Fiber-optic sensing system: Overview, development and deployment in flight at NASA

Chan, Hon Man; Parker, Allen R.; Piazza, Anthony; Richards, W. Lance

doi:10.1109/avfop.2015.7356646

Cited by 7 publications

(3 citation statements)

References 1 publication

(1 reference statement)

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“…The interdigital electrode is designed as a piezoresistive sensor for improved integration and sensitivity, which is further enhanced using a micro-structured piezoresistive film that covers the interdigital electrode (as shown in fig. S1A) (39). The piezoresistive sensor exhibits an extremely high initial resistance (>100 megohm) and a low resistance (8 kilohm) under 600-kPa pressure (as depicted in fig.…”

Section: Design and Performance Of The Pressure Tsmmentioning

confidence: 99%

“…The accurate measurement of wing position, displacement, and deformation during flight and its response to wing gusts and atmospheric turbulence is critical for wing shape control and to avoid loss of flight control (45). The fiber optic sensing system (FOSS) developed by NASA (39,42) has shown great potential in wing monitoring due to its lightweight, ease of installation, and dense measurement points. The working principle of FOSS can be found in text S2.…”

Section: Airplane Wing Strain Monitoring Using the Strain Tsmmentioning

confidence: 99%

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One-wire reconfigurable and damage-tolerant sensor matrix inspired by the auditory tonotopy

Long,

Lin,

et al. 2023

Sci. Adv.

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Sensor matrices are essential in various fields including robotics, aviation, health care, and industrial machinery. However, conventional sensor matrix systems often face challenges such as limited reconfigurability, complex wiring, and poor robustness. To address these issues, we introduce a one-wire reconfigurable sensor matrix that is capable of conforming to three-dimensional curved surfaces and resistant to cross-talk and fractures. Our frequency-located technology, inspired by the auditory tonotopy, reduces the number of output wires from row × column to a single wire by superimposing the signals of all sensor units with unique frequency identities. The sensor units are connected through a shared redundant network, giving great freedom for reconfiguration and facilitating quick repairs. The one-wire frequency-located technology is demonstrated in two applications—a pressure sensor matrix and a pressure-temperature multimodal sensor matrix. In addition, we also show its potential in monitoring strain distribution in an airplane wing, emphasizing its advantages in simplified wiring and improved robustness.

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Section: Design and Performance Of The Pressure Tsmmentioning

confidence: 99%

Section: Airplane Wing Strain Monitoring Using the Strain Tsmmentioning

confidence: 99%

One-wire reconfigurable and damage-tolerant sensor matrix inspired by the auditory tonotopy

Long,

Lin,

et al. 2023

Sci. Adv.

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“…Optical fibers have attracted tremendous attention ever since the first successful fiber manufacturing process was demonstrated in the 1970s. With its advantage of exhibiting high sensitivities to external physical C such as temperature, strain, acoustic vibration, current, pressure, etc., and low transmission losses support remote sensing with minimal signal degradation, it is used in many fields as a sensor [1][2][3]. Optical fiber sensors can be divided into pointwise sensors and distributed sensing in the application.…”

Section: Introductionmentioning

confidence: 99%

Research on scattering enhancement characteristics of an ultralong adiabatic tapered fiber

Tan,

Duan,

Tian

et al. 2023

Advanced Sensor Systems and Applications XIII

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An ultra-long adiabatic tapered single-mode fiber is proposed to enhance the received scattered light in the fiber without additional loss. By controlling the radius and refractive index distribution on the length of the fiber, the backscattering coefficient of the scattered light is increased, and the signal-to-noise ratio of the scattered light is improved while the long distance sensing length is maintained. By analyzing and optimizing the length, radius and refractive index distribution of tapered optical fibers, scattering enhancement of 7dB can be achieved at 45km. Ultralong adiabatic tapered single-mode fiber can realize Rayleigh backscattered light enhancement of equal signal-to-noise ratio at each position, which can be used to improve the signal-to-noise ratio and measurement range of fiber sensing system based on Rayleigh backscattered, and further promote the application of fiber sensing technology for ultra-long distance sensing.

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Monitoring multi-axial vibrations of flexible rockets using sensor-instrumented reference strain structures

Tsushima

Gutiérrez

et al. 2017

Aerospace Science and Technology

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Fiber-optic sensing system: Overview, development and deployment in flight at NASA

Cited by 7 publications

References 1 publication

One-wire reconfigurable and damage-tolerant sensor matrix inspired by the auditory tonotopy

One-wire reconfigurable and damage-tolerant sensor matrix inspired by the auditory tonotopy

Research on scattering enhancement characteristics of an ultralong adiabatic tapered fiber

Monitoring multi-axial vibrations of flexible rockets using sensor-instrumented reference strain structures

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