JPS5569006A - Strain measuring method for optical fiber - Google Patents

Strain measuring method for optical fiber

Info

Publication number
JPS5569006A
JPS5569006A JP14372278A JP14372278A JPS5569006A JP S5569006 A JPS5569006 A JP S5569006A JP 14372278 A JP14372278 A JP 14372278A JP 14372278 A JP14372278 A JP 14372278A JP S5569006 A JPS5569006 A JP S5569006A
Authority
JP
Japan
Prior art keywords
fiber
crt
pulse
light
optical fiber
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP14372278A
Other languages
Japanese (ja)
Inventor
Naoya Uchida
Ryozo Yamauchi
Yasuyuki Sugawara
Toshiaki Kobayashi
Koichi Inada
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Fujikura Ltd
Nippon Telegraph and Telephone Corp
Original Assignee
Fujikura Ltd
Nippon Telegraph and Telephone Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Fujikura Ltd, Nippon Telegraph and Telephone Corp filed Critical Fujikura Ltd
Priority to JP14372278A priority Critical patent/JPS5569006A/en
Publication of JPS5569006A publication Critical patent/JPS5569006A/en
Pending legal-status Critical Current

Links

Landscapes

  • Length Measuring Devices By Optical Means (AREA)

Abstract

PURPOSE: To measure the mechanical strain toward lengthwise of the fiber by tensile strength, by measuring the delay in the propagation time of the light of fiber at cable manufacture.
CONSTITUTION: The pulse from the generator 18 modulates the light of the light source 14, the modulated light reaches the photo detector 16 through the propagation in the fiber 10, the detection output is introduced to CRT 22, the output pulse of the generator 18 is delayed 20 and is given to CRT 22, and stationary pulse is pictured on the CRT. Next, when the fiber 10 is pulled toward lengthwise by using the tension unit 12, the output of the photo detector 16 is delayed in proportion to the elongation of the fiber and the delay in the propagation time can be observed on the CRT.
COPYRIGHT: (C)1980,JPO&Japio
JP14372278A 1978-11-21 1978-11-21 Strain measuring method for optical fiber Pending JPS5569006A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14372278A JPS5569006A (en) 1978-11-21 1978-11-21 Strain measuring method for optical fiber

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14372278A JPS5569006A (en) 1978-11-21 1978-11-21 Strain measuring method for optical fiber

Related Child Applications (1)

Application Number Title Priority Date Filing Date
JP17214984A Division JPS6063403A (en) 1984-08-18 1984-08-18 Strain measuring method of optical fiber

Publications (1)

Publication Number Publication Date
JPS5569006A true JPS5569006A (en) 1980-05-24

Family

ID=15345463

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14372278A Pending JPS5569006A (en) 1978-11-21 1978-11-21 Strain measuring method for optical fiber

Country Status (1)

Country Link
JP (1) JPS5569006A (en)

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5680206A (en) * 1993-08-30 1997-10-21 Siemens Aktiengesellschaft Method and device for testing the properties of at least one splice in at least one optical waveguide
JP2007327955A (en) * 2006-06-05 2007-12-20 Honeywell Internatl Inc Method and system for adjusting sensitivity of optical sensor
KR100803488B1 (en) 2006-02-03 2008-02-14 광주과학기술원 Chromatic dispersion measurement system for higher-order modes in a multimode fiber by use of an interferometer
KR100803473B1 (en) 2006-02-06 2008-02-14 광주과학기술원 Differential mode delay measurement system for a multimode fiber by use of an intermodal interferometer and optical frequency chirping
US8234083B2 (en) 2008-09-22 2012-07-31 Vestas Wind Systems A/S Wind turbine rotor blade comprising an edge-wise bending insensitive strain sensor system
US8310657B2 (en) 2008-03-31 2012-11-13 Vestas Wind Systems A/S Optical transmission strain sensor for wind turbines
US8348611B2 (en) 2008-07-01 2013-01-08 Vestas Wind Systems A/S Wind turbine having a sensor system for detecting deformation in a wind turbine rotor blade and corresponding method
US8712703B2 (en) 2008-12-16 2014-04-29 Vestas Wind Systems A/S Turbulence sensor and blade condition sensor system
US8733164B2 (en) 2010-02-04 2014-05-27 Vestas Wind Systems A/S Wind turbine optical wind sensor
US8814514B2 (en) 2008-07-03 2014-08-26 Vestas Wind Systems A/S Embedded fibre optic sensor for wind turbine components
US9014863B2 (en) 2009-08-06 2015-04-21 Vestas Wind Systems A/S Rotor blade control based on detecting turbulence
CN107246847A (en) * 2017-05-23 2017-10-13 北京大学 Strain sensing system based on flight time detection and sensing method thereof

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5680206A (en) * 1993-08-30 1997-10-21 Siemens Aktiengesellschaft Method and device for testing the properties of at least one splice in at least one optical waveguide
KR100803488B1 (en) 2006-02-03 2008-02-14 광주과학기술원 Chromatic dispersion measurement system for higher-order modes in a multimode fiber by use of an interferometer
KR100803473B1 (en) 2006-02-06 2008-02-14 광주과학기술원 Differential mode delay measurement system for a multimode fiber by use of an intermodal interferometer and optical frequency chirping
JP2007327955A (en) * 2006-06-05 2007-12-20 Honeywell Internatl Inc Method and system for adjusting sensitivity of optical sensor
US8310657B2 (en) 2008-03-31 2012-11-13 Vestas Wind Systems A/S Optical transmission strain sensor for wind turbines
US8348611B2 (en) 2008-07-01 2013-01-08 Vestas Wind Systems A/S Wind turbine having a sensor system for detecting deformation in a wind turbine rotor blade and corresponding method
US8814514B2 (en) 2008-07-03 2014-08-26 Vestas Wind Systems A/S Embedded fibre optic sensor for wind turbine components
US8234083B2 (en) 2008-09-22 2012-07-31 Vestas Wind Systems A/S Wind turbine rotor blade comprising an edge-wise bending insensitive strain sensor system
US8712703B2 (en) 2008-12-16 2014-04-29 Vestas Wind Systems A/S Turbulence sensor and blade condition sensor system
US9014863B2 (en) 2009-08-06 2015-04-21 Vestas Wind Systems A/S Rotor blade control based on detecting turbulence
US8733164B2 (en) 2010-02-04 2014-05-27 Vestas Wind Systems A/S Wind turbine optical wind sensor
CN107246847A (en) * 2017-05-23 2017-10-13 北京大学 Strain sensing system based on flight time detection and sensing method thereof
CN107246847B (en) * 2017-05-23 2019-04-23 北京大学 Strain sensing system based on flight time detection and sensing method thereof

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