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An array type ultrasonic transducer and its manufacturing method

An ultrasonic transducer and ultrasonic energy transduction technology, applied in the direction of fluid using vibration, can solve the problems of performance improvement, achieve imaging resolution and signal-to-noise ratio, improve the scope of application and performance, increase output bandwidth and The effect of magnitude response

Active Publication Date: 2022-03-04
深圳皓影医疗科技有限公司
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Problems solved by technology

The performance of existing ultrasonic transducer equipment needs to be improved

Method used

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  • An array type ultrasonic transducer and its manufacturing method
  • An array type ultrasonic transducer and its manufacturing method
  • An array type ultrasonic transducer and its manufacturing method

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Embodiment Construction

[0040] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0041] As mentioned in the background art, in recent years, it has been reported by many scholars to use the novel physical properties and effects of acoustic metamaterials to improve the acoustic matching performance of ultrasonic transducers. Ultrasound transducers are key components in ultrasound equipment and can be used for ultrasound imaging, ultrasound stimulation, ultrasound therapy, acoustic manipulation, and more. The performance of existing ultrason...

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Abstract

The present invention provides an array type ultrasonic transducer and a manufacturing method thereof. The ultrasonic transducer unit provided by the present invention can solve the problem of impedance mismatch between the ultrasonic transducer unit and the target object through an acoustic impedance matching layer, and improve the ultrasonic transducer The output bandwidth and amplitude response of the energy unit can be improved to increase its imaging resolution and sensitivity. In addition, the ultrasonic transducer unit can correct the sound field distortion generated during beam control, deflection, beam focusing and other adjustments through the acoustic metasurface, and at the same time further improve the imaging resolution and signal-to-noise ratio of the ultrasonic transducer unit. And the array ultrasonic transducer is obtained by arranging a plurality of ultrasonic transducer units in an array, thereby improving the applicable range and performance of the array ultrasonic transducer. At the same time, the present invention adopts a forward growth process to grow the acoustic impedance matching layer, thereby improving the thickness accuracy of the acoustic impedance matching layer and further improving the performance of the array ultrasonic transducer.

Description

technical field [0001] The invention relates to the technical field of ultrasonic transducers, and more specifically relates to an array ultrasonic transducer and a manufacturing method thereof. Background technique [0002] In recent years, the use of novel physical properties and effects of phononic crystals and acoustic metamaterial surfaces to improve the acoustic matching performance of ultrasonic transducers has been reported by many scholars. As a synthetic composite structural material, acoustic metamaterials are composed of subwavelength scale structural units (or artificial "atoms"), which can present equivalent material parameters that natural materials do not have in nature, such as negative mass density, Negative elastic modulus, near-zero refractive index and extreme anisotropy, etc. Different from other artificial materials such as phononic crystals, the macroscopic physical properties of acoustic metamaterials mainly depend on the local properties of their s...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B06B1/06
Inventor 马腾张琪黄继卿李永川郑海荣
Owner 深圳皓影医疗科技有限公司
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