Abstract
The water-squirting ultrasonic detector can not only reduce wetted area of specimen, volume of detection equipment, but also gain longitudinal wave, shear wave, and surface wave detection by changing the ultrasonic incident angle. The paper discusses the development of a new kind of water-squirting ultrasonic detector, which is based on the study of water immersion ultrasonic detector. In this detector, a removable water column replaces the fixed water container for maneuverability; a composited column replaces the water-only column for the ultrasonic coupling channel; a special optimized nozzle is used to form the composited column; an ultrasonic absorption intracavity and an air-water composited mixture are used for anti-interference. Finally, the new kind of water-squiring ultrasonic detector may replace the original water immersion detector, and can be applied to more extensive detection field.
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