Non-scanning measurement of convex and concave curvature with an annular array
- Conference date: 5–8 September 2011
- Location: Gdańsk, Poland
The paper describes a novel ultrasonic method for measuring local object curvature radii without scanning. For the measurements, an ultrasonic annular array is used, where the phase and amplitude differences on the different receivers are used to determine the object curvature radius and its distance from the transducer simultaneously. The method aims at measurements of spherical or oval inclusions in fluids and solids in general, and of the curvature radius of eye lens and retina in particular. It is intended to work as a supplement to conventional imaging applications. To verify the measurement method, theoretical and experimental results with steel spheres as reflectors are presented. After measuring and taking into account the acoustically effective size of the single transducer elements, good agreement between measurements and simulations could be achieved.
MOST READ THIS MONTH
MOST CITED THIS MONTH
Article metrics loading...