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Micro blind area focusing ultrasonic probe for manually detecting composite material component

A composite material component, manual detection technology, applied in the direction of analyzing materials, using sonic/ultrasonic/infrasonic waves for material analysis, measuring devices, etc., can solve the problems of increasing the blind area of ​​composite material surface detection, reducing the reliability and efficiency of detection results, etc. Achieve the effect of reducing detection blind spots, improving reliability and efficiency

Inactive Publication Date: 2017-03-29
AVIC BEIJING INST OF AERONAUTICAL MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, most ultrasonic transducers excite narrow-band multiple-cycle ultrasonic pulses, which will increase the detection blind area on the surface of composite materials, resulting in a serious decrease in the reliability and efficiency of detection results.

Method used

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  • Micro blind area focusing ultrasonic probe for manually detecting composite material component
  • Micro blind area focusing ultrasonic probe for manually detecting composite material component

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Experimental program
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Embodiment Construction

[0012] The present invention will be described in further detail below in conjunction with the accompanying drawings and embodiments.

[0013] See attached figure 1 , figure 2 As shown, this kind of micro-blind spot focused ultrasonic probe for manually detecting composite material components is characterized in that: the probe includes an ultrasonic transducer 1 and a sealing cover 2 set on the ultrasonic transducer 1, and one end of the sealing cover 2 is connected to the The outer surface of the ultrasonic transducer 1 is in contact with a sealing ring 6 for sealing. The inner surface of the other end of the sealing cover 2 is processed with internal threads, and the left end of the couplant cavity housing 3 is inserted Installed between the open end of the sealing cover 2 and the outer surface of the ultrasonic transducer 1, the external thread on the left end of the couplant cavity housing 3 is connected with the internal thread on the open end of the sealing cover 2, a...

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PUM

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Abstract

The invention relates to a micro blind area focusing ultrasonic probe for manually detecting a composite material component, and is used for manually detecting internal defects of a composite material. The ultrasonic probe comprises an ultrasonic transducer, a sealing cover, a coupling agent inner cavity shell, a water bag and a water distance adjusting support. According to the ultrasonic probe, a stable coupling layer is guaranteed to be formed between the transducer and the surface of a detected composite material component, and material damage due to water immersion or water spraying coupling of a medium during ultrasonic detection is avoided; a sound beam focal point is guaranteed to be accurately positioned on the surface or near the surface of the composite material, and the water distance is continuously adjustable during detection; the incident resolving power of an ultrasonic pulse is guaranteed, the detection blind area is reduced, and the reliability and efficiency of the composite material ultrasonic manual detection are improved.

Description

technical field [0001] The invention relates to a micro-blind zone focused ultrasonic probe for manual detection of composite material components, which belongs to the technical field of non-destructive testing. Background technique [0002] Focused ultrasonic transducers are widely used in composite material testing. Automatic testing is generally used in the testing process. However, as the shape of composite material products becomes complex and the demand for in-situ testing increases, manual testing can only be used when automatic testing cannot be used. detection. When the focused ultrasonic transducer is manually inspected, the inspector shall hold the ultrasonic focused transducer to ensure that the axis of the sound beam is perpendicular to the surface of the workpiece to be inspected, as well as the distance between the transducer and the workpiece. The position and direction of the detector are completely controlled by the hand-held suspension of the inspector. I...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N29/24
CPCG01N29/2456G01N2291/023
Inventor 孔焕平唐佳刘洲刘春江何玉怀姜涛刘丽玉赵莉
Owner AVIC BEIJING INST OF AERONAUTICAL MATERIALS
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