Gas sensors fabricated with nanowires as the detecting elements are powerful due to their
many improved characteristics such as high surface-to-volume ratios, ultrasensitivity, higher …

A photonic crystal fiber (PCF) having hybrid structure cladding with an octagonal core has
been introduced for use in liquid (petrochemical) sensing. Mathematical analysis has been …

Natural gas pipeline leaks can lead to serious and dangerous accidents that can cause
great losses of life and property. Therefore, detecting natural gas pipeline leaks has always …

Leakage is the most common cause of natural gas pipeline accidents. This work was
devoted to natural gas pipeline leakage detection, which is based on detecting negative …

Methods that more quickly locate leakages in natural gas pipelines are urgently required. In
this paper, an improved negative pressure wave method based on FBG based strain …

We report a chemical vapor sensor in which polymer swelling, upon analyte absorption, is
used to deform an on-chip silicon Fabry–Perot interferometer (FPI). The magnitude of the …

The Internet of Things (IoT) aims to address important challenges in our environment,
industries, cities, homes and society by collecting, integrating and analysing data from …

Distributed fiber optic sensors (DFOSs) are viewed as a promising technology for efficient,
cost-effective, and nonintrusive real-time monitoring for a variety of applications. The …

We present a technique for liquid leak detection in which ultrasonic and optical waves are
introduced into a fiber simultaneously. The system is based on an ultrasonic technique using …

摘要快速发现并定位管道泄漏对管道运输的安全至关重要, 开发永久的, 分布式,
实时在线的管道检测传感系统是管道安全检测的重要目标. 光纤传感技术具有体积小, 灵敏度高 …