Results 1 to 10 of about 123,977 (300)

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

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

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

Object Recognition and Positioning with Neural Networks: Single Ultrasonic Sensor Scanning Approach [PDF]

open access: yesSensors
Ultrasonic sensing may become a useful technique for distance measurement and object detection when optical visibility is not available. However, the research on detecting multiple target objects and locating their coordinates is limited. This makes it a
Ahmet Karagoz, Gokhan Dindis
doaj   +2 more sources

Microfiber Interferometric Sensor for Ultrasound Detection [PDF]

open access: yesSensors
By setting up ultrasonic fields in solid and liquid environments, the propagation characteristics of ultrasonic waves were investigated, and a sensing experiment device with related physical field settings was constructed. A comparison of results between
Xiuxin Wang   +5 more
doaj   +2 more sources

Characteristics of the Received Signal of an Ultrasonic Sensor Installed in a Chamber with Micro-Leakage [PDF]

open access: yesMechanical Sciences, 2021
As fossil fuel depletion and environmental pollution problems are becoming increasingly more serious, interest in the efficient use of natural resources and alternative energy is rapidly growing.
W. Seo, S. Im, G. Lee
doaj   +1 more source

Automated Real-Time Eddy Current Array Inspection of Nuclear Assets

open access: yesSensors, 2022
Inspection of components with surface discontinuities is an area that volumetric Non-Destructive Testing (NDT) methods, such as ultrasonic and radiographic, struggle in detection and characterisation.
Euan Alexander Foster   +12 more
doaj   +1 more source

Wind speed sensor data processing based on Kaman Vortex Street principle [PDF]

open access: yesITM Web of Conferences, 2022
Wind speed is one of the important monitoring parameters to ensure mine safety. The commonly used mine wind speed sensor can be divided into ultrasonic type, impeller type and hot wire type according to the design principle.
Xie Wenjing   +5 more
doaj   +1 more source

Transforming Industrial Manipulators via Kinesthetic Guidance for Automated Inspection of Complex Geometries

open access: yesSensors, 2023
The increased demand for cost-efficient manufacturing and metrology inspection solutions for complex-shaped components in High-Value Manufacturing (HVM) sectors requires increased production throughput and precision.
Charalampos Loukas   +13 more
doaj   +1 more source

Ultrasonic Wave Mode-Based Application for Contactless Density Measurement of Highly Aerated Batters

open access: yesFoods, 2023
An ultrasonic wave mode-based method for density measurement in highly foamed batters was developed. Therefore, a non-contact ultrasonic sensor system was designed to generate signals for batch-wise processes.
Michael Metzenmacher   +2 more
doaj   +1 more source

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