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Structural component self-resonant frequency measuring method and device

A technology of self-resonant frequency and measurement method, which is used in measurement devices, measurement of resonance frequency, measurement of ultrasonic/sonic/infrasonic waves, etc.

Inactive Publication Date: 2018-06-08
SUZHOU SWIFT HI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] In view of this, in order to solve the inspection problem of the self-resonant frequency and quality factor of structural parts, the embodiment of the present application provides a method and device for measuring the self-resonant frequency of structural parts

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  • Structural component self-resonant frequency measuring method and device
  • Structural component self-resonant frequency measuring method and device
  • Structural component self-resonant frequency measuring method and device

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Embodiment Construction

[0025] In order to make the purpose, technical solution and advantages of the present application clearer, the technical solution of the present application will be clearly and completely described below in conjunction with specific embodiments of the present application and corresponding drawings. Apparently, the described embodiments are only some of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of this application.

[0026] The structural member of the embodiment is an example of a stainless steel shell.

[0027] figure 1 It is a schematic diagram of an embodiment of a stainless steel shell. The stainless steel shell (structural part) includes a top 11 and a bottom 12. The bottom is concave, and the bottom surface 13 is horizontal. When the bottom surface is in c...

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Abstract

The invention discloses a structural component self-resonant frequency measuring method and device, and solves the problem of detection of the structural component self-resonant frequency and the quality factor. The method comprises the steps that a sweep frequency signal of which the frequency continuously changes is converted into a first acoustic wave; the top part of the structural component is scanned by using the first acoustic wave; the first acoustic wave passes through the structural component to form a second acoustic wave in the closed space; the second acoustic wave is converted into a frequency signal; and data processing is performed on the frequency signal so as to obtain the self-resonant frequency. The device comprises a scanning signal generator, a loudspeaker, sound absorbing cotton, a sound pickup and an upper computer. The problem of rapid detection of batches of structural components can be solved so that the repeatability is great and the accuracy is high withoutdamage to the surface coating layer.

Description

technical field [0001] The invention relates to the field of design machinery, in particular to a method and device for measuring the self-resonant frequency of structural parts. Background technique [0002] In industrial products, structural parts are widely used, and in some special fields, there are very strict requirements on the consistency of incoming materials for structural parts. Since there are more than one procurement channels for structural parts and the batches of purchase are different, there may be differences in the status of incoming materials for structural parts, such as material, thickness, and quality. [0003] Taking the inductive rainfall test equipment as an example, the equipment contains a hemispherical stainless steel shell. Factors such as the material, thickness, and quality of the steel shell determine whether the steel shell can make a consistent sound when the raindrops hit it. Technically speaking, it is The self-resonance frequency and qu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01H13/00G01N29/12
CPCG01H13/00G01N29/12G01N2291/0234
Inventor 王险峰水建忠闾灿
Owner SUZHOU SWIFT HI TECH CO LTD
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