Results 321 to 330 of about 2,481,576 (395)
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Ultrasonic Hydrogel Biochemical Sensor System

2020 42nd Annual International Conference of the IEEE Engineering in Medicine & Biology Society (EMBC), 2020
In this work, we present a proof-of-concept hydrogel-based sensor system capable of wireless biochemical sensing through measuring backscattered ultrasound. The system consists of silica-nanoparticle embedded hydrogel deposited on a thin glass substrate, presenting two interfaces for backscattering (tissue/hydrogel and hydrogel/glass), which allows for
Eunjeong, Byun   +5 more
openaire   +2 more sources

Oil‐paper insulation partial discharge ultrasonic multifrequency sensing array based on fibre‐optic Fabry–Perot sensor

High Voltage, 2021
National Natural Science Foundation of China, Grant/Award Number: U1766217; State Grid Corporation of China Science and Technology Project, Grant/Award Number: 5500‐202099279A‐ 0‐0‐00 Abstract In order to improve the sensitivity and accuracy of oil‐paper
Zhixian Zhang   +6 more
semanticscholar   +1 more source

Characterization and Optimization of Level Measurement by an Ultrasonic Sensor System

IEEE Sensors Journal, 2019
The problem of environmental disasters due to oil spills has characterized recent history from the early ‘900, still being an important risk factor for environmental protection.
A. Rocchi   +4 more
semanticscholar   +1 more source

RADAR based Object Detector using Ultrasonic Sensor

2019 1st International Conference on Advances in Information Technology (ICAIT), 2019
Target/object detection, recognition, position, movement speed, etc. is easy when the object is near or easily visible. But, the same doesn’t stand true especially when the object is far or not visible due to so many factors like weather conditions, day ...
Akshaya U Kulkarni   +3 more
semanticscholar   +1 more source

Navigation system for visually impaired people based on RGB-D camera and ultrasonic sensor

International Congress on Information and Communication Technology, 2019
This paper presents a smart guiding system and wearable device to assist the visually impaired people in avoiding obstacles and navigate safely through indoor environments. The proposed navigation system includes a pair of glasses with a RGB-D camera and
Heba Hakim, A. Fadhil
semanticscholar   +1 more source

Design of an Autonomous Mobile Robot based on the Sensor Data Fusion of Lidar 360, Ultrasonic sensor and Wheel Speed Encoder

2019 9th International Conference on Advances in Computing and Communication (ICACC), 2019
The research in improving the efficiency of the navigation of autonomous mobile robot is escalating in the field of robotics. Path planning and Obstacle avoidance are important aspects of autonomous mobile robot navigation.
S. Premnath   +4 more
semanticscholar   +1 more source

Ultrasonic density sensor for liquids

IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control, 2000
This paper presents an ultrasonic density sensor for liquids that unifies high accuracy with high durability and is suitable for on-line measurements in a wide range of tube diameters. The sensor consists of a transducer with a piezoceramic disk mounted between two reference rods of quartz glass.
A, Puttmer, P, Hauptmann, B, Henning
openaire   +2 more sources

ULTRASONIC SENSORS

Проблеми охорони праці, промислової та цивільної безпеки, 2019
Abstract. Ultrasound a research of the human body using ultrasound waves.Echo signals enter the amplifier and special reconstruction systems, while generatingradiation all the way that does not cause harm for a short time, but can causeproblems with fairly long and close contact with the device.
Sadyk, N., Mokiychuk, V.
openaire   +1 more source

Plate-Mode Ultrasonic Oscillator Sensors

IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control, 1987
Etude des caracteristiques de capteurs qui utilisent la propagation des ondes de Lamb sur des membranes composites Si ...
R M, White   +3 more
openaire   +2 more sources

An Ultrasonic Bladder-Volume Sensor

IEEE Transactions on Biomedical Engineering, 1979
Loss of bladder sensation is a common clinical problem, particularly in diabetes mellitus. A pocket-size ultrasonic bladder-volume sensor has been constructed and tested with successful results. This paper describes the sensor and presents results from its use on healthy volunteers.
M T, Rise, W E, Bradley, D A, Frohrib
openaire   +2 more sources

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