Twin multiplexing strain sensing array based on a low-coherence fiber optic Mach–Zehnder interferometer

Yuan, Libo; Wen, Qingbo; Liu, Chongjie; Jie, Yuxin; Li, Guangxin

doi:10.1016/j.sna.2006.06.066

Cited by 6 publications

(3 citation statements)

References 10 publications

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“…Wan and Leung (2) developed an optical fiber sensor for monitoring mixed-mode cracks in structures. Yuan et al (3) designed a twin multiplexing strain sensing array based on a low-coherence fiber optic Mach-Zehnder interferometer. Most of the results from these research studies are based on the assumption that the optical fiber sensors are perfectly bonded on the host structure, so that the strain from the host structure will be transferred completely to the optical fiber.…”

Section: Introductionmentioning

confidence: 99%

Theoretical Prediction and Experimental Measurement of Embedded Optical Fiber Strain Sensors

2014

Sensors and Materials

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A theoretical prediction of the strain transferred from a host material to an embedded optical fiber was presented to reveal the differential strain between the optical fiber sensor and host material. Experiments using the Mach-Zehnder interferometric-type fiber-optic sensor were conducted to measure the strain in the embedded optical fiber sensor induced by the host structure. Experimental results show that the strain measured in the optical fiber is less than the true strain in the host structure. The percentage of strain in the host structure which actually transferred to the optical fiber is dependent on the length of the embedded optical fiber. The general trend of the strain transformation obtained from the experiments shows that the longer the embedded optical fiber, the greater the strain that is transferred to the optical fiber.

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Section: Introductionmentioning

confidence: 99%

Theoretical Prediction and Experimental Measurement of Embedded Optical Fiber Strain Sensors

2014

Sensors and Materials

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“…One type of fiber sensors are interferometric fiber sensors [4] that can be used to monitor parameters like temperature [5], strain [6] and distributed disturbance [7]. Another type of sensors are FBG-based which encodes the measurands into wavelengths and therefore have better signal quality and ability to multiplex and wavelength domain [8] [9].…”

Section: Introductionmentioning

confidence: 99%

A combined fiber Bragg Grating and interferometric based quasi-distributed sensor network

Abolbashari

Gerges

Farahi

2009

2009 6th International Symposium on High Capacity Optical Networks and Enabling Technologies (HONET)

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A novel combined fiber Bragg grating (FBG) and interferometric based quasi-distributed sensor network is proposed and simulated. The sensor network consists of a series of FBGs used as wavelength selective mirrors and overlapped Michelson interferometers working at different wavelengths in a Sagnac loop make it possible to measure the changes in between the FBGs. The advantage of the system is that it combines the benefit of point measurement with FBG and the high sensitivity of long gauge interferometric sensors. This sensor network can be used to monitor some desired parameters like pressure, humidity and temperature in optical networks.

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“…Recently, it has been widely applied in distributed fiber sensing systems [7][8][9]. Interrogating of multiplexed sensors based on * Corresponding author.…”

Section: Introductionmentioning

confidence: 99%

Optical low-coherence reflectometry for a distributed sensor array of fiber Bragg gratings

Liu

Guan

Liu

et al. 2008

Sensors and Actuators A: Physical

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Twin multiplexing strain sensing array based on a low-coherence fiber optic Mach–Zehnder interferometer

Cited by 6 publications

References 10 publications

Theoretical Prediction and Experimental Measurement of Embedded Optical Fiber Strain Sensors

Theoretical Prediction and Experimental Measurement of Embedded Optical Fiber Strain Sensors

A combined fiber Bragg Grating and interferometric based quasi-distributed sensor network

Optical low-coherence reflectometry for a distributed sensor array of fiber Bragg gratings

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