Mr. Peng Gong Profile

Peng Gong

at Dalian Univ of Technology

SPIE Involvement:

Author

Publications (1)

This will count as one of your downloads.

You will have access to both the presentation and article (if available).

DOWNLOAD NOW

This content is available for download via your institution's subscription. To access this item, please sign in to your personal account.

Email or Username Forgot your username?

Password Forgot your password?

Show

Keep me signed in

No SPIE account? Create an account

Proceedings Article | 15 April 2011 Paper

Research on the theory of valid sampling points in BOTDR technique

Peng Gong, Jian Guo, Yang Liu, Jie Lu, Xuefeng Zhao

Proceedings Volume 7982, 798208 (2011) https://doi.org/10.1117/12.880270

KEYWORDS: Spatial resolution, Error analysis, Temperature metrology, Optical fibers, Structural health monitoring, 3D surface sensing, Acoustics, 3D imaging standards, Sensors, Analytical research

Read Abstract +

Traditionally, distributed BOTDR technique is applied in the field of the structural heath monitoring (SHM) on the large scale. However, if the sensing length is relatively small, the number of valid sampling points on the sensing fiber will be quite limited. Therefore, how to pick out valid sampling points from a large amount of sampling points becomes a key to apply distributed BOTDR technique into the field of small-scale monitoring successfully. This paper presents the concepts of valid sampling points (VSPs), invalid sampling points (ISPs) and useless sampling points (USPs), proposes SRSI Method to select VSPs, derives the error theory of ISPs and analyzes the experimental data by SRSI Method, Peak Method and the error theory of ISPs in the temperature and strain monitoring tests. In the above tests, different sensing lengths of the fiber or spatial resolutions were set for comparison with each other. The test results show that SRSI Method, which can improve the accuracy of the test results effectively, is the better selecting method of VSPs than Peak Method, and especially, the number of VSPs on the sensing fiber is less, the SRSI Method is better. Meanwhile, the error theory of ISPs gives the error bound and a good explanation of the large errors of Peak Method.

My Library

You currently do not have any folders to save your paper to! Create a new folder below.

Folder Name

Folder Description

View contact details

UPDATE YOUR PROFILE

Is this your profile? Update it now.

Sign into your SPIE.org account

Don’t have a profile and want one?

Create an account on SPIE.org

Access to the requested content is limited to institutions that have purchased or subscribe to SPIE eBooks. You are receiving this notice because your organization may not have SPIE eBooks access.*

*Shibboleth/Open Athens users─please sign in to access your institution's subscriptions.

To obtain this item, you may purchase the complete book in print or electronic format on SPIE.org.

ORGANIZATIONAL
Sign in with credentials provided by your organization.

Organizational Username

Organizational Password

Show/Hide Password

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

;

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available

Members:

Non-members: ADD TO CART

Keywords/Phrases

Search In:

Publication Years