CN106226405B - The Sensitivity Calibration method and apparatus of Railway wheelset ultrasonic test equipment - Google Patents
The Sensitivity Calibration method and apparatus of Railway wheelset ultrasonic test equipment Download PDFInfo
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- CN106226405B CN106226405B CN201610792814.2A CN201610792814A CN106226405B CN 106226405 B CN106226405 B CN 106226405B CN 201610792814 A CN201610792814 A CN 201610792814A CN 106226405 B CN106226405 B CN 106226405B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
- G01N29/22—Details, e.g. general constructional or apparatus details
- G01N29/30—Arrangements for calibrating or comparing, e.g. with standard objects
Abstract
The embodiment of the present application discloses a kind of Sensitivity Calibration method and apparatus of Railway wheelset ultrasonic test equipment, and the method obtains preset basic gain first；Emit ultrasonic wave using preset frequency later, and acquires the wave amplitude that designated position of the probe of ultrasonic test equipment on template wheel is returned；Then operation is carried out to the wave amplitude using preset algorithm, obtains compensating gain, the basic gain is added with the compensating gain, obtains flaw detection sensitivity；Finally use the flaw detection sensitivity as the sensitivity of the Railway wheelset ultrasonic test equipment.As can be seen that being demarcated automatically to the sensitivity of ultrasonic test equipment after operation can be carried out to the wave amplitude of acquisition in the technical solution of the application, meeting the needs of real work.
Description
Technical field
This application involves railroad train technical field more particularly to a kind of sensitivity of Railway wheelset ultrasonic test equipment
Scaling method and device.
Background technique
In train, the critical component that wheel and axle are walked as train, the quality of quality directly affects train fortune
Capable safety.
During train operation, due to factors such as various stress, wheel or axle will cause to a certain degree
Loss or damage, therefore, it is necessary to periodically be detected to wheel or axle, in order to find lacking for wheel or axle in time
It falls into, to guarantee the safe operation of train.
In the prior art, Railway wheelset ultrasonic test equipment can be used to detect wheel or axle, make
Before defect-detecting equipment, need in advance to demarcate the sensitivity of defect-detecting equipment, by defect-detecting equipment using sensitivity as work
When standard signal, detection operation then is carried out to wheel or axle again, obtains the testing result of wheel or axle.
Therefore, a kind of Sensitivity Calibration method of Railway wheelset ultrasonic test equipment is needed to meet the need of real work
It wants.
Summary of the invention
In view of this, this application provides a kind of Sensitivity Calibration method of Railway wheelset ultrasonic test equipment and dresses
It sets.
To achieve the above object, the application provides the following technical solutions:
The invention discloses a kind of Sensitivity Calibration methods of Railway wheelset ultrasonic test equipment, comprising:
Obtain preset basic gain；
The ultrasonic wave of ultrasonic test equipment transmitting predeterminated frequency is controlled, and is acquired by the probe of ultrasonic test equipment
The wave amplitude that designated position on template wheel is returned；
Operation is carried out to the wave amplitude using preset algorithm, obtains compensating gain；
The basic gain is added with the compensating gain, obtains flaw detection sensitivity；
Use the flaw detection sensitivity as the sensitivity of the Railway wheelset ultrasonic test equipment.
Preferably, it is described obtain flaw detection sensitivity after further include:
The increase gain of user's input is obtained, the increase gain is for characterizing coupling error；
The flaw detection sensitivity is added with the increase gain, obtains Scanning sensitivity；
It is described that calibration behaviour is carried out to the sensitivity of the Railway wheelset ultrasonic test equipment using the flaw detection sensitivity
As using the Scanning sensitivity to carry out proving operation to the sensitivity of the Railway wheelset ultrasonic test equipment.
Preferably, further includes:
The result of proving operation is shown, and the result is stored in calibration report file.
Preferably, described operation is carried out to the wave amplitude using preset algorithm to obtain compensating gain and specifically include:
According to formula: compensating gain=- 20 × (㏒ 10 (wave amplitude/80)) calculate the compensating gain.
Another aspect of the present invention discloses a kind of sensitivity calibration device of Railway wheelset ultrasonic test equipment, comprising:
First obtains module, for obtaining preset basic gain；
Acquisition module for controlling the ultrasonic wave of ultrasonic test equipment transmitting predeterminated frequency, and passes through ultrasonic examination
The wave amplitude that designated position of the probe acquisition of equipment on template wheel is returned；
First computing module obtains compensating gain for carrying out operation to the wave amplitude using preset algorithm；
Second computing module obtains flaw detection sensitivity for the basic gain to be added with the compensating gain；
Demarcating module, for use the flaw detection sensitivity to the sensitivity of the Railway wheelset ultrasonic test equipment into
Row proving operation.
Preferably, further includes:
Second obtains module, and for obtaining the increase gain of user's input, the increase gain is for characterizing coupling error；
It is sensitive to obtain scanning for the flaw detection sensitivity to be added with the increase gain for third computing module
Degree；
The demarcating module is for using the flaw detection sensitivity as the spirit of the Railway wheelset ultrasonic test equipment
Sensitivity.
Preferably, further includes:
The result for showing the result of proving operation, and is stored in calibration report file by display module
In.
Preferably, described operation is carried out to the wave amplitude using preset algorithm to obtain compensating gain and specifically include:
According to formula: compensating gain=- 20 × (㏒ 10 (wave amplitude/80)) calculate the compensating gain.
It can be seen via above technical scheme that the embodiment of the present application discloses a kind of Railway wheelset ultrasonic test equipment
Sensitivity Calibration method and apparatus, the method obtain preset basic gain first；Emitted later using preset frequency super
Sound wave, and acquire the wave amplitude that designated position of the probe of ultrasonic test equipment on template wheel is returned；Then using default
Algorithm operation is carried out to the wave amplitude, obtain compensating gain, the basic gain be added with the compensating gain, is visited
Hurt sensitivity；Finally use the flaw detection sensitivity as the sensitivity of the Railway wheelset ultrasonic test equipment.It can see
Out, it after the wave amplitude progress operation of acquisition being obtained compensating gain in the technical solution of the application, is calculated with preset basic gain
After obtain flaw detection sensitivity, using flaw detection sensitivity as the sensitivity of Railway wheelset ultrasonic test equipment, real vehicle is examined
It surveys, meets the needs of real work.
Detailed description of the invention
In order to illustrate the technical solutions in the embodiments of the present application or in the prior art more clearly, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
The embodiment of application for those of ordinary skill in the art without creative efforts, can also basis
The attached drawing of offer obtains other attached drawings.
Fig. 1 is a kind of flaw detection sensitivity scaling method of Railway wheelset ultrasonic test equipment disclosed in the embodiment of the present application
Flow chart；
Fig. 2 is the flaw detection sensitivity scaling method that the embodiment of the present application discloses a kind of Railway wheelset ultrasonic test equipment
Another flow chart；
Fig. 3 is a kind of flaw detection sensitivity caliberating device of Railway wheelset ultrasonic test equipment disclosed in the embodiment of the present application
Structural schematic diagram.
Specific embodiment
Below in conjunction with the attached drawing in the embodiment of the present application, technical solutions in the embodiments of the present application carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of embodiments of the present application, instead of all the embodiments.It is based on
Embodiment in the application, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall in the protection scope of this application.
The embodiment of the present application discloses the flaw detection sensitivity scaling method and dress of a kind of Railway wheelset ultrasonic test equipment
It sets.
Fig. 1 is a kind of process signal of the Sensitivity Calibration method of Railway wheelset ultrasonic test equipment provided by the present application
Figure.
Referring to Fig. 1, a kind of Sensitivity Calibration method of Railway wheelset ultrasonic test equipment includes:
S101, preset basic gain is obtained；
It should be noted that being provided with software systems in Railway wheelset ultrasonic test equipment in the embodiment of the present application, use
To carry and realize the technical solution of the application.
Before scheme execution, relevant staff can first confirm that the spy of template wheel Yu Railway wheelset ultrasonic equipment
Couple state between head executes the technical solution of the application in the case where confirming the good situation of couple state later.Due to probe
The influence of the factors such as the material of itself, the material of template wheel and environment, it is possible to will cause template wheel and Railway wheelset ultrasound
Couple state between the probe of wave device is undesirable, therefore, before concrete operations, needs first to determine couple state.
Firstly, first obtaining preset basic gain, wherein basic gain is stored in pre-set configuration file, is matched
Setting file has corresponding parameter GainNorm to characterize the basic gain.Configuration file is according to staff according to practical behaviour
After work, the file containing many kinds of parameters of institute's typing.
The ultrasonic wave of S102, control ultrasonic test equipment transmitting predeterminated frequency, and the spy for passing through ultrasonic test equipment
The wave amplitude that designated position of the head acquisition on template wheel is returned；
After obtaining basic gain success, the probe that can control ultrasonic test equipment emits ultrasonic wave using preset frequency
Or emit the ultrasonic wave of predeterminated frequency by specific component, the preset frequency can by staff according to scene and
The difference of template wheel is specifically arranged.
The wave amplitude that designated position of the acquisition probe on template wheel is returned later.Wherein, template wheel is and examined material
Expect reference block made of acoustical behavior and the same or similar material of surface state, each template wheel is provided with different lack
It falls into, set defect i.e. designated position described herein on template wheel, such as one 5mm is set using national standard
Hole, staff is in advance by probe placement on this hole, that is, is placed on designated position.
It should be noted that probe in the embodiment of the present application can be it is multiple, when probe is multiple, spy can be configured
The operation channel of head, each one corresponding operation channel of probe setting, each probe are come using corresponding operation channel
Sending and receiving data.Staff is in advance by multiple probe placements on the designated position of different multiple template wheels.Do not have one namely
A probe can correspond to different designated positions, can make the corresponding different defect of probe in this way.
S103, operation is carried out to the wave amplitude using preset algorithm, obtains compensating gain；
After obtaining wave amplitude, operation is carried out using preset algorithm to wave amplitude automatically using transmitting wave height, the application is implemented
In example, preferably according to formula: compensating gain=- 20 × (㏒ 10 (wave amplitude/80)) calculate the compensating gain.
S104, the basic gain is added with the compensating gain, obtains flaw detection sensitivity；
Later, the basic gain obtained from configuration file is added with compensating gain, obtains flaw detection sensitivity, that is,
Flaw detection sensitivity=basis gain+compensating gain.
S105, use the flaw detection sensitivity as the sensitivity of the Railway wheelset ultrasonic test equipment.
Finally, using the flaw detection sensitivity as the sensitivity of the Railway wheelset ultrasonic test equipment.Certainly,
It can be and calibrate for error to the sensitivity of Railway wheelset ultrasonic test equipment.
Automatic calibration thus has been carried out to the sensitivity of Railway wheelset ultrasonic test equipment.
It can be seen via above technical scheme that the embodiment of the present application discloses a kind of Railway wheelset ultrasonic test equipment
Sensitivity Calibration method and apparatus, the method obtain preset basic gain first；Control ultrasonic test equipment hair later
The ultrasonic wave of predeterminated frequency is penetrated, and returned by designated position of the probe acquisition of ultrasonic test equipment on template wheel
Wave amplitude；Then operation is carried out to the wave amplitude using preset algorithm, obtains compensating gain, by the basic gain and the benefit
Gain addition is repaid, flaw detection sensitivity is obtained；Finally using the flaw detection sensitivity to the Railway wheelset ultrasonic test equipment
Sensitivity carry out proving operation.As can be seen that after operation can be carried out to the wave amplitude of acquisition in the technical solution of the application, from
It is dynamic that the sensitivity of ultrasonic test equipment is demarcated, meet the needs of real work.
Fig. 2 is a kind of another stream of the Sensitivity Calibration method of Railway wheelset ultrasonic test equipment provided by the present application
Journey schematic diagram.
Referring to fig. 2, a kind of Sensitivity Calibration method of Railway wheelset ultrasonic test equipment includes:
S201, preset basic gain is obtained；
S202, emit ultrasonic wave using preset frequency, and acquire the probe of ultrasonic test equipment on template wheel
The wave amplitude that designated position is returned；
S203, operation is carried out to the wave amplitude using preset algorithm, obtains compensating gain；
S204, the basic gain is added with the compensating gain, obtains flaw detection sensitivity；
In the embodiment of the present application, step S201-S204 is identical as step S101-S104, here, repeating no more.
S205, the increase gain for obtaining user's input, the increase gain is for characterizing coupling error；
S206, the flaw detection sensitivity is added with the increase gain, obtains Scanning sensitivity；
In the embodiment of the present application, in actual use, it is also necessary to consider that coupling error sets Railway wheelset ultrasonic examination
The influence of standby sensitivity, therefore, in the present embodiment, it is also necessary to obtain the increase gain of user's input, increasing gain is one
A numerical value as set by staff, to avoid the occurrence of other than coupling instabilty etc..
S207, use the flaw detection sensitivity as the sensitivity of the Railway wheelset ultrasonic test equipment.
In the embodiment of the present application, the sensitivity of Railway wheelset ultrasonic test equipment carries out used in proving operation being to sweep
Look into sensitivity.
Under normal conditions, all the Railway wheelset ultrasonic examination is set using Scanning sensitivity mostly in actual use
Standby sensitivity is carrying out real vehicle checked operation after carrying out proving operation.
According to the above technical scheme as can be seen that the technical solution of the embodiment of the present application can also avoid coupling instabilty etc.
The generation of fortuitous event.
Preferably, further includes:
The result of proving operation is shown, and the result is stored in calibration report file.
In the embodiment of the present application, while scheme executes, can the result that each step obtains be shown and be stored
Process, for example, wave amplitude can be shown in step S102, S202.Also, after showing wave amplitude, it is also necessary to which work people
Member confirmed, when staff confirms that wave amplitude is strictly to pop one's head in wave amplitude that corresponding designated position returned, sends confirmation
Instruction just executes step S103 or S104 after receiving confirmation instruction.
Certainly, there are also the process shown to the compensating gain in step S103, S203, the process phase shown with above-mentioned wave amplitude
It is similar.
Similar, there are also the processes shown to the result of proving operation, also, above-mentioned data can all be recorded in mark
Determine in report file, and is stored in corresponding amount of physical memory.
In the embodiment of the present application, it will also demarcate report file and be sent to the step of printing equipment is printed.
Come as can be seen that the technical solution in the embodiment of the present application can be automatically generated calibration report file to dependency number
According to the work compared with subsequent processing.The work having great convenience for the user.
Fig. 3 is a kind of a kind of structure of the sensitivity calibration device of Railway wheelset ultrasonic test equipment provided by the present application
Schematic diagram.
Referring to Fig. 3, a kind of sensitivity calibration device of Railway wheelset ultrasonic test equipment provided by the present application, comprising:
First obtains module 301, for obtaining preset basic gain；
Acquisition module 302 is visited for controlling the ultrasonic wave of ultrasonic test equipment transmitting predeterminated frequency, and by ultrasonic wave
Hurt the wave amplitude that designated position of the probe acquisition of equipment on template wheel is returned；
First computing module 303 obtains compensating gain for carrying out operation to the wave amplitude using preset algorithm；
Second computing module 304 obtains flaw detection sensitivity for the basic gain to be added with the compensating gain；
Demarcating module 305, for using the flaw detection sensitivity as the spirit of the Railway wheelset ultrasonic test equipment
Sensitivity.
Preferably, further includes:
Second obtains module, and for obtaining the increase gain of user's input, the increase gain is for characterizing coupling error；
It is sensitive to obtain scanning for the flaw detection sensitivity to be added with the increase gain for third computing module
Degree；
The demarcating module is used for using the Scanning sensitivity to the sensitive of the Railway wheelset ultrasonic test equipment
Degree carries out proving operation.
Preferably, further includes:
Display module is stored in calibration report file for show proving operation, and by the result.
Preferably, described operation is carried out to the wave amplitude using preset algorithm to obtain compensating gain and specifically include:
According to formula: compensating gain=- 20 × (㏒ 10 (wave amplitude/80)) calculate the compensating gain.
It should be noted that a kind of sensitivity calibration device of Railway wheelset ultrasonic test equipment of the present embodiment can be with
Using the scaling method in above method embodiment, can be used to implement all the technical solutions in the foregoing method embodiment,
The function of each functional module can be implemented according to the method in above method embodiment, and specific implementation process can refer to
Associated description in above-described embodiment, details are not described herein again.
It should be noted that all the embodiments in this specification are described in a progressive manner, each embodiment weight
Point explanation is the difference from other embodiments, and the same or similar parts between the embodiments can be referred to each other.
For device class embodiment, since it is basically similar to the method embodiment, so being described relatively simple, related place ginseng
See the part explanation of embodiment of the method.
Finally, it is to be noted that, herein, relational terms such as first and second and the like be used merely to by
One entity or operation are distinguished with another entity or operation, without necessarily requiring or implying these entities or operation
Between there are any actual relationship or orders.Moreover, the terms "include", "comprise" or its any other variant meaning
Covering non-exclusive inclusion, so that the process, method, article or equipment for including a series of elements not only includes that
A little elements, but also including other elements that are not explicitly listed, or further include for this process, method, article or
The intrinsic element of equipment.In the absence of more restrictions, the element limited by sentence "including a ...", is not arranged
Except there is also other identical elements in the process, method, article or apparatus that includes the element.
The foregoing description of the disclosed embodiments can be realized those skilled in the art or using the present invention.To this
A variety of modifications of a little embodiments will be apparent for a person skilled in the art, and the general principles defined herein can
Without departing from the spirit or scope of the present invention, to realize in other embodiments.Therefore, the present invention will not be limited
It is formed on the embodiments shown herein, and is to fit to consistent with the principles and novel features disclosed in this article widest
Range.
The above is only a preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, various improvements and modifications may be made without departing from the principle of the present invention, these improvements and modifications are also answered
It is considered as protection scope of the present invention.
Claims (8)
1. a kind of Sensitivity Calibration method of Railway wheelset ultrasonic test equipment characterized by comprising
Obtain preset basic gain；
The ultrasonic wave of ultrasonic test equipment transmitting predeterminated frequency is controlled, and is acquired by the probe of ultrasonic test equipment in sample
The wave amplitude that designated position on web wheel is returned, the predeterminated frequency are the frequency being arranged based on template wheel, and the template wheel is
Reference block made of material identical with examined Material acoustic performance and surface state；
Operation is carried out to the wave amplitude using preset algorithm, obtains compensating gain；
The basic gain is added with the compensating gain, obtains flaw detection sensitivity；
Use the flaw detection sensitivity as the sensitivity of the Railway wheelset ultrasonic test equipment.
2. scaling method according to claim 1, which is characterized in that it is described obtain flaw detection sensitivity after further include:
The increase gain of user's input is obtained, the increase gain is for characterizing coupling error；
The flaw detection sensitivity is added with the increase gain, obtains Scanning sensitivity；
It is described to be using sensitivity progress proving operation of the flaw detection sensitivity to the Railway wheelset ultrasonic test equipment
Proving operation is carried out to the sensitivity of the Railway wheelset ultrasonic test equipment using the Scanning sensitivity.
3. scaling method according to claim 1 or 2, which is characterized in that further include:
The result of proving operation is shown, and the result is stored in calibration report file.
4. according to claim 1 to scaling method described in 2 any one, which is characterized in that described to use preset algorithm pair
The wave amplitude progress operation obtains compensating gain and specifically includes:
According to formula: compensating gain=- 20 × (㏒10(wave amplitude/80)) calculate the compensating gain.
5. a kind of sensitivity calibration device of Railway wheelset ultrasonic test equipment characterized by comprising
First obtains module, for obtaining preset basic gain；
Acquisition module for controlling the ultrasonic wave of ultrasonic test equipment transmitting predeterminated frequency, and passes through ultrasonic test equipment
The wave amplitude that is returned of designated position of the probe acquisition on template wheel, the predeterminated frequency is the frequency being arranged based on template wheel
Rate, the template wheel are reference block made of material identical with examined Material acoustic performance and surface state；
First computing module obtains compensating gain for carrying out operation to the wave amplitude using preset algorithm；
Second computing module obtains flaw detection sensitivity for the basic gain to be added with the compensating gain；
Demarcating module, for using the flaw detection sensitivity as the sensitivity of the Railway wheelset ultrasonic test equipment.
6. caliberating device according to claim 5, which is characterized in that further include:
Second obtains module, and for obtaining the increase gain of user's input, the increase gain is for characterizing coupling error；
Third computing module obtains Scanning sensitivity for the flaw detection sensitivity to be added with the increase gain；
The demarcating module be used for using the Scanning sensitivity to the sensitivity of the Railway wheelset ultrasonic test equipment into
Row proving operation.
7. caliberating device according to claim 5 or 6, which is characterized in that further include:
Display module is stored in calibration report file for showing the result of proving operation, and by the result.
8. according to caliberating device described in claim 5 to 6 any one, which is characterized in that described to use preset algorithm pair
The wave amplitude progress operation obtains compensating gain and specifically includes:
According to formula: compensating gain=- 20 × (㏒10(wave amplitude/80)) calculate the compensating gain.
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