A Submerged Optical Fiber Ultrasonic Sensor Using Matched Fiber Bragg Gratings [PDF]
Sensors, 2018 A novel kind of fiber optic ultrasonic sensor based on matching fiber Bragg gratings (FBGs) is proposed and demonstrated. The sensors consist of a pair of matching FBGs fixed to a special bracket.
Xiaohong Bai +3 more
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Directional Sensitivity of a MEMS-Based Fiber-Optic Extrinsic Fabry–Perot Ultrasonic Sensor for Partial Discharge Detection [PDF]
Sensors, 2018 Extrinsic Fabry–Perot (FP) interferometric sensors are being intensively applied for partial discharge (PD) detection and localization. Previous research work has mainly focused on novel structures and materials to improve the sensitivity and linear ...
Wenrong Si +5 more
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Environment Mapping Using Sensor Fusion of 2D Laser Scanner and 3D Ultrasonic Sensor for a Real Mobile Robot. [PDF]
Sensors (Basel), 2021 Mapping the environment is necessary for navigation, planning and manipulation. In this paper, a fusion framework (as data-in-decision-out) is introduced for a 2D LIDAR and a 3D ultrasonic sensor to achieve three-dimensional mapping without expensive 3D ...
Tran TQ, Becker A, Grzechca D.
europepmc +2 more sources
Ultra-High Sensitivity Ultrasonic Sensor with an Extrinsic All-Polymer Cavity [PDF]
Sensors, 2022 An ultra-high sensitivity ultrasonic sensor with an extrinsic all-polymer cavity is presented. The probe is constructed with a polymer ferrule and a polymer-based reflection diaphragm.
Zongyu Chen +6 more
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Gold-Diaphragm Based Fabry-Perot Ultrasonic Sensor for Partial Discharge Detection and Localization
IEEE Photonics Journal, 2020 Acoustic measurement is the most widely used non-electric method to detect partial discharge (PD) signals by detect the ultrasonic waves arisen from partial discharge.
Wei Zhang +5 more
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Sprayer boom height measurement in wheat field using ultrasonic sensor: An exploratory study [PDF]
Frontiers in Plant Science, 2022 In order to explore the influencing factors and laws of ultrasonic sensor detecting wheat canopy height, designed an ultrasonic sensor detection height test platform with speed adjustable function.
Xueguan Zhao +10 more
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Wheat Height Estimation Using LiDAR in Comparison to Ultrasonic Sensor and UAS. [PDF]
Sensors (Basel), 2018 As one of the key crop traits, plant height is traditionally evaluated manually, which can be slow, laborious and prone to error. Rapid development of remote and proximal sensing technologies in recent years allows plant height to be estimated in more ...
Yuan W +5 more
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Contact-Free Biosignal Acquisition via Capacitive and Ultrasonic Sensors [PDF]
IEEE Access, 2020 Contact-free detection of human vital signs like heart rate and respiration rate will improve the patients' comfort and enables long-term monitoring of newborns or bedridden patients.
Roman Kusche +3 more
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Scientific Reports, 2021 Ultrasonic wave is a powerful tool for many applications, such as structural health monitoring, medical diagnosis and partial discharges (PDs) detection.
Haoyong Li +6 more
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Performance Enhancement of Pedestrian Navigation Systems Based on Low-Cost Foot-Mounted MEMS-IMU/Ultrasonic Sensor. [PDF]
Sensors (Basel), 2019 The pedestrian navigation system (PNS) based on inertial navigation system-extended Kalman filter-zero velocity update (INS-EKF-ZUPT or IEZ) is widely used in complex environments without external infrastructure owing to its characteristics of autonomy ...
Xia M, Xiu C, Yang D, Wang L.
europepmc +2 more sources