POF sensors - applications in every day's life

Determining Weight of Cargo Onboard Ship by Means of Optical Fibre Technology Draft Reading

“…Figure 8 gives a calibrated curve and indicates the response of the PIN photodiode according to the height of the liquid inside the container and for the water heights (drafts) in the branch of pipeline will be very similar. The results in the case of fresh water and seawater were so similar that these values are represented in a single row [8]. It can therefore be concluded that regardless of the density of water where the ship is sailing the calibration will be the same.…”

“…When the sensing element is an essential part of the fibre, the sensor is called an intrinsic sensor. When the fibre is only used to guide light to and from the sensing element, the arrangement is known as an extrinsic sensor [8]. The physical properties of light such as amplitude, frequency, phase, and polarization passing through the sensing element can be affected by the change in the environment surrounding the sensing part of the sensor [9].…”

“…The calibrated curves in each branch of the pipeline will be the same. As they have a similar device used for measuring liquid levels in tanks the calibrated curve will be similar [8], and it will be shown in Figure 8. Figure 8 gives a calibrated curve and indicates the response of the PIN photodiode according to the height of the liquid inside the container and for the water heights (drafts) in the branch of pipeline will be very similar.…”

A Study on the Implementation of an All-IP Train Communication Network Using Plastic Optical Fiber

“…또한 POF는 고분자 재료로 구성되기 때문에 가볍 고 취급이 용이하며 내진동성이 강하고 구부림에도 강한 내 성을 가지고 있다 [10]. GOF와 비교한 POF의 특성을 요약 하면, (1)절단 및 접속, 취급이 용이하여 유지보수성이 좋으 며, (2)직경이 커서 내구성이 강하고, (3)구축비 및 유지보수 비가 저렴하여 경제성이 높으며, (4)가시광선영역에서 동작 하며 NA(Numerical Aperture) 수치가 높다는 점이다 [11,12]. 최근에는 근거리 통신에서의 Gbps급 대용량 데이터 전송에 있어서도 GOF 대신 POF를 이용하려는 시도가 이루어지고 있으며, 수백미터 이내의 근거리통신에서 1Gbps이상의 데이 터 전송이 가능하다고 보고되어 있다 [13].…”