Detection and formation process of overheated electrical joints due to faulty connections

Zhou, Xin; Schoepf, T.J.

doi:10.1049/cp.2012.0663

Cited by 12 publications

(4 citation statements)

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“…As an effect, some wavelengths can propagate in the structure while others cannot-these are described as the photonic band gaps. It is due to multiple scattered interferences-defined by Bloch modes-that alter the flow of electromagnetic waves [187][188][189]. Propagation of light can be adjusted through a change in the geometry.…”

Section: Photonic Structuresmentioning

confidence: 99%

Recent Advances in Nanoporous Anodic Alumina: Principles, Engineering, and Applications

2021

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The development of aluminum anodization technology features many stages. With the story stretching for almost a century, rather straightforward—from current perspective—technology, raised into an iconic nanofabrication technique. The intrinsic properties of alumina porous structures constitute the vast utility in distinct fields. Nanoporous anodic alumina can be a starting point for: Templates, photonic structures, membranes, drug delivery platforms or nanoparticles, and more. Current state of the art would not be possible without decades of consecutive findings, during which, step by step, the technique was more understood. This review aims at providing an update regarding recent discoveries—improvements in the fabrication technology, a deeper understanding of the process, and a practical application of the material—providing a narrative supported with a proper background.

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Section: Photonic Structuresmentioning

confidence: 99%

Recent Advances in Nanoporous Anodic Alumina: Principles, Engineering, and Applications

2021

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“…The study incorporated an RGB light changing color to represent the temperature status. Zhou and Schoepf [28] reviewed overheating detection methods for faulty connections in circuits, identifying the risks of arc flashes and fires. They designed a low-cost, portable device using an LM35 temperature sensor to address limitations in existing technologies.…”

Section: Overheat Detectorsmentioning

confidence: 99%

Development of Arduino-based high heat detector temperature control prototype for household appliances

Casinillo,

So,

Mandaya

et al. 2024

IJRA

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<span lang="EN-US">In the Philippines, fires are a widespread concern, with plenty of incidents attributed to electrical appliances. These incidents are a leading cause of non-open flame fires in the country, highlighting the urgent need for preventative measures. Existing devices could only trigger an alarm at 100 °C without shutting off the appliance automatically. To address these limitations, the researchers aimed to develop a high heat detector with 95% detection accuracy and less than 5% error in detecting high heat. This device used an Arduino Uno Board and relay to trigger an automated power-off mechanism in appliances experiencing high heat. Temperature changes were detected, and alarms were activated using an LM35 temperature sensor and buzzer. The accuracy of the LM35 sensor was assessed through hot bath tests, which included 12 trials at each temperature level between 80 °C and 150 °C with 10 °C intervals. The prototype’s performance revealed an average error rate of 1.13% and an average standard deviation of 0.9403. The computed F1 Score of 98% indicated that the prototype fulfilled the objectives. Functionality tests confirmed that the prototype successfully achieved its intended goal by shutting off the appliance when the threshold temperature was reached and enabling its operation otherwise.</span>

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“…Photonic crystals (PCs) are the artificial dielectric formation of periodic refractive index arrangement of multi-dimensional structures. One of the unique properties of PCs is a photonic bandgap (PBG) demonstrated by the glorious work of Zhou and Schoepf [1], Yablonovitch et al [2] and Kopp [3]. PBG and PCs have attracted considerable attention to date.…”

Section: Introductionmentioning

confidence: 99%

“…Due to dispersion, PC presents a slow-wave phenomenon and leakage of modes. Dispersion of light waves in PC explained in terms of the PBG in [1], and by measuring the transmitted waveguides, the dispersion properties of two-dimensional (2D) slot PC slab waveguides were identified details in [7]. Furthermore, the dispersion controls group delay due to chirped PC waveguides shown in detail [8].…”

Section: Introductionmentioning

confidence: 99%

Design and analysis of a position chirped metamaterial photonic crystal array for confinement of light pulses

Chakrabarti

Mostufa

Paul

2021

J. Opt.

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In a photonic crystal (PC) array, a line defect (removal of a periodic structure) and position up-chirping (gradually decreasing lattice constant) are familiar terms to introduce light confinement and propagation due to the photonic bandgap (PBG). In this paper, we have proposed a new model for light confinement using a line defect position chirped PC array with metamaterial as a dielectric material. For comparison, we have designed and simulated for both line defect positions chirped and none position chirped PC array using normal material (refractive index +3.927) dielectric material and metamaterial (refractive index −3.927). We have used metamaterial due to the compensation of light dispersion and leakage effect because the negative refractive index makes the wave vector direction precisely opposite to the positive refractive index material. We have implemented the metamaterial positioned chirped PC array with sharp 90° bending and shown the light confinement and propagation for that structure. To support our proposed model, we have calculated the band diagram of both positive refractive index and metamaterial unit cells and verified the quantum well existence in the band diagram of metamaterial unit cell. Based on the quantum well effect, the confinement of light in metamaterial line defect position chirped PC has been explained and presented with proper finite element method (FEM) simulations. From quantum mechanics, we can comprehend that confining wave particles at the atomic level is extremely challenging because of the evanescent nature of the light wave. The novelty of this paper is that we have managed to confine the propagating of light waves by using the quantum well existence in the metamaterial dielectric for a line defect position chirped PC structure, and to the best of our knowledge, we are probably the first to introduce light confinement using a metamaterial chirped PC structure with proper FEM simulation.

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Detection and formation process of overheated electrical joints due to faulty connections

Cited by 12 publications

References 0 publications

Recent Advances in Nanoporous Anodic Alumina: Principles, Engineering, and Applications

Recent Advances in Nanoporous Anodic Alumina: Principles, Engineering, and Applications

Development of Arduino-based high heat detector temperature control prototype for household appliances

Design and analysis of a position chirped metamaterial photonic crystal array for confinement of light pulses

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