Results 1 to 10 of about 2,481,576 (395)

Environment Mapping Using Sensor Fusion of 2D Laser Scanner and 3D Ultrasonic Sensor for a Real Mobile Robot. [PDF]

open access: yesSensors (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]

open access: yesSensors, 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
doaj   +2 more sources

Ultrasound Measurement of Skeletal Muscle Contractile Parameters Using Flexible and Wearable Single-Element Ultrasonic Sensor. [PDF]

open access: yesSensors (Basel), 2020
Skeletal muscle is considered as a near-constant volume system, and the contractions of the muscle are related to the changes in tissue thickness.
AlMohimeed I, Ono Y.
europepmc   +2 more sources

Polydimethylsiloxane diaphragm-based fiber ultrasonic sensor with high sensitivity and wide spectrum response range

open access: yesAIP Advances, 2021
In order to effectively enhance the sensitivity and response range of optical fiber Fabry–Pérot (FP) ultrasonic sensors, this article proposes an implementation method of an optical fiber FP ultrasonic sensor with a controllable cavity length and ...
Long Li   +6 more
doaj   +2 more sources

Gold-Diaphragm Based Fabry-Perot Ultrasonic Sensor for Partial Discharge Detection and Localization

open access: yesIEEE 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
doaj   +2 more sources

Sprayer boom height measurement in wheat field using ultrasonic sensor: An exploratory study [PDF]

open access: yesFrontiers 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
doaj   +2 more sources

Wheat Height Estimation Using LiDAR in Comparison to Ultrasonic Sensor and UAS. [PDF]

open access: yesSensors (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
europepmc   +2 more sources

Autonomous Vehicle Ultrasonic Sensor Vulnerability and Impact Assessment [PDF]

open access: yesWorld Forum on Internet of Things, 2018
Vehicles today are relying more on technologies to bring about fully autonomous features. The conventional wirings within are being simplified into a network of electronic components, and this network is controlled via advanced sensing of the environment
Keoh, Sye Loong   +2 more
core   +2 more sources

Performance Enhancement of Pedestrian Navigation Systems Based on Low-Cost Foot-Mounted MEMS-IMU/Ultrasonic Sensor. [PDF]

open access: yesSensors (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

A Submerged Optical Fiber Ultrasonic Sensor Using Matched Fiber Bragg Gratings [PDF]

open access: yesSensors, 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
doaj   +2 more sources

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