Gas monitoring in mines and tunnels is the key to ensuring safe production. Nowadays,
optical fiber gas sensors depend on the advantages of nonelectrical signal transmission …

A multiplexing scheme of fiber-optic photoacoustic (PA) gas sensors is demonstrated for
simultaneous detection of multi-point gases. By sharing the PA demodulation device, the …

A high-sensitivity fiber-optic Fabry-Perot (FP) photoacoustic gas detection system with
properties of anti-electromagnetic interference and intrinsically safe was presented for …

A fiber-optic photoacoustic (PA) gas sensor with multiplexed Fabry–Pérot (F–P)
interferometric cantilevers is demonstrated. A compact cylindrical nonresonant PA tube with …

A fiber-optic trace gas sensing system based on photoacoustic (PA) effect of solids is
reported. The modulated laser light absorbed by the gas is incident on a graphite sheet. The …

A fiber-optic Fabry–Perot (FP) vibration/acoustic sensing system based on high-speed
phase demodulation was developed. The demodulation part is mainly composed of a super …

A proof-of-concept gas sensor based on a miniaturized and integrated fiber-optic
photoacoustic detection module was introduced and demonstrated for the purpose of …

Fiber-optic photoacoustic (PA) sensing has important applications in trace gas detection.
The fiber-optic Fabry-Perot acoustic sensor implemented applying a cantilever is a novel …

The development of hydrogen sensors with fast response and reliable stability is the key
challenge for hydrogen leak detection. Fiber-optic sensors are ideal for hydrogen sensors …

The concentration of carbon dioxide (CO 2) is an important indicator for coal mine safety.
Real-time monitoring of CO 2 concentration is of great importance for taking actions in …