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Displacement and acoustic emission integrated sensing device

A technology of acoustic emission sensors and sensing devices, applied in measuring devices, using acoustic wave emission technology for material analysis, using sound waves/ultrasonic waves/infrasonic waves to analyze solids, etc., can solve the problem of poor bearing capacity and performance measurement accuracy, and structural damage status monitoring Problems such as poor diagnostic ability and other problems, to achieve the effect of improving detection accuracy and detection efficiency

Active Publication Date: 2019-08-23
BEIJING RES INST OF MECHANICAL & ELECTRICAL TECH
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Problems solved by technology

[0004] The invention provides a displacement and acoustic emission integrated sensing device, which can solve the technical problems of poor bearing capacity and performance measurement accuracy of the structure measured in the high-temperature mechanical-thermal test and poor structural damage state monitoring and diagnosis capabilities in the prior art

Method used

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  • Displacement and acoustic emission integrated sensing device

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Embodiment Construction

[0018] It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. 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. The following description of at least one exemplary embodiment is merely illustrative in nature and in no way taken as limiting the invention, its application or uses. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0019] It should be noted that the terminology used here is only for describing specific implementations, and is not intended to limit t...

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Abstract

The invention provides a displacement and acoustic emission integrated sensing device. The displacement and acoustic emission integrated sensing device includes a waveguide rod, a space positioning module, an acoustic emission sensor and a displacement sensor. One end of the waveguide rod is in contact with a to-be-detected object. One end of the space positioning module is connected to the otherend of the waveguide rod. The space positioning module is provided with an accommodating cavity. The acoustic emission sensor is arranged on the other end of the waveguide rod and located in the accommodating cavity. The space positioning module positions and clamps the acoustic emission sensor through the accommodating cavity. The acoustic emission sensor is used for detecting an acoustic emission signal which is emitted by the to-be-detected object and transmitted by the waveguide rod. The displacement sensor is connected to the other end of the space positioning module. The displacement sensor is used for detecting displacement generated by the to-be-detected object. The displacement and acoustic emission integrated sensing device of the invention can be used to solve the technical problems in the prior art of poor bearing capacity of a to-be-detected structure and poor performance measurement precision in a high-temperature thermodynamic test and poor structural damage state monitoring and diagnosis capability.

Description

technical field [0001] The invention relates to the technical field of spacecraft structure damage monitoring, in particular to a displacement and acoustic emission integrated sensing device. Background technique [0002] Adjacent space refers to the vast airspace with an altitude between 20km and 100km, which is between the traditional sky and the sky. With the rapid development of military theory and military requirements, the defense and strike capabilities in the near-space domain have received widespread attention, and are gradually becoming one of the key development areas of various military powers. As the core weapon system of this airspace operation, near-space vehicles are the main research objects in the field of aerospace integration in the world today. They have the capabilities of rapid response, strong penetration, strong destruction, high maneuverability, and precision strikes. Chemical warfare has had a revolutionary impact. Near-space vehicles are subject...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N29/04G01N29/14G01B17/00
CPCG01B17/00G01N29/04G01N29/14G01N2291/0234G01N2291/2675
Inventor 高勇肖登红李乃田孟繁超叶全红张苏周小红仝宗凯魏域鹏
Owner BEIJING RES INST OF MECHANICAL & ELECTRICAL TECH
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