Cryogen adaptive and integrated differential pressure sensor for level sensing based on an optical Fabry–Perot interferometer

Li, Mengdi; Wang, Shuang; Jiang, Junfeng; Liu, Kun; Yu, Lihong

doi:10.1364/ao.384293

Cited by 5 publications

(3 citation statements)

References 19 publications

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Section: Hierarchically Porous Mofsmentioning

confidence: 99%

“…Using the nonionic surfactant polyvinyl pyrrolidone (PVP) as a template, HP‐Cu‐MOFs with paddle‐wheel structures were successfully fabricated (Figure 5d). [ 73 ] Distinct from the traditional soft template method, which takes advantage of strong interactions between surfactants and MOF precursors, this process is believed that the weak interaction is beneficial to the removal of the template during crystal growth, thus generating more hierarchical pores.…”

Section: Hierarchically Porous Mofsmentioning

confidence: 99%

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Hierarchically Porous Metal–Organic Frameworks: Synthetic Strategies and Applications

et al. 2022

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Metal-organic frameworks (MOFs), assemblies comprised of inorganic nodes (metal ions or clusters) and organic linkers, have attracted widespread interest over the past two decades. [1][2][3][4][5] Different from various classical porous materials, such as zeolite, porous silica, and carbon, MOFs have unique morphological features including high surface areas, ordered crystalline structures, and adjustable pore environments, which enable flexibility in the design of customized configurations. [6][7][8][9] Specifically, by the thoughtful selection of metal ions/clusters and organic ligands/linkers, and using proper synthetic strategies or post-synthetic modifications, it is possible to create custom-designed MOF frameworks that have desired topological structures, pore shapes and sizes, and chemical affinities tailored to specific tasks. Therefore, MOFs have emerged as a new class of multifunctional crystalline porous materials that display outstanding performances in a variety of applications in the mature fields of heterogeneous catalysis, [10][11][12][13][14][15][16] water remediation, [17][18][19] gas storage and separation, [20,21] and also in relatively new fields such as biotechnology, [22] energy storage, [23] and sensing. [24] MOFs with diverse structural topologies and permanent porosities are among the most fascinating classes of materials from both science and engineering perspectives. [25][26][27] Most MOFs reported to date are microporous with pore sizes smaller than 2 nm. The numerous micropores give MOFs high specific surface areas and serve as sites to stabilize or heterogenize small molecules. [28,29] However, despite possessing these unique and advantageous features, traditional microporous MOFs are limited by the small apertures of the pores which inherently prohibits their participation in binding, diffusion, and transfer of large molecules that restricts applications especially. [30][31][32] Therefore, the ability to transform the pore sizes of MOFs to a larger regime including mesopores (2-50 nm) or even macropores (>50 nm) is highly desirable. Consequently, a significant number of studies have been carried out to design and prepare hierarchically porous MOFs (HP-MOFs) to meet the increasing and diverse demands.HP-MOFs possess a multiple of porosity ranges, including those with two or all three pore categories to form hierarchical systems with interconnected pores and entirely properties for desired applications. Although there are some special cases, [33,34] most of the mesoporous MOFs are still HP-MOFs, [35,36] because in addition to the mesopores, they also have intrinsic micropores. The development of HP-MOFs has attracted considerable interest because these materials have exceptional advantages

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Section: Hierarchically Porous Mofsmentioning

confidence: 99%

Section: Hierarchically Porous Mofsmentioning

confidence: 99%

Hierarchically Porous Metal–Organic Frameworks: Synthetic Strategies and Applications

et al. 2022

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“…The low-coherence fiber-optic sensors with a Fabry-Pérot cavity are well described in the literature and still explored for new applications and improved performance [24,27]. There are reports about FOSs with Fabry-Pérot cavities made with nanosecond or femtosecond lasers [28,29], lateral offset splicing [30], cavities created during the fiber splicing process [31], or using different types of fiber-optic, e.g.…”

Section: Introductionmentioning

confidence: 99%

Metrology and Measurement Systems

Karpienko,

Marzejon,

Mazikowski

et al. 2021

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Distributed measurement often relies on sensor networks. In this paper, we present the construction of low-coherence fiber-optic Fabry-Pérot sensors connected into a quasi-distributed network. We discuss the mechanism of spectrum modulation in this type of sensor and the constraints of assembly of such sensors in the network. Particular attention was paid to separate the signals from individual sensors which can be achieved by cavity length-based addressing. We designed and built a laboratory model of a temperature sensors network. The employed sensors are low-coherence Fabry-Pérot interferometric sensors in a fiberoptics configuration. The extrinsic sensor cavity utilizes the thermal expansion of ceramics, and the sensors are addressed by the different lengths of the cavities. The obtained test results show that the signal components from each sensor can be successfully separated, and the number of sensors could be expanded depending on the FWHM of the light source.

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High-precision fiber optic liquid level sensor based on fast Fourier amplitude demodulation in a specific range of spectrum

et al. 2022

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Cryogen adaptive and integrated differential pressure sensor for level sensing based on an optical Fabry–Perot interferometer

Cited by 5 publications

References 19 publications

Hierarchically Porous Metal–Organic Frameworks: Synthetic Strategies and Applications

Hierarchically Porous Metal–Organic Frameworks: Synthetic Strategies and Applications

Metrology and Measurement Systems

High-precision fiber optic liquid level sensor based on fast Fourier amplitude demodulation in a specific range of spectrum

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