A High Precision Fiber Optic Fabry–Perot Pressure Sensor Based on AB Epoxy Adhesive Film

Zhang, Yanan; Zhang, Shubin; Gao, Haitao; Xu, Danping; Gao, Zhuozhen; Hou, Zheyu; Shen, Jian; Li, Chaoyang

doi:10.3390/photonics8120581

Cited by 13 publications

(7 citation statements)

References 34 publications

(39 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Being limited by our lab conditions, the temperature responses for different pressures have not been tested. However, it is believed that the temperature sensitivity and the temperature cross-sensitivity for different pressure both increase with the increase of pressure due to the reduction of the F-P cavity length [23].In addition, in our previous work [24], it can be concluded that humidity has a minor influence on the proposed epoxy-based FPI sensor in a specific range of humidity changes. In order to further improve the sensitivity on the basis of the epoxy-filled FPI sensor, an optimized pressure sensor based on the Vernier effect formed by separated cascaded FPIs, is proposed and experimentally demonstrated.…”

Section: B Pressure Sensor With Separated Cascaded Fpi Structures Bas...mentioning

confidence: 84%

A High-Sensitivity Fiber-Optic Fabry-Perot Gas Pressure Sensor With Epoxy Resin Adhesive

Gao

Hou

et al. 2022

IEEE Sensors J.

View full text Add to dashboard Cite

A high-sensitivity fiber-optic gas pressure sensor based on a Fabry-Perot interferometer filled with epoxy resin adhesive is proposed. The factors of affecting the pressure sensitivity are theoretically analyzed and verified experimentally. In our experiment, the pressure sensitivity of the epoxy-filled sensor with the thinnest diaphragm thickness of 6.61 μm corresponding to the cavity length of 65.45 um is -530.17 pm/kPa from 200 to 300 kPa. The sensitivity of the proposed pressure sensor with the shortest cavity length of 90.43 μm corresponding to the film thickness of 10.65 um is -378.18 pm/kPa from 200 to 300 kPa. To further improve the sensitivity, the proposed pressure sensor is optimized, which consists of two cascaded Fabry-Perot interferometers separated by a long section of single-mode fiber to form Vernier effect. Such a pressure sensor based on the epoxy-filled Fabry-Perot interferometer and the Vernier effect obtains a high sensitivity of 2.526 nm/kPa in the local measurement range of 233 to 259 kPa and a low detection limit of 0.00892 kPa. With the advantages of high sensitivity, compact structure and simple fabrication, the proposed pressure sensor has potential applications in the biomedical field and ocean exploration.

show abstract

Section: B Pressure Sensor With Separated Cascaded Fpi Structures Bas...mentioning

confidence: 84%

A High-Sensitivity Fiber-Optic Fabry-Perot Gas Pressure Sensor With Epoxy Resin Adhesive

Gao

Hou

et al. 2022

IEEE Sensors J.

View full text Add to dashboard Cite

show abstract

“…Optical sensors have been developing rapidly in recent years for their size, cost, networking and multi-parameter sensing but with disadvantages of low mechanical strength [ 51 ]. In Figure 5 a, the reflective index of polymer coating [ 72 , 73 , 74 ] on NCF-AR structure was temperature-sensitive. The seawater salinity is kept at 0‰ and the temperature increases from 15 °C to 35 °C, the transmission signals of the NCF-AR structure have a slope of −4.628 nm/°C in the range of 15 °C to 25 °C.…”

Section: Temperature Sensorsmentioning

confidence: 99%

CTD Sensors for Ocean Investigation Including State of Art and Commercially Available

Xiao

Zhang

Liu

et al. 2023

Sensors

View full text Add to dashboard Cite

Over 70% of the earth’s surface is covered by oceans; globally, oceans provides a huge source of wealth to humans. In the literature, several sensors have been developed to investigate oceans. Electrical conductivity temperature depth (CTD) sensors were used frequently and extensively. Long-term accurate CTD data is important for the study and utilization of oceans, e.g., for weather forecasting, ecological evolution, fishery, and shipping. Several kinds of CTD sensors based on electrics, optical, acoustic wave and radio waves have been developed. CTD sensors are often utilized by measuring electrical signals. The latest progress of CTD sensors will be presented in order of performance. The principles, structure, materials and properties of many CTD sensors were discussed in detail. The commercially available CTD sensors were involved and their respective performances were compared. Some possible development directions of CTD sensors for ocean investigation are proposed.

show abstract

“…One of the main challenges with fiber optic sensors, especially for strain measurement, is the necessity to guarantee a good adhesion and mechanical match between the sensitive element and the object under test [10]- [13]. The role of epoxy-based adhesives for structural health monitoring is analyzed in [14]- [17], where different adhesives are compared.…”

Section: Introductionmentioning

confidence: 99%

Three-Dimensional-Printed Sensing Samples Embedding Fiber Bragg Gratings: Metrological Evaluation of Different Sample Materials and Fiber Coatings

Paloschi

Polimadei

Korganbayev

et al. 2023

IEEE Trans. Instrum. Meas.

View full text Add to dashboard Cite

Embedding optical fibers with fiber Bragg grating (FBG) sensors in 3D-printed samples can effectively facilitate the systematic use of smart materials in many fields such as civil, biomedical and soft robotics applications. The aim of the study is to analyze different combinations of filament materials and FBG coatings, and to assess their metrological characteristics. Eighteen samples are fabricated and tested under different mechanical and thermal conditions. The repeated tests allow to perform an evaluation of the measurement repeatability for each sample, along with an analysis of the samples sensitivity. The filaments employed are acrylonitrile butadiene styrene (ABS), polylactic acid (PLA), and thermoplastic polyurethane (TPU). The fiber coatings are acrylate, Ormocer® and polyimide. The fiber coating has no significative influence on the performance of the sensors. The tests for temperature sensitivity highlight a good performance of ABS (116 pm/°C) and TPU samples (32 pm/°C) up to 60 °C, whereas the fabricated PLA samples (139 pm/°C for polyimide, 55 pm/°C for acrylate, 14 pm/°C for Ormocer®) cannot be used above 40 °C. The tests for strain sensitivity in axial elongation show an average sensitivity of 3.049 nm/mm for ABS, 1.991 nm/mm for PLA, 3.726 nm/mm for TPU. The bending tests show that all specimens materials have different sensitivity to elongation (2.994 nm/mm for ABS, 0.668 nm/mm for PLA, 0.149 nm/mm for TPU). Only for acrylate in PLA samples an effective difference for bending sensitivity resulted (1.241 nm/mm for the acrylate coating vs 2.366 nm/mm for the other coatings).

show abstract

A High Precision Fiber Optic Fabry–Perot Pressure Sensor Based on AB Epoxy Adhesive Film

Cited by 13 publications

References 34 publications

A High-Sensitivity Fiber-Optic Fabry-Perot Gas Pressure Sensor With Epoxy Resin Adhesive

A High-Sensitivity Fiber-Optic Fabry-Perot Gas Pressure Sensor With Epoxy Resin Adhesive

CTD Sensors for Ocean Investigation Including State of Art and Commercially Available

Three-Dimensional-Printed Sensing Samples Embedding Fiber Bragg Gratings: Metrological Evaluation of Different Sample Materials and Fiber Coatings

Contact Info

Product

Resources

About