCI) can be pre-engineered by optimizing the key parameters of the …

A fast real-time demodulation method based on the coarsely sampled spectrum is proposed
for transient signals of fiber optic extrinsic Fabry-Perot interferometers (EFPI) sensors. The …

Reference evapotranspiration (ET0) is an important part of the water and energy cycles
during crop growth. The study of its changing trend is of significance for guiding efficient …

China Railway Track System (CRTS)-II-slab ballastless track is a new type of track structure,
and its interlayer connection state is considerably important for the operation safety and ride …

A dual-parameter compensation method focusing on spatial frequency and spatial phase is
proposed to enhance the demodulation precision of a polarized low-coherence …

Tunable Fabry-Perot (FP) filters are being increasingly employed in tunable fiber lasers for
wavelength selection and tuning. To address single cavity restrictions on transmittivity and …