Momentum Change Flow Meter With Pressure Compensation Using FBGs

被引：8

作者：

Kirwan, Philip P. ^{[1
]}

Creighton, Darren ^{[2
]}

Costello, Colm ^{[1
]}

O'Brien, Terence P. ^{[2
]}

Moloney, Kenneth W. ^{[1
]}

机构：

[1] Inst Technol Tallaght, Dept Mech Engn, Dublin 24, Ireland

[2] Inst Technol Tallaght, Dept Elect Engn, Dublin 24, Ireland

来源：

IEEE SENSORS JOURNAL | 2016年 / 16卷 / 19期

关键词：

Fiber Bragg grating (FBG); flow measurement; pressure compensation; pipeline; temperature compensation; GRATING SENSORS;

D O I：

10.1109/JSEN.2016.2594135

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

In this paper, a flow measurement device based on measuring deflections caused by the momentum effect of fluid flowing around a pipe elbow is presented. The movement induced on a cantilever arm as a result of this momentum change is measured using a fiber Bragg grating (FBG) optical sensor. The measured response of the FBG was found to be highly correlated to the flow rate in the system. Temperature compensation of the FBG strain measurement was achieved using a second reference FBG. The effects of static pressure were compensated for with the addition of a dead leg bellows. It has been demonstrated that this flow sensor can effectively measure flow rate independently of both static pressure and temperature variations.

引用

页码：7061 / 7064

页数：4

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