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Method and system for measuring amplitude curve of mechanical vibration

A technology of amplitude curve and mechanical vibration, applied in the direction of measuring device, measuring ultrasonic/sonic wave/infrasonic wave, instrument, etc., can solve the problems of poor precision and low response frequency, and achieve accurate measurement amplitude value, high measurement response frequency, and system structure Simple Effects with Light Path

Active Publication Date: 2013-10-16
XIAN HUANIC OPTOELECTRONICS CORP
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Problems solved by technology

[0003] The purpose of the present invention is to solve the problems of poor accuracy and low response frequency existing in the amplitude curve measurement method of mechanical vibration

Method used

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  • Method and system for measuring amplitude curve of mechanical vibration

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Embodiment Construction

[0022] In order to solve the problems of poor precision and low response frequency existing in the existing amplitude curve measurement method of mechanical vibration, this embodiment provides a method for measuring the amplitude curve of mechanical vibration, including the following steps:

[0023] 1) Set the initial standard value;

[0024] 2), data collection;

[0025] 3) The data is saved and cleared.

[0026] Among them, the implementation process of step 1) is:

[0027] 1.1) Install a line laser module on a solid wall away from the test system;

[0028] 1.2) A plurality of acquisition boxes are arranged in sequence on the planned measurement points on the measurement axis of the system under test, and the planned measurement points are distributed in an approximately straight line along the measurement axis, and avoid the light sensitivity of the high-speed linear array CCD of the plurality of acquisition boxes The measurement points on the surface block the received ...

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Abstract

The invention belongs to the technical field of laser measurement and provides a method for measuring an amplitude curve of mechanical vibration, which comprises the following steps: (1) setting an initial standard value; (2) collecting data; and (3) storing the data and resetting. The invention also provides a system for measuring the amplitude curve of mechanical vibration, which comprises a line laser module, a plurality of collecting boxes arranged on an emergent light path of the line laser module, and a control box, wherein the control box is mainly used for receiving a command of a PC (Personal Computer), controlling the collecting boxes, transmitting data and managing a power supply; and the collecting boxes are sequentially arranged on planned measuring points on a measuring axis of the system to be tested and are in approximately linear distribution, so that measuring points of a photosensitive surface of a high speed linear CCD (Charge Coupled Device) of the collecting boxes cannot mutually shade received laser. The problems that the existing method for measuring the amplitude curve of mechanical vibration has poor accuracy and low response frequency are solved, the structure and the light path are simpler, the measurement response frequency is higher, the measurement amplitude value is accurate, the installation is simple, and the operation is easy.

Description

technical field [0001] The invention belongs to laser measurement technology, and relates to a non-contact laser measurement technology, in particular to a method and system for measuring the amplitude curve of mechanical vibration. Background technique [0002] At present, the amplitude curve measurement method of mechanical vibration is mostly non-contact measurement, and linear array CCD is mostly used for measurement, but the amplitude accuracy of the vibration measurement is poor. Due to the influence of optoelectronic devices and electronic systems, the response frequency of the vibration measurement is relatively low. Low, and the structure and optical system are more complex. Contents of the invention [0003] The purpose of the invention is to solve the problems of poor precision and low response frequency existing in the amplitude curve measurement method of mechanical vibration. [0004] In order to achieve the above object, the invention provides a method for ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01H9/00
Inventor 孙建华袁科
Owner XIAN HUANIC OPTOELECTRONICS CORP
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