Ultrahigh temperature and strain hybrid integrated sensor system based on Raman and femtosecond FBG inscription in a multimode gold-coated fiber

Laarossi, Ismail; Roldán-Varona, Pablo; Quintela, M. A.; Rodŕıguez-Cobo, Luis; López‐Higuera, José Miguel

doi:10.1364/oe.27.037122

Cited by 13 publications

(10 citation statements)

References 17 publications

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“…Many kinds of electrical and optical transduction mechanisms, such as fiber Bragg grating (FBG), [ 36,37 ] Raman shift, [ 38,39 ] and triboelectricity, [ 40,41 ] have been adopted to implement strain sensors but require sophisticated measurement equipment and are difficult to be used for wearable hand gesture recognition systems. Many of the developed flexible strain sensors are based on stretchable resistive or capacitive structures.…”

Section: Device Designmentioning

confidence: 99%

Flexible Strain Sensors for Wearable Hand Gesture Recognition: From Devices to Systems

Chen

et al. 2022

Advanced Intelligent Systems

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Hand gesture recognition has attracted extensive research interest, as an essential approach for human−machine interaction. The development of flexible strain sensors offers the possibility of directly measuring the finger motion behaviors for accurate and cost‐effective hand gesture recognition, by placing the sensors on the fingers or integrating them on data gloves. Herein, the operation mechanisms of various flexible strain sensor designs are introduced first. Progresses on related materials and device structures to achieve the demanded figure of merits for flexible strain sensors are then reviewed. In addition to continuous performance optimization of the flexible strain sensor devices, the development of system‐level algorithms is shown to be important for not only recognition functions but also for suppression of nonidealities of the sensor devices, which are difficult to be addressed at device and material level.

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Section: Device Designmentioning

confidence: 99%

Flexible Strain Sensors for Wearable Hand Gesture Recognition: From Devices to Systems

Chen

et al. 2022

Advanced Intelligent Systems

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“…Their exceptional resistance to high temperatures and strain up to approximately 4144 𝜇𝜀 was demonstrated. The ROTDR (Raman Optical Time Domain Reflectometry) measurements were calibrated to correct the dynamic variations with the temperature of optical losses in the gold-coated fiber [ 52 , 53 , 54 ].…”

Section: Ten Significant Cases Of Photonic Sensorsmentioning

confidence: 99%

“…Acquiring an early indication of structural or mechanical problems allows operators to better plan for maintenance, possibly operate the machine in a de-rated condition rather than taking the unit off-line, or in the case of an emergency, shut the machine down to avoid further damage. To build an accurate Structural Health Monitoring (SHM) system in the wind turbine, photonic sensors based on fiber technology installed on/in the blades are essential [ 41 , 42 , 43 , 44 , 45 , 46 , 47 , 48 , 49 , 50 , 51 , 52 , 53 , 54 , 55 ]. Even though several fiber optic transducer technologies are being employed to constitute the “nerve” part of the smart fiber optic sensor system, here, we will only briefly mention one based on FBGs ( Figure 8 ).…”

Section: Ten Significant Cases Of Photonic Sensorsmentioning

confidence: 99%

Sensing Using Light: A Key Area of Sensors

López‐Higuera

2021

Sensors

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This invited featured paper offers a Doctrinal Conception of sensing using Light (SuL) as an “umbrella” in which any sensing approach using Light Sciences and Technologies can be easily included. The key requirements of a sensing system will be quickly introduced by using a bottom-up methodology. Thanks to this, it will be possible to get a general conception of a sensor using Light techniques and know some related issues, such as its main constituted parts and types. The case in which smartness is conferred to the device is also considered. A quick “flight” over 10 significant cases using different principles, techniques, and technologies to detect diverse measurands in various sector applications is offered to illustrate this general concept. After reading this paper, any sensing approach using Light Sciences and Technologies may be easily included under the umbrella: sensing using Light or photonic sensors (PS).

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“…In 2019, Wu Hao et al [25] used gold-plated grating and quartz grating cascades to realize the temperature and strain sensing measurements; the temperature response sensitivity was 26.5 pm/ • C in the range of 30-70 • C, and the strain response sensitivity was 1.19 pm/µε up to 400 µε. In the same year, I. Laarossi et al [26] used gold-plated gratings to measure the temperature and strain; the measurement response sensitivity was 1.10 pm/µε and 3.7 pm/ • C, respectively. In 2021, Yanjun Zhang et al [27] conducted research on goldplated FBG; the sensitization characteristics of the sensor were theoretically analyzed, and the response characteristics of the sensor were studied.…”

Section: Introductionmentioning

confidence: 99%

Research on the High Temperature and High Pressure Gold-Plated Fiber Grating Dual-Parameter Sensing Measurement System

et al. 2022

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In electrohydrostatic drive actuators, there is a demand for temperature and pressure monitoring in complex environments. Fiber Bragg grating (FBG) has become a promising sensor for measuring temperature and pressure. However, there is a cross-sensitivity between temperature and pressure. A gold-plated FBG is proposed and manufactured, and an FBG is used as a reference grating to form a parallel all-fiber sensing system, which can realize the simultaneous measurement of pressure and temperature. Based on the simulation software, the mechanical distribution of the pressure diaphragm is analyzed, and the fixation scheme of the sensor is determined. Using the demodulator to monitor the changes in the reflectance spectrum in real-time, the pressure and ambient temperature applied to the sensor are measured. The experimental results show that the temperature sensitivity of gold-plated FBG is 3 times that of quartz FBG, which can effectively distinguish the temperature changes. The pressure response sensitivity of gold-plated FBG is 0.3 nm/MPa, which is same as the quartz FBG. Through the sensitivity matrix equation, the temperature and pressure dual-parameter sensing measurement is realized. The accuracy of the temperature and pressure measurement is 97.7% and 99.0%, and the corresponding response rates are 2.7 ms/°C and 2 ms/MPa, respectively. The sensor has a simple structure and high sensitivity, and it is promising to be applied in health monitoring in complex environments with a high temperature and high pressure.

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Ultrahigh temperature and strain hybrid integrated sensor system based on Raman and femtosecond FBG inscription in a multimode gold-coated fiber

Cited by 13 publications

References 17 publications

Flexible Strain Sensors for Wearable Hand Gesture Recognition: From Devices to Systems

Flexible Strain Sensors for Wearable Hand Gesture Recognition: From Devices to Systems

Sensing Using Light: A Key Area of Sensors

Research on the High Temperature and High Pressure Gold-Plated Fiber Grating Dual-Parameter Sensing Measurement System

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