Results 11 to 20 of about 420,549 (292)
A Novel Broadband Ultrasonic Location System [PDF]
, 2002 Indoor ultrasonic location systems provide ne-grained position data to ubiquitous computing applications. However, the ultrasonic location systems previously developed utilize narrowband transducers, and thus perform poorly in the presence of noise and ...
Ward, Andy, Hazas, Michael
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Novel hydrophilic polymer couplant for application in ultrasonic non destructive testing [PDF]
, 2001 Ultrasonic Non Destructive Testing (NDT) is used to inspect materials and structures for defects. Water is commonly used in NDT as a couplant to improve ultrasonic transfer between an interrogating probe and test piece.
Bourne, Simon James
core +7 more sources
A noncontact ultrasonic platform for structural inspection [PDF]
, 2011 Miniature robotic vehicles are receiving increasing attention for use in nondestructive testing (NDE) due to their attractiveness in terms of cost, safety, and their accessibility to areas where manual inspection is not practical. Conventional ultrasonic
Summan, Rahul +4 more
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Broadband Ultrasonic Location Systems for Improved Indoor Positioning [PDF]
, 2006 Ultrasonic location systems are a popular solution for the provision of fine-grained indoor positioning data. Applications include enhanced routing for wireless networks, computer-aided navigation, and location-sensitive device behavior. However, current
Hopper, Andy, Hazas, Michael
core +4 more sources
Ultrasonic Reflection for Measurement of Oil Film Thickness and Contact between Dissimilar Materials [PDF]
, 2012 The contact between dissimilar materials occurs in many machine elements where one of the contacting parts is manufactured from low modulus materials such as lip seals, o-rings, and metal on polymer prosthetic hip joints.
Gasni, Dedison
core +6 more sources
An Ultrasonic Sensor for Distance Measurement in Automotive Applications [PDF]
, 2001 This paper describes an ultrasonic sensor that is able to measure the distance from the ground of selected points of a motor vehicle. The sensor is based on the measurement of the time of flight of an ultrasonic pulse, which is reflected by the ground. A
Parvis, Marco, Carullo, Alessio
core +1 more source
Sensors, 2020 In this paper, the perspectives of using the features of acoustic wave propagation to design rotation rate sensors (RRS) are discussed. The possibility of developing the solid-state sensitive elements (SE) of RRS on acoustic waves of circular ...
Michail Shevelko +5 more
doaj +1 more source
Sonographic features of agenesis of dorsal pancreas
Indian Journal of Radiology and Imaging, 2013 Agenesis of dorsal pancreas is an extremely rare congenital anomaly that occurs due to failure of the dorsal pancreatic bud to form the body and tail of the pancreas. We report the sonographic appearance of this condition in six cases.
Boopathy Vijayaraghavan S +2 more
doaj +1 more source
SensorsSmartphones incorporate acoustic components, including a speaker and multiple microphones, which can be used as a low-cost, contactless platform for vital signs monitoring.
Kounkou Vincent +6 more
doaj +1 more source
Materials & Design, 2022 Wire + Arc Additive Manufacture (WAAM) is an economical manufacturing technique to build components. To maintain the commercial and technical benefits, inspection is desired at each layer of the build. New conformable phased array roller-probes offer the
Rastislav Zimermann +9 more
doaj +1 more source