Science and Engineer Importance to Singapore

Singapore has boosted its water supply through water-recycling and also increased its land area by reclaiming land, all feats accomplished by engineers. And engineering will continue to be important for Singapore's future, as the country works towards becoming a smart nation and overcoming its lack of resources
Prime Minister Lee Hsien Loong
(50th anniversary celebration of the IES)

Wednesday, April 15, 2020

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Opinion: Updates on Distributed Fibre Sensing (DFS)

Updated the page on Distributed Fibre Sensing (DFS) with some inputs from an expert in the field . Distributed Temperature Sensing (DTS) and Distributed Acoustic Sensing (DAS) are both pretty off the shelves products 🤓


DFS is the short form for distributed fibre sensing (or distributed fibre optics sensor). It is the ultra long sensing distance type of fiber optic sensors. Most of the time ordinary optical fiber (single mode fiber) may be used to sense for heat changes in existing infrastructure such as smart nation applications. Distributed Temperature Sensing (DTS) systems are the most commercial available DFS system in the market today. Their typical sensing spatial resolution is 1 meter with 1 degree Celsius accuracy in very ideal conditions. Wealthy end user such as those in oil and gas industry use Distributed Acoustic Sensing (DAS) system for acoustic sensing. In practical use cases, DAS are greatly affected by environment (wind, thunder, etc.) and human activities (machinery alike disturbance, false intrusion, etc.) if present.
#limjunlong #dfs #das #dts i2r dfs

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