Results 81 to 90 of about 115,036 (200)

REAL-TIME ULTRASONIC LOCALIZATION USING AN ULTRASONIC SENSOR ARRAY

open access: yesPerner’s Contacts, 2012
This paper addresses localization using an ultrasonic receive array. The localization is realized in real-time. It is shown, that this method leads to good angle estimation accuracy in a low-cost indoor system.
Michal Mandlik   +2 more
doaj  

A Location Method Using Sensor Arrays for Continuous Gas Leakage in Integrally Stiffened Plates Based on the Acoustic Characteristics of the Stiffener

open access: yesSensors, 2015
This paper proposes a continuous leakage location method based on the ultrasonic array sensor, which is specific to continuous gas leakage in a pressure container with an integral stiffener.
Xu Bian   +5 more
doaj   +1 more source

In-flight measurement of ice growth on an airfoil using an array of ultrasonic transducers [PDF]

open access: yes
Results of preliminary tests to measure ice growth on an airfoil during flight icing conditions are presented. Ultrasonic pulse echo measurements of ice thickness are obtained from an array of eight ultrasonic transducers mounted flush with the leading ...
Hansman, R. John, Jr.   +3 more
core   +1 more source

Multi-View Reconstruction Fusing Ultrasonic Phased Array and Camera for Mobile Robots in Simulation Environment

open access: yesIEEE Access
Distance sensors are important for mobile robots to perceive surrounding environment. Typical sensors like LiDARs and depth cameras have been widely used, yet each has its limitations, such as LiDARs’ relatively high cost, depth cameras’ ...
Jixiang Ren, Xiaoping Hong
doaj   +1 more source

Airborne Ultrasonic Tactile Display BCI

open access: yes, 2015
This chapter presents results of our project, which studied whether contactless and airborne ultrasonic tactile display (AUTD) stimuli delivered to a user's palms could serve as a platform for a brain computer interface (BCI) paradigm.
Hamada, Katsuhiko   +3 more
core   +1 more source

A Flexible Surgical Robot with Hemispherical Magnet Array Steering and Embedded Piezoelectric Beacon for Ultrasonic Position Sensing

open access: yesAdvanced Intelligent Systems
This article proposes a flexible surgical robot featuring strong magnetic steering achieved by a hemispherical magnet array actuation, and high‐accuracy ultrasonic position sensing achieved by a beacon total focusing method (b‐TFM).
Feng Ju   +6 more
doaj   +1 more source

Monitoring of the central blood pressure waveform via a conformal ultrasonic device. [PDF]

open access: yes, 2018
Continuous monitoring of the central-blood-pressure waveform from deeply embedded vessels, such as the carotid artery and jugular vein, has clinical value for the prediction of all-cause cardiovascular mortality. However, existing non-invasive approaches,
Bhaskaran, Shubha   +23 more
core   +1 more source

Online evolution of a phased array for ultrasonic imaging by a novel adaptive data acquisition method

open access: yesScientific Reports
Ultrasonic imaging, using ultrasonic phased arrays, has an enormous impact in science, medicine and society and is a widely used modality in many application fields.
Peter Lukacs   +3 more
doaj   +1 more source

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