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Method for generating standard torsional vibration signals

A signal generation and signal technology, which is applied in the field of power engineering, can solve the problems of inconvenient signal comparison for users and the inability to display torsional vibration signal parameters and waveforms online, and achieve the effects of friendly working interface, adjustable number of teeth, and stable signal output

Inactive Publication Date: 2011-05-11
HARBIN ENG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The above-mentioned electronic torsional vibration calibration devices all use special circuits to realize their respective functions, and special hardware development is required; none of them can display the simulated torsional vibration signal parameters and waveforms online, which is inconvenient for users to compare signals

Method used

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  • Method for generating standard torsional vibration signals
  • Method for generating standard torsional vibration signals
  • Method for generating standard torsional vibration signals

Examples

Experimental program
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Embodiment Construction

[0025] The invention is realized by a device composed of software composed of a parameter setting module, a signal generating module, a signal output display module and a D / A output card sequentially connected.

[0026] to combine figure 1 , set the following parameters in the parameter setting module: channel setting, tooth number setting, amplitude setting, frequency setting, voltage limit setting; channel setting is used to select the output channel of the D / A output card; tooth number setting can make the output standard torque The vibration signal is suitable for working conditions with different numbers of teeth; the amplitude setting can make the voltage amplitude of the output signal change as needed; the frequency setting is to set two different frequencies to simulate the actual torsional vibration signal; the voltage limit setting can protect The role of circuits and devices. After reading the above parameters, judge whether the parameter setting is reasonable, tha...

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Abstract

The invention provides a method for generating standard torsional vibration signals, which comprises the processes of parameter setting, signal generation, signal output display and output, and comprises the following steps: firstly, judging whether the set parameter is reasonable or not, namely whether the amplitude is more than the lower limit and less than the upper limit or not, resetting theparameter if the set parameter is not reasonable, and entering the signal generation process if the set parameter is reasonable; generating analog signals arranged in two sequences with different frequencies according to the set parameter, namely firstly generating the signals of frequency 1, and storing the signals in an array 1; then generating the signals of frequency 2, storing the signals inan array 2, and finally putting the signals in the two arrays into a unified array in turn; and continuously inputting the finally generated signals to a D / A output card in the same sampling frequency to output the signals. The signal output channel is selectable, the output frequency is adjustable, the number of teeth is adjustable, the signal output is stable, the working interface is friendly,the output parameter can be modified at any time, the reading of the data is convenient, and the application range is broad.

Description

(1) Technical field [0001] The invention relates to a method for generating a standard signal, specifically a method for generating and outputting a standard torsional vibration signal, which belongs to the field of power engineering. (2) Background technology [0002] Calibration is required in the research, development and use stages of torsional vibration instruments. A stable and reliable torsional vibration signal generator (namely torsional vibration calibrator) is an important means for calibrating torsional vibration testing instruments. [0003] The traditional torsional vibration calibration device is a mechanical torsional vibration calibration table, which has various types such as parallel slider type, universal joint type, planetary wheel type, and double motor type. Through literature search, it is found that there are 2 related literatures related to the content of mechanical torsional vibration calibration table. They are: Chinese Patent Application No. 892...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01H1/10
Inventor 李玩幽郭宜斌丁勇
Owner HARBIN ENG UNIV
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