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Underwater scanning measurement device and measurement method thereof

A technology of scanning device and measuring device, applied in the direction of measuring device, measuring vibration, vibration measurement in fluid, etc., can solve the problems of low test accuracy, inability to flexibly formulate measurement plan, etc., and achieve good sound permeability, flexible measurement plan, The effect of high positioning accuracy

Inactive Publication Date: 2012-07-18
武汉普惠海洋光电技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since the position of the test sensor and the target to be measured are relatively fixed in this test method, only the data of the local sound field of the test target can be obtained, the test accuracy is low, and the measurement plan cannot be flexibly formulated according to actual needs

Method used

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  • Underwater scanning measurement device and measurement method thereof
  • Underwater scanning measurement device and measurement method thereof
  • Underwater scanning measurement device and measurement method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0026] Such as figure 1 As shown, this embodiment includes a scanning device and an electronic control device connected to the scanning device, and the electronic control device includes a computer and a motion controller connected to the computer, such as figure 2 As shown, the scanning device includes a mounting frame 1, a scanning frame 3 and a servo transmission mechanism 2, the scanning frame and the mounting frame are slidingly connected through the servo transmission mechanism, and a hydrophone 4 is installed on the scanning frame. CAN bus or wireless connection is adopted between the servo transmission mechanism of the scanning device and the motion controller of the electric control device, and between the motion controller and the computer.

[0027] The servo transmission mechanism in this embodiment is composed of a motor 5 and a slider 6 fixedly connected with the scanning frame. Driven by the motor, the slider slides along the mounting frame, and then drives the ...

Embodiment 2

[0037] Such as image 3 As shown, the difference between this embodiment and Embodiment 1 is that the scanning frame 3 adopts a vertical scanning frame, which is composed of a cantilever, a carbon fiber rod with a diameter of 16 mm and an aluminum alloy joint connecting the two, and the carbon fiber rod uses a positioning pin It is connected and fixed at the end of the cantilever by screwing. Considering that the strength of the joint directly affects the accuracy of the final scan, the joint is made of high-strength aluminum alloy instead of non-metallic materials. The distance between the hydrophones is 200mm, and the distance between the hydrophones and the cut plane of the arc vertex on the side of the cabin is 200mm. The vertical scanning frame is installed on the slider in a cantilever manner, and the driving force of the motor is first transmitted to the timing belt through the gear, and then transmitted to the cantilever end gear by the timing belt. The movement in th...

Embodiment 3

[0039] This embodiment includes a scanning device and an electronic control device connected to the scanning device, the electronic control device includes a computer and a motion controller connected to the computer, and the scanning device includes a mounting frame 1, a scanning frame 3 and a servo transmission mechanism 2. The scanning frame is slidably connected to the mounting frame through a servo transmission mechanism, and the hydrophone 4 is installed on the scanning frame. CAN bus or wireless connection is adopted between the servo transmission mechanism of the scanning device and the motion controller of the electric control device, and between the motion controller and the computer.

[0040] Such as Figure 4 As shown, the installation frame of this embodiment is made up of two parallel guide rails, and the guide rails are installed on two guardrails of the submarine, and guide rail spacers are arranged at intervals on the guardrails. Adjust it to a plane, and the...

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Abstract

The invention relates to an underwater scanning measurement device and a measurement method thereof. The underwater scanning measurement device comprises a scanning device and an electric control device connected with the scanning device, wherein the scanning device comprises a mounting frame, a scanning frame and a servo transmission mechanism; the scanning frame is slidably connected with the mounting frame through the servo transmission mechanism; the electric control device comprises a computer and a movement controller connected with the computer; and the scanning frame is provided with a hydrophone. The measurement method utilizes a wireless transmission technology to feed data obtained by scanning back to the computer by the movement controller through utilizing the computer to control a movement manner of the scanning frame, so as to analyze and synthesize. According to the underwater scanning measurement device and method, disclosed by the invention, parameters including suitable scanning steps and the like are selected according to actual requirements, such as parameters including sizes and measurement frequencies, of a detected sound structure body; a corresponding scanning array is provided according to the shape and working characteristics of the detected sound structure body, so as to carry out two-dimensional scanning; and therefore, a measurement scheme is flexible and automatic intelligentization is realized.

Description

technical field [0001] The invention belongs to the field of underwater measuring devices, and in particular relates to an underwater scanning measuring device and a measuring method thereof. Background technique [0002] At present, the problem of vibration and noise of underwater targets has been paid more and more attention by various countries. The traditional underwater acoustic testing methods mostly use fixed sensors or sensor arrays to test underwater targets at fixed points or fixed surfaces. Since the position of the test sensor is relatively fixed with the target to be tested, this test method can only obtain the data of the local sound field of the test target, the test accuracy is low, and the measurement plan cannot be flexibly formulated according to actual needs. How to measure the vibration and noise of underwater targets more effectively and comprehensively has also become a very urgent problem. Contents of the invention [0003] The technical problem to...

Claims

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Application Information

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IPC IPC(8): G01H3/00
Inventor 何元安聂佳申和平王萍林建建
Owner 武汉普惠海洋光电技术有限公司
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