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ultrasonic transducer

An ultrasonic transducer and transducer technology, used in instruments, scientific instruments, material analysis using sonic/ultrasonic/infrasonic waves, etc., can solve the problems of insufficient resolution, insufficient probe sensitivity, and insufficient probe frequency. The effect of increasing sensitivity

Active Publication Date: 2020-08-28
SHENZHEN SHENKE ADVANCED INVESTMENT MANAGEMENT CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The inventors of the present application have found in long-term research that when the workpiece to be detected has a cylindrical hole and needs to detect subtle defects near the cylindrical surface, the frequency of the existing probe is not high enough, and the ultrasonic wave can only reach through other surfaces on the workpiece. Near the cylindrical surface, so as to indirectly detect the defects near the cylindrical surface, that is to say, the existing probes are not sensitive enough and the resolution is not enough

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Embodiment Construction

[0013] The following will clearly and completely describe the technical solutions in the embodiments of the present application with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, not all of them. Based on the embodiments in the present application, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present application.

[0014] refer to Figure 1 to Figure 3 , figure 1 It is a structural schematic diagram of an embodiment of the ultrasonic transducer of the present application, figure 2 yes figure 1 The cross-sectional view of the ultrasonic transducer in A-A direction, image 3 yes figure 1 The cross-sectional view of the ultrasonic transducer along the B-B direction in . The ultrasonic transducer 100 includes a first ultrasonic transducer array 10 and a seco...

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Abstract

The invention discloses an ultrasonic transducer. The ultrasonic transducer comprises a first ultrasonic transducer array and a second ultrasonic transducer array; the first ultrasonic transducer array is a phased array ultrasonic transducer and comprises a plurality of independent first array elements, and the multiple independent first array elements are arranged in a plane surface mode and usedfor detecting a plane surface; and the second ultrasonic transducer array is a convex array transducer array and comprises a plurality of independent second array elements, and the multiple second independent second array elements are arranged in a curved surface mode and used for detecting a curved surface. According to the ultrasonic transducer, defects of a workpiece in an irregular shape canbe detected, and the sensitivity of detection is improved.

Description

technical field [0001] The present application relates to the technical field of transducers, in particular to an ultrasonic transducer. Background technique [0002] In terms of ultrasonic nondestructive testing technology, the frequency of commonly used ultrasonic testing probes is low, many of which are within 10MHz, of which single probes account for the majority, and some probes are phased array probes. The commonly used ultrasonic phased array probe is designed based on the Huygens principle. The probe has array elements arranged one-dimensionally in the azimuth direction. Each array element is independent of each other. Each array element is controlled according to a certain electronic delay. Excitation, thus forming a new ultrasonic front, by applying different electronic delays, the ultrasonic beam will be deflected to meet various detection needs. [0003] The inventors of the present application have found in long-term research that when the workpiece to be detec...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B06B1/02G01N29/24
CPCB06B1/0207G01N29/2437
Inventor 冯伟黄林冰张艳辉张晨宁孙健铨冯亚春
Owner SHENZHEN SHENKE ADVANCED INVESTMENT MANAGEMENT CO LTD