fiber optic sensing system Articles

  • Assessment of detection limits of fiber-optic distributed temperature sensing for detection of illicit connections

    Distributed temperature sensing (DTS) with fiber-optic cables is a powerful tool to detect illicit connections in storm sewer systems. High-frequency temperature measurements along the in-sewer cable create a detailed representation of temperature anomalies due to illicit discharges. The detection limits of the monitoring equipment itself are well-known, but there is little information ...

    By IWA Publishing

  • Ping-Ping, What’s That Sound? Acoustic Fiber Optic Technology Helps Identify Problematic Water Mains

    With the deteriorating state of many aging water mains found in cities across North America, urbanites are frequently witnessing unexpected plumes of water erupt as man-made geysers in their own metropolitan backyards. While natural geysers are awe inspiring, urban geysers are much less so, due to their destruction to property, roads and the environment. Because an uninterrupted water flow is ...

    By Pure Technologies

  • Monitoring ecosystem optical properties with the UniSpec-SC

    Understanding patterns of ecosystem properties is important if we are to effectively monitor ecosystem change due to a variety of reasons (e.g. global changes, human management). Remote sensing provides a great tool for monitoring the earth's surface at different temporal and spatial scales. Patterns of vegetation and biodiversity dynamics are important ecosystem properties, with strong links to ...

    By PP Systems

  • Spatial and temporal sampling of ecosystem optical properties with the UniSpec-DC

    Satellite sensors (e.g. MODIS) provide large spatial patterns with regional or global coverage (Chen, 1999). However, the coarse resolution of satellite sensors are sometimes problematic, particularly for patchy landscapes (Turner et al., 2003). To properly validate and interpret satellite imagery, additional ground remotely sensed and biophysical data are needed. The UniSpec-DC (PP Systems, ...

    By PP Systems

  • Rugged high speed rotary imaging Fourier Transform Spectrometer for industrial use

    Abstract Keywords: FTIR, Spectrometer, Imaging, Fourier Transform, interferometer A new rugged rotary Fourier Transform Spectrometer (FTS) has been developed. It can be used for environmental remote sensing and monitoring of chemical processes. Both single pixel and mosaic imaging configurations have been built and tested. The continuous rotary scan of the ...

    By D&P Instruments

  • How climate adaptation experts help companies prepare for disaster

    As the planet warms, new careers are starting to emerge In 2008, floods in Thailand forced the temporary closure of four Nike factories, costing the company millions of dollars. In 2012, Hurricane Sandy demolished Verizon’s copper-wire infrastructure on the U.S. eastern seaboard, costing thousands of Verizon customers service and the company $1 billion in repair costs. ...

    By Ensia

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