A simple underground liquid level sensor using FBG

被引：0

作者：

Sengupta, D. ^{[1
]}

Shankar, M. Sai ^{[1
]}

Reddy, P. Saidi ^{[1
]}

Prasad, R. L. N. Sai ^{[1
]}

Srimannarayana, K. ^{[1
]}

机构：

[1] Natl Inst Technol, Dept Phys, Waranagal 506004, India

来源：

OPTICS: PHENOMENA, MATERIALS, DEVICES, AND CHARACTERIZATION: OPTICS 2011: INTERNATIONAL CONFERENCE ON LIGHT | 2011年 / 1391卷

关键词：

Liquid-level measurement; FBG sensor; Diaphragm; hydro static pressure; PRESSURE SENSOR; FIBER;

D O I：

10.1063/1.3643570

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

In this paper a packaged sensor using fiber Bragg grating for under water level measurement is presented. The sensor is configured by fixing one end of a fiber Bragg grating with a diaphragm made up of polymer kept inside a hollow cylinder and the other end to the cylinder. As the level of water increases in the tank hydrostatic pressure at the bottom also increases. The diaphragm used in is to transfer this pressure to the axial strain on the grating. By utilizing the unique diaphragm-based grating packaging method, the level sensing range has been effectively enhanced. The results obtained indicate that this packaged sensor have long range, rugged and can be customized depending on the requirement. The sensitivity of the sensor is 6.057 x 10(-6) per cm within the range 0 to 30cm.

引用

页数：3

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