Same-phase dense-arrangement array type ultrasonic emitting unit

Abstract

The invention belongs to the technical field of ultrasonic emission and particularly relates to a same-phase dense-arrangement array type ultrasonic emitting unit capable of emitting high-strength and high-directivity ultrasonic waves. The same-phase dense-arrangement array type ultrasonic emitting unit is composed of a same-phase ultrasonic transducer array and a printed circuit board. According to the requirement, ultrasonic transducers of different physical performances and geometric sizes are designed, arrayed in a dense-arrangement manner and correspondingly inserted into the printed circuit board matched with the dense-arrangement array. An ultrasonic signal subjected to power amplification is input into the same-phase dense-arrangement array type ultrasonic emitting unit, and the same-phase dense-arrangement array type ultrasonic emitting unit is made to emit out the high-strength and high-directivity ultrasonic waves. The same-phase dense-arrangement array type ultrasonic emitting unit capable of emitting the high-strength and high-directivity ultrasonic waves can be used for directional spreading of the sonic waves and can also be used for the fields of ultrasonic suspension, distance measurement, remote control, imaging, emulsification, sterilization, chemical reaction promoting, biological research performing and the like.

Description

technical field [0001] The invention belongs to the technical field of ultrasonic emission, and in particular relates to an in-phase close array ultrasonic emission unit. Background technique [0002] Generally used for open transducers for ultrasonic emission, considering the use environment and the need for the protection of the emitter, there is a shell made of metal or non-metal material outside the emitter, and the rear end of the shell is sealed and fixed with the emitter , The front end is equipped with a protective net. In order to distinguish the positive and negative poles of the emitter signal input, a circular boss is used to represent the positive electrode at the connection between the emitter bracket and the electrode. However, when multiple (several to tens of thousands) arrays are used to launch, due to the existence of the shell and the large diameter of the circular base supporting the vibrating body and the shell, the volume of the array unit increases, a...

AI Technical Summary

Problems solved by technology

However, when multiple (several to tens of thousands) arrays are used to launch, due to the existence of the shell and the large diameter of the circular base supporting the vibrating body and the shell, the volume of the array unit increases, and the unit area The intensity of ultrasonic emission is reduced and the directionality is weakened

In addition, the inconsistency of the positive and negative poles of the array transducers will also cause the phases of the ultrasonic waves emitted by each transducer to be different after the array formation, causing the emitted ultrasonic waves to cancel each other out, and the expected effect after the formation of the array cannot be achieved.

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