C
C. Fritsch
Researcher at Spanish National Research Council
Publications - 47
Citations - 999
C. Fritsch is an academic researcher from Spanish National Research Council. The author has contributed to research in topics: Beamforming & Image quality. The author has an hindex of 15, co-authored 47 publications receiving 802 citations.
Papers
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Journal ArticleDOI
Phase Coherence Imaging
TL;DR: A new method for grating and side lobes suppression in ultrasound images is presented, based on an analysis of the phase diversity at the aperture data, which uses phase rather than amplitude information to perform the correction action.
Journal ArticleDOI
Railway wheel-flat detection and measurement by ultrasound
J. Brizuela,C. Fritsch,A. Ibanez +2 more
TL;DR: In this article, an innovative ultrasound technique designed to detect and quantify flats formed in the rolling surface of railway wheels is presented, where ultrasonic pulses (Rayleigh waves) are sent over a measuring rail.
Journal ArticleDOI
Airborne ultrasonic phased arrays using ferroelectrets: a new fabrication approach
TL;DR: A novel procedure that considerably simplifies the fabrication process of ferroelectret-based multi-element array transducers is proposed and evaluated, and this concept can be extended to nonflat arrays as long as the transducer substrate conforms to a developable surface.
Journal ArticleDOI
Passive focusing techniques for piezoelectric air-coupled ultrasonic transducers.
TL;DR: A novel passive focusing system for Air-Coupled Ultrasonic (ACU) piezoelectric transducers which is inspired by the Newtonian-Cassegrain telescope concept, which has a coaxial design, which eases the transducers positioning and use in many applications, and is less bulky than off-axis mirrors.
Proceedings ArticleDOI
Grating-lobes reduction by application of Phase Coherence Factors
TL;DR: In this paper, a phase coherence imaging (PCI) method was proposed for grating lobe artifacts reduction in ultrasound images, and a 2D matrix sparse array was used to evaluate the performance of this method for medical images.