Ultrasonic imaging technique
Abstract
Abstract AN ULTRASONIC IMAGING METHOD AND APPARATUS WITH SUBSTANTIAL UTILITY IN THE HIGHER ULTRANSOIC FREQUENCY RANGE IN WHICH AN ULTRASONIC HOLOGRAM IS PRODUCED AT A LIQUID DETECTING SURFACE BY THE INTERACTION OF AN ULTRASONIC OBJECT BEAM AND AN ULTRASONIC REFERENCE BEAM PRODUCED RESPECTIVELY BY TWO ULTRASONIC TRANSDUCERS POSITIONED JUST BELOW THE ULTRASONIC DETECTING SURFACE AND PLACED ONE ON TOP OF THE OTHER IN A MANNER SUCH THAT THE ULTRASONIC BEAM PRODUCED BY THE LOWER OF THE TWO TRANSDUCERS PASSES THROUGH THE UPPER OF THE TRANSDUCERS ON ITS WAY TO THE DETECTING SURFACE AS IF THE UPPER TRANSDUCERS ON ITS WAY TO THE DETECTING SURFACE AS IF THE UPPER TRANSDUCER WAS A WINDOW. AN IMPROVED VIBRATION ISOLATION TANK FOR CONTAINING A THIM FILM LIQUID DETECTOR IS ALSO DISCLOSED WHICH MINIMIZES THE IMAGE NOISE RESULTING FROM VIBRATION WAVES IN THE SURFACE OF THE LIQUID DETECTOR.
Inventors
- 👤 Byron B Brenden
- 👤 David R Hoegger
Bibliographic Details
Claims Analysis
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