Article
Engineering, Electrical & Electronic
Jia-Wei Zhang, Xuan Meng, Xiaofei Wei, Geng Fu, Chatchai Putson, Belouadah Rabah, Hajjaji Abdelowahed, Fouad Belhora
Summary: Electromagnetic pollution poses a significant challenge, causing unavoidable damage to the environment and human health. This study proposes a passive optical fiber magnetic field sensor with a wide measurement range and anti-electromagnetic interference capability, which shows great potential for applications in electromagnetic pollution monitoring, power equipment assessment, and geological exploration.
SENSORS AND ACTUATORS A-PHYSICAL
(2023)
Article
Chemistry, Analytical
Xianli Li, Yi Cui, Gaolong Yao, Yongzhen Xi, Xiaoran Hai
Summary: This article describes an integrated electro-optic sensor to meet the special requirements for high-power transient electromagnetic pulse (EMP) field measurements. The sensor was experimentally characterized for its frequency response, time-domain input/output characteristics, and its ability to measure ultrawideband EMP field signals. The sensor demonstrated a rise time of 0.35 ns, a bandwidth of 1 GHz, and the ability to detect an intense sub-nanosecond EMP with a peak amplitude of 100 kV/m.
INSTRUMENTATION SCIENCE & TECHNOLOGY
(2023)
Article
Chemistry, Analytical
Gunbok Lee, Jeong-Yeon Kim, Gildong Kim, Jae Hee Kim
Summary: The study proposes integrating an electric field sensor into drones to detect high-voltage power lines. Experimental results show that the sensor is effective in both laboratory and real-world environments, making it suitable for application in drones.
Article
Engineering, Electrical & Electronic
Gabriel Fellner, Lucas Speckbacher, Seyed Mostafa Mousavi, David Johannes Pommerenke, Satyajeet Shinde, Michael Hillstrom, Ram Chundru, Cheung-Wei Lam
Summary: This article presents a novel peak detect and hold (PDH) circuit for the measurement of the peak voltage of electromagnetic-field probes. The circuit combines small size, low power consumption, and nanosecond operation using a discrete bipolar transistor structure with operational transconductance amplifier (OTA) and common-base storage capacitor charge control. The circuit performance is demonstrated for different bias point settings, showing unmatched speed and power consumption compared to the literature. The PDH circuit can be adjusted to the sensor's frequency response using bias settings to minimize power consumption in a multichannel system.
IEEE TRANSACTIONS ON INSTRUMENTATION AND MEASUREMENT
(2023)
Article
Optics
Weijie Liu, Ling Zhang, Nuo Huang, Zhenghyuan Xu
Summary: In this paper, the selection of photon detector and symbol detection methods in underwater optical wireless communication are investigated. Experimental measurements of upsampled discrete samples within a training symbol duration are used to fit the sample distribution with the generalized extreme value (GEV) distribution. Joint sample distribution (JSD) based and superimposed sample distribution (SSD) based symbol detection methods are proposed using the GEV distribution and log-likelihood ratio (LLR) testing criterion. Experimental results show that these methods outperform traditional maximum likelihood detection methods under different conditions. The effectiveness of the proposed methods in alleviating strong ambient radiation is also experimentally verified.
Article
Nanoscience & Nanotechnology
Venkata Ramesh Naganaboina, Mariappan Anandkumar, Atul Suresh Deshpande, Shiv Govind Singh
Summary: This article presents a CO2 gas detection method using Y-HEC-based sensors, which exhibit excellent sensing performance at room temperature, including wide-range detection, fast response and recovery times, high repeatability and selectivity, and good long-term stability.
ACS APPLIED NANO MATERIALS
(2022)
Article
Optics
Fengchuan Wu, Qiang An, Zhanshan Sun, Yunqi Fu
Summary: In recent years, electric field measurement techniques based on Rydberg atoms have shown unique advantages in high sensitivity, wideband applications, and miniaturization. The Rydberg atom receiver utilizes quantum coherence effect to sense the electromagnetic signal, overcoming the limitations of traditional electronic receivers. This paper establishes a theoretical model and explores the linear dynamic range of the Rydberg atomic superheterodyne receiver, providing theoretical guidance for its design and performance optimization.
Article
Chemistry, Multidisciplinary
Yajie Zhang, Xinyu Zhang, Chuan Ning, Kun Dai, Guoqiang Zheng, Chuntai Liu, Changyu Shen
Summary: Electronic skin plays an important role in future wearable electronic devices. In this study, mushroom-mimetic micropatterns were prepared to improve the sensing performance of e-skin. By spraying carbon nanotube dispersion, the sensitive layer of the e-skin was further enhanced. The resulting e-skin exhibits high sensitivity, wide pressure sensing range, short response time, and excellent durability. It can precisely monitor health conditions and recognize Morse code underwater. This research provides a cost-efficient and convenient strategy for designing e-skin for future wearable intelligent systems.
MATERIALS HORIZONS
(2023)
Article
Physics, Applied
Xinyu Ma, Chijie Zhuang, Rong Zeng, Weidong Zhou
Summary: An integrated optical electric field sensor based on LNOI platform with one-dimensional photonic crystal nanobeam cavity is reported, featuring extreme sensitivity and large dynamic range. The use of TiO2 to compensate for LN's thermal-optical effect and its high dielectric constant impacting E-field distribution is proposed. A tri-layer TiO2/LNOI/TiO2 nanobeam structure is suggested to enhance electro-optical modulation efficiency in LN.
JOURNAL OF PHYSICS D-APPLIED PHYSICS
(2021)
Article
Engineering, Electrical & Electronic
Zhao Liu, Hao Wu, Wenhao Du, Lan Zhao, Mengke Wang, Bao Sun, Zhiyao Zhang, Shangjian Zhang, Yong Liu
Summary: A broadband integrated electric field sensor based on Lithium niobate on insulator technology is proposed and demonstrated. The sensor utilizes an asymmetrical Mach-Zehnder interferometer configuration and an array of tapered dipole antennas. Experimental results show that the fabricated sensor can accurately measure electric field strength in the frequency range of 0.1 GHz to 26.5 GHz, exhibiting high accuracy and sensitivity.
IEEE PHOTONICS TECHNOLOGY LETTERS
(2023)
Article
Chemistry, Analytical
Rachel Georgel, Konstantin Grygoryev, Simon Sorensen, Huihui Lu, Stefan Andersson-Engels, Ray Burke, Daniel O'Hare
Summary: This article provides an overview of the importance of silicon photomultipliers (SiPMs) in bio-photonic and clinical applications. SiPMs are compared with other photodetectors and shown to have advantages in circuit design parameters, allowing for high sensitivity auto-fluorescence detection and a wide dynamic range at low optical powers.
Article
Optics
Feihong Lin, Xihao Wang, Mingwei Tang, Jiqiang Zhang, Lining Wang, Xu Liu, Qing Yang
Summary: To ensure safe operation in high-voltage environments, precise measurement of high-frequency electric fields is crucial. We propose a frequency shift-based approach for high-frequency electric field intensity measurement, which offers high gain and wide frequency range. By using stimulated Brillouin scattering and down-conversion methods, we amplify the OES signal and down-convert the high-frequency signal to a sub-MHz intermediate frequency. This frequency shift approach shows potential for low-cost and small footprint detection and analysis of high-frequency electric fields, with valuable applications in electronic warfare, high-voltage engineering, and space exploration.
OPTICS COMMUNICATIONS
(2023)
Article
Computer Science, Artificial Intelligence
Henri Rebecq, Rene Ranftl, Vladlen Koltun, Davide Scaramuzza
Summary: Event cameras are sensors that report brightness changes in the form of asynchronous events, offering advantages such as high temporal resolution, dynamic range, and lack of motion blur. This study introduces a data-driven approach to reconstruct intensity images from event streams, showcasing significant improvements in terms of image quality and real-time performance compared to existing methods.
IEEE TRANSACTIONS ON PATTERN ANALYSIS AND MACHINE INTELLIGENCE
(2021)
Article
Engineering, Electrical & Electronic
Shipeng Xie, Yuanfei Zhang, Minghe Jin, Chongyang Li, Qingyuan Meng
Summary: The article introduces a novel soft magnetic tactile sensor (SMTS) based on the law of electromagnetic induction for external interactions. Analyzing the mechanical properties of the elastomer with a finite element model, calibrating the sensor using polynomial fitting method, the calibrated prototype shows competitive performances in comparison with existing counterparts.
IEEE SENSORS JOURNAL
(2021)
Article
Optics
D. A. Long, J. R. Stroud, B. J. Reschovsky, Y. Bao, F. Zhou, S. M. Bresler, T. W. Lebrun, D. F. Plusquellic, J. J. Gorman
Summary: This study utilizes a dual optical frequency comb spectrometer to readout a microfabricated cavity optomechanical accelerometer, achieving high accuracy and dynamic range simultaneous measurements. The proposed method achieves a displacement sensitivity of 2 fm Hz(-1/2), a measurement rate of 100 kHz, and a dynamic range of 7.6 x 10(5), which is the highest among microfabricated cavity optomechanical sensors. Comparison with a commercial reference accelerometer shows agreement at the 0.5% level.
