Method of and apparatus for measuring a space distribution of spacings between point scatterers. An ultrasonic wave is applied to an ultrasonic scattering medium which is an aggregation of point scatterers. Ultrasonic waves, scattered from the medium, are converted into an electric signal. The shape...http://www.google.fr/patents/US5029475?utm_source=gb-gplus-shareBrevet US5029475 - Measuring spatial distribution of spacings between point scatterers
Measuring spatial distribution of spacings between point scatterers
