Phased array ultrasonic transducer and ultrasonic phased array inspection system

Abstract

The invention discloses a phased array ultrasonic transducer and an ultrasonic phased array inspection system. A transducer array of the phased array ultrasonic transducer is positioned on the same columnar base, used for acquiring and / or emitting three-dimensional space ultrasonic waves and provided with a plurality of ultrasonic transducer array elements. According to the technical scheme, the three-dimensional space ultrasonic waves can be acquired and / or emitted, the acquisition rate of photoacoustic signals transmitted to a three-dimensional space is increased, the three-dimensional spaceultrasonic waves are emitted, and three-dimensional space imaging is realized. The columnar base can be set into a hollow structure with through holes, the ultrasonic transducer array elements are arranged in the inner walls of the through holes, and objects to be imaged are placed into the through holes. The columnar base can further comprise a plurality of separable sub-columnar bases. The phased array ultrasonic transducer simultaneously has capabilities of transmitting and receiving acoustic wave signals to the three-dimensional space, and a novel three-dimensional phased array ultrasonictransducer is provided for the fields of medical photoacoustic imaging, ultrasonic imaging, industrial non-destructive inspection and the like.

Description

technical field [0001] The invention relates to the technical fields of photoacoustics and ultrasound, and more specifically relates to a phased array ultrasonic transducer and an ultrasonic phased detection system. Background technique [0002] Compared with traditional ultrasonic detection technology, ultrasonic phase control technology has many advantages. Ultrasonic phase control technology uses electronic methods to control the deflection, focusing and scanning of the sound beam. It can perform fast scanning without moving or less moving the transducer, and has good sound beam accessibility. The detection of the object to be measured and its blind area can also optimize the control of the focal point size, focal area depth and sound beam direction, so that the detection resolution and signal-to-noise ratio can be improved, the detection image is clearer, and the detection speed is faster. [0003] Due to the above advantages, the ultrasonic phase-controlled detection s...

AI Technical Summary

Problems solved by technology

The phased array ultrasonic transducer is the core component of the ultrasonic phased detection system. When the existing phased array ultrasonic transducer is used for photoacoustic imaging, the acquisition rate of the photoacoustic signal is low, the imaging sensitivity is low, and the imaging quality is poor.

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