Single-wired array light detector based on photoacoustic effect

Li, Yaping; Fu, Yong; Ji, Zhong; Li, Xiaodan; Ji, Yingying; Zheng, Xu; Mai, Wenjie

doi:10.1016/j.optlaseng.2020.106460

Cited by 4 publications

(3 citation statements)

References 31 publications

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“…There is still some error in determining the optimal receiving angle of the solar panel based solely on the position change of the sun's geographic information. This paper proposes a real-time dual-axis adjustment method for solar panel adjustment, adding a four-quadrant optical tracker and a differential circuit (enhanced signal difference) [7,8]. The quadrant optical tracking sensor consists of four parts: photodiode, mask, lens, and light source.…”

Section: Intelligent Optical Tracker Modelmentioning

confidence: 99%

The Control Principle and Mathematical Model of Intelligent Solar Panels

Dai

Zheng

Tang

et al. 2022

J. Phys.: Conf. Ser.

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Energy is an important material that promotes social development and maintains human life. Clean energy has become a scientific research theme of open world which appeal to many scientists to research it. This paper inspired by the experience of sunflower growth. So we proposed a mathematical model for automatic adjustment of the maximum luminous flux for a limited solar panel, which can help to adjust the best light position. The physical model added to the light detector in the practical application, real-time comparison of the difference in illumination at different positions to adjust the direction of solar panel, thereby enhancing the utilization of light energy. In addition, in order to save space and prevent severe weather attacks, we designed a autofolding circle disc and retractable rectangular solar panels. The intelligent system judgement and decision making based on the electrical signals fed back by the wind sensor or the vibration sensor. When the wind speed reaches the threshold, it can be folded or contracted automatically, reducing manual maintenance. The fully automatic solar panels are designed in this paper, the research results show that theis model has a high utilization, strong sensitivity, safety and durability, and easy control. This is also a process of theoretical exploration of interdisciplinary services for the energy system.

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Section: Intelligent Optical Tracker Modelmentioning

confidence: 99%

The Control Principle and Mathematical Model of Intelligent Solar Panels

Dai

Zheng

Tang

et al. 2022

J. Phys.: Conf. Ser.

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“…Non-contact detection of ultrasound allows measuring ultrasonic waves through optical methods, exploiting photo-acoustic interaction phenomena involving light and sound waves [8] . Ultrasound detection by optical methods has had vigorous development since the 1970s.…”

Section: Introductionmentioning

confidence: 99%

On the Use of Two Emerging Laser-Based Flaw-Detection Techniques – Considerations and Practicalities

vangi¹,

Gulino²,

Montinaro³

et al. 2022

SSRN Journal

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“…[ 3 ] Additionally, photoacoustic (PA) effect can be used to detect pulsed‐lasers. [ 5 ] The excited photoacoustic devices convert electromagnetic waves into ultrasonic waves. Especially electromagnetic waves those are difficult to be detected by other methods, such as Terahertz wave.…”

Section: Introductionmentioning

confidence: 99%

Pulsed‐Laser Detectors Based on Metal Halide Perovskites

Tian

et al. 2021

Laser & Photonics Reviews

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Conventionally, the detection of pulsed‐lasers is mainly based on thermal effects, such as thermoelectric detectors and pyroelectric detectors, which possess a photothermal conversion process, resulting in slow response and significant energy loss. Fast photodiodes are also introduced to calibrate pulsed‐lasers. However, they require advanced oscilloscopes with high bandwidth and amplification systems, limiting their practical application to some extent. To address the issues of these two types of pulsed‐laser detectors, an interfacial modification strategy is introduced to the conventional perovskite photodiodes. The incorporation of the polyvinylidene fluoride layer can effectively slow down the photovoltage decay of the perovskite devices via electric‐field induced polarization, which enables the detection of both modulated light emitting diodes and ultra‐fast pulsed‐lasers in a facile way. With such effect, the polyvinylidene fluoride (PVDF) based photodetectors can effectively convert the pulsed light input to a quasi‐DC output, which can be easily recorded with a multimeter or source meter. These devices also exhibit low noise voltage of <10−5 V Hz−1/2, high responsivity of >2 × 104 V W−1 @ 1 µW cm−2, indicating great potential for real applications.

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Single-wired array light detector based on photoacoustic effect

Cited by 4 publications

References 31 publications

The Control Principle and Mathematical Model of Intelligent Solar Panels

The Control Principle and Mathematical Model of Intelligent Solar Panels

On the Use of Two Emerging Laser-Based Flaw-Detection Techniques – Considerations and Practicalities

Pulsed‐Laser Detectors Based on Metal Halide Perovskites

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