High-sensitivity dynamic distributed pressure sensing with frequency-scanning φ-OTDR

Liqiang Qiu; Dexin Ba; Dengwang Zhou; Qi Chu; Zongda Zhu; Yongkang Dong

doi:10.1364/ol.440318

High-sensitivity dynamic distributed pressure sensing with frequency-scanning φ-OTDR

Liqiang Qiu, Dexin Ba, Dengwang Zhou, Qi Chu, Zongda Zhu, Yongkang Dong

Harbin Institute of Technology

Research output: Contribution to journal › Article › peer-review

9 Scopus citations

Abstract

We propose a high-sensitivity dynamic distributed pressure sensor using frequency-scanning phase-sensitive optical time-domain reflectometry (ϕ-OTDR) in a single-mode fiber (SMF), where an injection locking laser working as both filter and amplifier is used to generate the multi-frequency signals under a double-sideband modulation. The pressure sensitivity of the SMF is measured to be 702.5 MHz/MPa, which is approximately 1000 times larger than that of the Brillouin optical time-domain analysis technique. Subsequently, a dynamic pressure experiment is carried out in the case of rapid pressure relief from 2 to 0 MPa so that a maximum sampling rate of 33.3 kHz for a 25-m SMF is achieved, and the measurement uncertainty of 0.61 kPa for the proposed scheme is demonstrated.

Original language	English
Pages (from-to)	965-968
Number of pages	4
Journal	Optics Letters
Volume	47
Issue number	4
DOIs	https://doi.org/10.1364/ol.440318
State	Published - 15 Feb 2022
Externally published	Yes

Bibliographical note

Publisher Copyright:
© 2022 Optical Society of America

Funding

Funding. National Natural Science Foundation of China (61575052, 62005067, 62075051); National Key Scientific Instrument and Equipment Development Projects of China (2017YFF0108700).

Funders	Funder number
National Natural Science Foundation of China	61575052, 62005067, 62075051
National Key Scientific Instrument and Equipment Development Projects of China	2017YFF0108700

Access to Document

10.1364/ol.440318

Cite this

@article{4248cbe3b17b41f4ae1c71d6dfd040f0,

title = "High-sensitivity dynamic distributed pressure sensing with frequency-scanning φ-OTDR",

abstract = "We propose a high-sensitivity dynamic distributed pressure sensor using frequency-scanning phase-sensitive optical time-domain reflectometry (ϕ-OTDR) in a single-mode fiber (SMF), where an injection locking laser working as both filter and amplifier is used to generate the multi-frequency signals under a double-sideband modulation. The pressure sensitivity of the SMF is measured to be 702.5 MHz/MPa, which is approximately 1000 times larger than that of the Brillouin optical time-domain analysis technique. Subsequently, a dynamic pressure experiment is carried out in the case of rapid pressure relief from 2 to 0 MPa so that a maximum sampling rate of 33.3 kHz for a 25-m SMF is achieved, and the measurement uncertainty of 0.61 kPa for the proposed scheme is demonstrated.",

author = "Liqiang Qiu and Dexin Ba and Dengwang Zhou and Qi Chu and Zongda Zhu and Yongkang Dong",

note = "Publisher Copyright: {\textcopyright} 2022 Optical Society of America",

year = "2022",

month = feb,

day = "15",

doi = "10.1364/ol.440318",

language = "אנגלית",

volume = "47",

pages = "965--968",

journal = "Optics Letters",

issn = "0146-9592",

publisher = "Optica Publishing Group",

number = "4",

}

TY - JOUR

T1 - High-sensitivity dynamic distributed pressure sensing with frequency-scanning φ-OTDR

AU - Qiu, Liqiang

AU - Ba, Dexin

AU - Zhou, Dengwang

AU - Chu, Qi

AU - Zhu, Zongda

AU - Dong, Yongkang

PY - 2022/2/15

Y1 - 2022/2/15

N2 - We propose a high-sensitivity dynamic distributed pressure sensor using frequency-scanning phase-sensitive optical time-domain reflectometry (ϕ-OTDR) in a single-mode fiber (SMF), where an injection locking laser working as both filter and amplifier is used to generate the multi-frequency signals under a double-sideband modulation. The pressure sensitivity of the SMF is measured to be 702.5 MHz/MPa, which is approximately 1000 times larger than that of the Brillouin optical time-domain analysis technique. Subsequently, a dynamic pressure experiment is carried out in the case of rapid pressure relief from 2 to 0 MPa so that a maximum sampling rate of 33.3 kHz for a 25-m SMF is achieved, and the measurement uncertainty of 0.61 kPa for the proposed scheme is demonstrated.

AB - We propose a high-sensitivity dynamic distributed pressure sensor using frequency-scanning phase-sensitive optical time-domain reflectometry (ϕ-OTDR) in a single-mode fiber (SMF), where an injection locking laser working as both filter and amplifier is used to generate the multi-frequency signals under a double-sideband modulation. The pressure sensitivity of the SMF is measured to be 702.5 MHz/MPa, which is approximately 1000 times larger than that of the Brillouin optical time-domain analysis technique. Subsequently, a dynamic pressure experiment is carried out in the case of rapid pressure relief from 2 to 0 MPa so that a maximum sampling rate of 33.3 kHz for a 25-m SMF is achieved, and the measurement uncertainty of 0.61 kPa for the proposed scheme is demonstrated.

UR - http://www.scopus.com/inward/record.url?scp=85124587133&partnerID=8YFLogxK

U2 - 10.1364/ol.440318

DO - 10.1364/ol.440318

M3 - ???researchoutput.researchoutputtypes.contributiontojournal.article???

C2 - 35167570

AN - SCOPUS:85124587133

SN - 0146-9592

VL - 47

SP - 965

EP - 968

JO - Optics Letters

JF - Optics Letters

IS - 4

ER -

High-sensitivity dynamic distributed pressure sensing with frequency-scanning φ-OTDR

Abstract

Bibliographical note

Funding

Access to Document

Other files and links

Fingerprint

Cite this