Detection of weak acoustic signals is of great significance. To achieve ultrahigh sensitivity
acoustic detection, a silicon cantilever-based fiber-optic acoustic sensor (FOAS) formed by a …

Sensing an incoming acoustic signal is typically associated with absorbing the energy,
perturbing the measurement and therefore causing a deformation of the sensing elements …

A novel fiber optic Fabry-Perot acoustic sensor based on a grooved diaphragm has been
proposed, avoiding the decrease of resonant frequency due to the enhanced sensitivity of …

An ultra-high-sensitivity, miniaturized Fabry-Perot interferometric (FPI) fiber-optic
microphone (FOM) has been developed, utilizing a silicon cantilever as an acoustic …

A glass-diaphragm microphone was developed based on fiber-optic Fabry-Perot (FP)
interferometry. The glass diaphragm was shaped into a wheel-like structure on a 150-μm …

This paper proposes an improved PGC-Arctan demodulation algorithm for detecting partial
discharge signals in transformers. Compared with the traditional PGC-Arctan algorithm, the …

A silicon cantilever-based fiber-optic acoustic sensor (FOAS) is presented in this work. A
rectangular cantilever is fabricated upon a silicon-on-insulator (SOI) wafer using a micro …

The 2× 2 couplers, as a demodulation core of the fibre optic sensing system, have been
extensively employed in fibre optic sensors for partial discharge (PD) detection of power …

An extrinsic fiber optic Fabry–Perot interferometric (EFPI) ultrasonic sensor based on a
grooved silicon diaphragm for partial discharge (PD) detection has been proposed. The size …

In this paper, sensitivity and response frequency tunable optical fiber acoustic sensor
technology is proposed for the first time, in which a C-shape pedestal mounted diaphragm …