An in-line optical fiber analysis system for well crude oil

2005 ◽  
Author(s):  
Haifeng Xuan ◽  
Yanbiao Liao ◽  
Ming Zhang ◽  
Shurong Lai ◽  
Shuming Liu
Keyword(s):  
Optical Fiber ◽  
Crude Oil ◽  
Fiber Analysis ◽  
Analysis System

Performance analysis of an in-line optical fiber analysis system for well crude oil

2007 ◽  
Author(s):  
Dehuan Meng ◽  
Haifeng Xuan ◽  
Min Zhang ◽  
Shurong Lai ◽  
Yanbiao Liao
Keyword(s):  
Performance Analysis ◽  
Optical Fiber ◽  
Crude Oil ◽  
Fiber Analysis ◽  
Analysis System

Secondary Development of DiTeSt-STA202 Based on Delphi and Access

2010 ◽  
Vol 36 ◽  
pp. 103-108
Author(s):  
Kuan Fang He ◽  
Ping Yu Zhu ◽  
Xue Jun Li ◽  
D.M. Xiao
Keyword(s):  
Optical Fiber ◽  
Data Processing ◽  
Data Storage ◽  
Secondary Development ◽  
Typical Application ◽  
Sensing Technology ◽  
Optical Fiber Sensing ◽  
Analysis System ◽  
Distributed Optical Fiber ◽  
User Friendly

Distributed optical fiber sensing technology in the dam safety monitoring has been applied. The most typical application is the Swiss distributed optical fiber DiTeSt-STA202 analyzer. The instrument can simultaneously measure the distribution of thousands of points in a fiber strian and temperature, and it is suitable for measurement of objects up to several kilometers, but it’s functions limit to the data acquisition and the most primitive conversion of the strain and temperature without the deeper data processing functions, and the interface is less of user-friendly nature and poor adaptability. In this paper, The secondary development of DiTeSt-STA202 is done by Delphi and ADO technology based on analysis of the data storage types and formats. The data processing and analysis system is achieved in an efficient and accurate way.

Contact dynamics recording and analysis system using an optical fiber sensor approach

1997 ◽  
Vol 68 (9) ◽  
pp. 3583-3589 ◽  
Author(s):  
F. Anghel ◽  
D. Pavelescu ◽  
K. T. V. Grattan ◽  
A. W. Palmer
Keyword(s):  
Optical Fiber ◽  
Optical Fiber Sensor ◽  
Contact Dynamics ◽  
Fiber Sensor ◽  
Analysis System

scholarly journals Improved time-resolved acousto-optic technique for optical fiber analysis of axial non-uniformities by using edge interrogation

2015 ◽  
Vol 23 (6) ◽  
pp. 7345 ◽  
Author(s):  
E. P. Alcusa-Sáez ◽  
A. Díez ◽  
M. González-Herráez ◽  
M. V. Andrés
Keyword(s):  
Optical Fiber ◽  
Time Resolved ◽  
Fiber Analysis

Fracture Probability Analysis of Crack Occurrence on a Floating Roof due to Thermal Stress

2012 ◽  
Vol 622-623 ◽  
pp. 1539-1544
Author(s):  
Yoshihiro Hirokawa ◽  
Haruki Nishi ◽  
Minoru Yamada ◽  
Shinsaku Zama ◽  
Ken Hatayama
Keyword(s):  
Thermal Stress ◽  
Optical Fiber ◽  
Crude Oil ◽  
Fracture Probability ◽  
Probability Analysis ◽  
Oil Refinery ◽  
Temperature Changes ◽  
Southern Japan ◽  
Oil Tank

Several cracks were found on some actual floating roofs of a crude oil tank in the oil refinery located in southern Japan. We assumed that one of reasons would be due to thermal stress caused by temperature changes during the day. In order to consider whether the thermal stress could the cause damages on the floating roof, strain and temperature were measured on the actual floating roof by using optical fiber gauges. Furthermore, fracture possibility due to thermal stress was calculated to discuss whether thermal stress could cause fracture or not. As a result, the probability showed that thermal stresswasnot enough to cause fracture. Anotherexternal factor such as Typhoon could be related.

Crack Propagation Monitoring of DCB Composite Specimens Using Distributed Optical Fiber Sensor

2010 ◽  
Vol 654-656 ◽  
pp. 2592-2595 ◽  
Author(s):  
Huk Jin Yoon ◽  
Kwang Yong Song ◽  
Jung Seok Kim ◽  
Kwang Bok Shin ◽  
Seung Chul Kim
Keyword(s):  
Optical Fiber ◽  
Crack Propagation ◽  
Strain Distribution ◽  
Field Data ◽  
Optical Fiber Sensor ◽  
Optical Correlation ◽  
Distributed Optical Fiber Sensor ◽  
Tip Position ◽  
Analysis System ◽  
Distributed Optical Fiber

In the conventional DCB test, test is usually conducted by observing the crack growth with a microscope, in this paper, new technique is tried to monitor the crack propagation in real time using optical fiber attached in the Kevlar/epoxy specimen. Crack tip position was monitored using strain distribution field data from the optical fiber and compared with the microscope data. BOCDA (Brillouin Optical Correlation Domain Analysis) system was used to measure the strain distribution of the optical fiber and spatial resolution, strain accuracy were about 9mm, ±20με each.

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