Magnetic control flexible ultrasonic transduction device

A technology of ultrasonic transduction and ultrasonic transducer, which is applied in the fields of ultrasonic detection, ultrasonic therapy, and ultrasonic imaging. It can solve the problems of physical damage to surface contact tissues, etc., and achieve the effects of small size, solving application difficulties, and controllable costs.

Active Publication Date: 2022-03-01
ZHEJIANG LAB
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the interface reflection and attenuation on the sound propagation path, the flexible ultrasound at this stage cannot achieve precise acoustic focusing of multiple ultrasonic transducer structures. Physical damage (thermal effects or cavitation effects)

Method used

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  • Magnetic control flexible ultrasonic transduction device
  • Magnetic control flexible ultrasonic transduction device
  • Magnetic control flexible ultrasonic transduction device

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Embodiment 2

[0082] Embodiment 2 of the present invention adds a magnetic flux gathering structure 1201 on the basis of Embodiment 1, including a magnetically permeable layer flexible support 12012 and a high-permeability magnetically permeable layer 12011 . Among them, the flexible support 12012 material of the magnetic conductive layer is Eco-flex-0030 with low Young's modulus, and the thickness of the spin coating is less than 30 μm, preferably 10-30 μm, and 10 μm is selected in this case. The high permeability magnetic layer 12011 is made of a composite material coated with high magnetic permeability soft magnetic material particles; the coating matrix material can be flexible Eco-flex-0030; the high magnetic permeability soft magnetic material particles are made of slope Molybdenum alloy, FeSi alloy, FeCoSiB, FeCrAlSi, FeSiBC, FeSiCrNi, etc.; thickness < 20μm, choose 20μm in case 2. Further, the magnetic flux gathering structure 1201 is arranged on the side of the upper half of the ma...

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PUM

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Abstract

The invention provides a magnetic control flexible ultrasonic transduction device. The magnetic control flexible ultrasonic transduction device comprises an ultrasonic transducer structure, a flexible link structure, a magnetism generation structure and a magnetic detection structure. Wherein the flexible link structure realizes the link between the adjacent ultrasonic transducer structures in the deformation process; the magnetism generation structure and the magnetic detection structure are located on the adjacent ultrasonic transducer structures; the magnetism generation structure is used for generating a magnetic field with certain intensity and spatial distribution under an external electric signal; the magnetic detection structure senses magnetic response changes caused by deformation, and relative position measurement between the adjacent ultrasonic transducer structures before and after random deformation of the flexible ultrasonic adjacent ultrasonic transducer structures is achieved. The magnetic control flexible ultrasonic transduction device disclosed by the invention has the advantages of low cost, small size and wearable performance, and solves the problem that an existing flexible ultrasonic device cannot automatically detect the relative spatial position between adjacent ultrasonic transducer structures before and after deformation; and precise electronic control sound field focusing of a flexible ultrasonic adjacent ultrasonic transducer structure cannot be realized.

Description

technical field [0001] The invention relates to the technical fields of ultrasonic imaging, ultrasonic treatment and ultrasonic detection, in particular to a magnetically controlled flexible ultrasonic transducer. Background technique [0002] In recent years, ultrasonic transducers based on piezoelectric bulk materials have been widely used in the fields of biomedical imaging detection and disease treatment, industrial non-destructive flaw detection, and ocean detection. However, conventional ultrasonic transducers are rigid and non-deformable, and a single probe with a fixed specification can only achieve close contact with certain shapes / specific positions of biological tissues and the surface of the structure to be measured. In applications such as transcranial ultrasound, ultrasonic bone healing, and complex surface workpiece structure detection, close surface contact cannot be achieved, and the application of ultrasound is limited. [0003] Ultrasonic transducers link...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B06B1/04B06B1/06
CPCB06B1/04B06B1/06
Inventor 刘项力郭希山郑音飞张京
Owner ZHEJIANG LAB
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