Development of a Wearable Optoelectronic Pressure Sensor Based on the Bending Loss of Plastic Optical Fiber and Polydimethylsiloxane

Romero, Alberto Alonso; Amouzou, Koffi Novignon; Richard-Denis, Andréane; Mac-Thiong, Jean-Marc; Petit, Yvan; Lina, Jean‐Marc; Ung, Bora

doi:10.1364/sensors.2022.stu4c.3

Cited by 3 publications

(4 citation statements)

References 3 publications

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“…光纤传感器(optical fibre sensor, OFS)通过观察光纤变形引起的光强衰减或波长变化获得压力数据. 光学压力传感器是最著名的基于OFS的传感器 [47] , 其使用光学传感技术, 当光纤弯曲时, 光会偏转, 并且由于色散而损失一些能量, 光损失量与传感器的曲率或弯曲成正比, 这种光强度的变化可以用光电探测器测量, 从而根据形变计算施加的压力. 光纤传感器具有抗电磁干扰、灵敏度高 [48] 、重量轻等特点 [49] .…”

Section: 光电式柔性压力传感器unclassified

Research progress of the plantar pressure monitoring system for gait analysis

Xu,

Sun,

Fang

2023

Chin. Sci. Bull.

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Section: 光电式柔性压力传感器unclassified

Research progress of the plantar pressure monitoring system for gait analysis

Xu,

Sun,

Fang

2023

Chin. Sci. Bull.

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“…Nowadays, temperature sensors, pressure sensors, and vibration sensors with small volumes are on the market. They are embedded in the measured body to achieve its function without affecting the characteristics of the measured object [2][3][4]. In addition, some new materials with perception and conversion functions have been developed, for example, optical fiber sensing materials, stretchable materials, and piezoelectric ceramics [5,6].…”

Section: Introductionmentioning

confidence: 99%

Self-Sensing Electromechanical System Integrated with the Embedded Displacement Sensor

Wang,

Liu,

et al. 2024

Sensors

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Conventionally, the electromechanical system requires the installation of auxiliary displacement sensors and only the amount on the drive part and motion end, which increases volume, cost, and measurement error in the system. This paper presents an integrated measurement method with a sensing head, which takes the equal division characteristics of mechanical structures as part of the sensor, thus, the so-called self-sensing system. Moreover, the displacement is measured by counting the time pulses. The sensing head is integrated with the entire electromechanical system, including the driving, transmitting, and moving parts. Thus, the integration of the sensing part is greatly improved. Taking the rotary table as a special example, and the sensing head embedded into each part of the system, displacement information is obtained by the common processing system and fused by the adaptive weighted average method. The results of the experiment show that the fusion precision of each component is higher than only the motor position information as the feedback. The proposed method is a practical self-sensing technology with significant volume reduction and intelligent control benefits in the industry, especially suitable for extremely small and narrow spaces.

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“…Among the systems dedicated to measuring pressure are optical devices that use a membrane. A description of several examples of these are described in references [ 4 , 5 ]. The first one works on a polydimethyl siloxane (PDMS) pad with 8 mm thickness.…”

Section: Introductionmentioning

confidence: 99%

“…Among the systems dedicated to measuring pressure are optical devices that use a membrane. A description of several examples of these are described in references [4,5].…”

Section: Introductionmentioning

confidence: 99%

Fabry–Perot Interferometer Used to Measure Very Low Static Pressure Measurements

Calixto

Zitzumbo²,

Hernández

2023

Sensors

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This paper describes the use of an optical instrument, the Fabry–Perot interferometer, adapted to measure very low pressures. The interferometer consists of two high-reflectance flat mirrors placed one in front of another. In addition, a metallic chamber contains air or a gas. In one of the faces of the chamber, a flexible thin silicone membrane is attached and, over it, one of the mirrors is glued. The other mirror rests in a fixed mechanical mounting. Light crosses both mirrors and, when it leaves them, forms an interference pattern consisting of concentric circular fringes. When the pressure is increased/decreased within the chamber, a displacement of the fringes is observed due to the movement of the glued mirror. By measuring the fringe displacement and knowing the pressure, a calibration plot can be made. Minimum pressure measurements of about tens of Pascals were achieved.

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Development of a Wearable Optoelectronic Pressure Sensor Based on the Bending Loss of Plastic Optical Fiber and Polydimethylsiloxane

Abstract: We designed and demonstrated a PDMS-based flexible pressure sensor based on plastic optical fibers for measuring pressures up to 3820 mmHg with good repeatability. Its potential applications include wearable sensors for prevention of pressure injuries.

Cited by 3 publications

References 3 publications

Research progress of the plantar pressure monitoring system for gait analysis

Research progress of the plantar pressure monitoring system for gait analysis

Self-Sensing Electromechanical System Integrated with the Embedded Displacement Sensor

Fabry–Perot Interferometer Used to Measure Very Low Static Pressure Measurements

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