CN103728369A - Multifunctional omnibearing stretchable eddy-current probe vehicle device based on metal water pipe - Google Patents
Multifunctional omnibearing stretchable eddy-current probe vehicle device based on metal water pipe Download PDFInfo
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Abstract
The invention relates to a multifunctional omnibearing stretchable eddy-current probe vehicle device based on a metal water pipe. The device comprises an excitation coil device, an excitation signal generating device, a detection coil device, a wireless remote control device, a data processing device and a three-dimensional acceleration sensor. The device has the beneficial effects that excitation coils in the excitation coil device and detection coils in the detection coil device can be adjusted respectively according to parameters of a pipeline, a detection coil rotating support in the detection coil device can be adjusted in a stretchable manner and can be rotated for 360 DEG, the omnibearing data of a pipeline to be detected can be obtained, the error in data analysis can be reduced, and the multifunctional omnibearing stretchable eddy-current probe vehicle device is applicable to the test of different fields; meanwhile, when an abnormal signal is discovered in the pipeline to be detected, the repeated measurement in multiple times can be carried out through the advancing and withdrawing of an eddy-current probe vehicle, so that the misjudgment can be well avoided.
Description
Technical field
The invention belongs to the technical field of nondestructive testing of eddy current, specifically, relate to a kind of all-direction multi-functional based on metallic water pipe eddy current probe vehicles device that can stretch.
Background technology
Water resource is very important for us, urban water supply pipeline transportation is a focal issue always, pipe leakage is not only waste water resource, more can be with serving potential harm, such as corrosive pipeline, cause ground roadbed to damage, leaking serious place more can corrosive ground, causes ground to sink etc.Up to the present, the detection method of pipeline breaking adopts relevant function method, pressure adjustment method and workmen's experience method etc. mostly.But in the detection method of these active services, respectively have its advantages and disadvantages, such as workmen's micro-judgment fado is according to beaing the metallic water pipe listening on pipeline of lying prone again, such method limitation is larger, and is easily subject to noise; Relevant function method cost is high, and investment is large, and relevant with many other factors; And pressure adjustment method can only reduce water leakage within a period of time, cure the symptoms, not the disease, can not accurately locate and repair leakage point, base is like this, and eddy detection technology arises at the historic moment.
Eddy detection technology is take the law of electromagnetic induction as basis, by the electromagnetic performance that detects metallic conduit to be measured, changes, and understands a kind of technology of its defect situation or metallic character.Say in principle, all factors relevant with electromagnetic induction can be served as the detected object of detection method of eddy.The features such as eddy current detection method is quick because having, non-cpntact measurement make it be widely used in the industrial circles such as electric power, machinery, aviation, chemical industry, atomic energy.
Present eddy detection technology, its pick-up unit, in certain technical limitation that exists, needs large breakthrough, for example:
1, the new-type probe of high-performance of the applicable various application scenarios of development is still one of current study hotspot.
2, eddy detection technology is the inevitable requirement that product quality improves constantly to the triple assessment of defect size and shape, and therefore EDDY CURRENT three-dimensional imaging is a great technological breakthrough field.
3, data acquisition and processing (DAP), obtains the most effectively, the most comprehensively and the data of all directions, and improving signal to noise ratio (S/N ratio) is the vital task of signal processing, and performance and defect that multiparameter is carried out evaluating material are the trend of current demand signal processing.
Above 3 outstanding problems are all that existing eddy current testing device can not have, or the function that only part has, and have certain limitation, therefore, develop a kind of eddy current testing device multi-functional, comprehensive and robotization and are extremely necessary.
Summary of the invention
Fundamental purpose of the present invention is, for above-mentioned deficiency of the prior art, a kind of all-direction multi-functional based on metallic water pipe eddy current probe vehicles device that can stretch is provided, it can realize the measurement that the structure of popping one's head in by adjustment adapts to various different pipelines, multi-angle, comprehensive in pipe under test, abnormal signal position is measured in the repeatedly circulation that intersects, and degree of accuracy improves greatly.
For achieving the above object, the present invention solves the technical scheme that prior art problem adopts and is: a kind of all-direction multi-functional based on metallic water pipe eddy current probe vehicles device that can stretch, and it comprises:
Drive coil device, described drive coil device comprises drive coil support frame and is arranged at the drive coil on described drive coil support frame;
Pumping signal generating means, described pumping signal generating means produces pumping signal, acts on described drive coil, produces corresponding pumping signal in pipe under test;
Magnetic test coil device, described magnetic test coil device comprises magnetic test coil swinging mounting and is installed on the magnetic test coil on magnetic test coil swinging mounting top, described magnetic test coil is used for receiving in far-field region the pumping signal that described drive coil produces in pipe under test, and the pumping signal of reflection pipe under test design parameter is converted to electric signal;
Data processing equipment, described data processing equipment gathers by the electric signal that described magnetic test coil is exported, and by low noise amplification, filtering and phase differential Treatment Analysis, obtains reflecting many groups of comprehensive data of pipe under test;
Three dimension acceleration sensor, described three dimension acceleration sensor be installed on one for control detect time pipe under test advance with the eddy current probe vehicles retreating in, be connected with described data processing equipment signal, many groups of comprehensive data of the reflection pipe under test that described data processing equipment is obtained are carried out data analysis location, complete the detection to pipe under test.
Below above scheme is further elaborated:
As the motor that preferably, also comprises that a rotation axis and the described rotation axis of a control rotate, described drive coil support frame and described magnetic test coil swinging mounting are individually fixed on described rotation axis, and described rotation axis is connected with the output shaft of described motor.
As preferably, further comprising a wireless remote controller, described wireless remote controller is for the rotation of motor described in wireless far distance controlled.
As preferred, described magnetic test coil swinging mounting, for comprising multiple expansion links, multiple described expansion links are equidistantly connected in described rotation axis.
The CPLD chip, waveform ROM, D/A converter, low-pass filter, power amplifier and the power circuit for single-chip microcomputer power supply that as preferred, described pumping signal generating means, comprise single-chip microcomputer, be electrically connected with single-chip microcomputer;
Wherein, described single-chip microcomputer is according to parameter generating Waveform Control word, frequency control words such as touch-screen incoming frequency, amplitude and dutycycles, and produced Waveform Control word, frequency control word are delivered to CPLD chip, on touch-screen, show in real time waveform correlation parameter, the discretize Wave data of the signal to be generated of meanwhile, by serial ports, upper PC machine being sent here is written in waveform ROM in real time; Described CPLD chip is realized the function of phase accumulator in DDS, at cumulative frequency control word of each clock period of reference clock, and the address code of generation is delivered to waveform ROM and carry out addressing; And described CPLD chip is also realized address latch function, to guarantee realizing single-chip microcomputer address wire and data line time-sharing multiplex when single-chip microcomputer upgrades memory data; Described D/A converter is used for converting digital signal to simulating signal, and carries out smothing filtering by low-pass filter, finally by power amplification circuit, pumping signal is loaded in described drive coil.
The A/D modular converter, digital display module, the transmitter module that as preferred, described wireless remote controller, comprise governor circuit and be electrically connected with governor circuit; Wherein, described A/D modular converter samples and changes for speed and direction that described probe vehicles device is advanced.
The DSP module, dual port RAM, wireless acquisition module, wireless receiving module, single chip processing module and the upper PC that as preferred, described data processing equipment, comprise one-chip computer module and be electrically connected with one-chip computer module;
Wherein, described DSP module has been responsible for the conditioning of exciter response signal, gather, digital filtering, the realization of the data processing algorithms such as temperature compensation, between described DSP module and one-chip computer module, adopt dual port RAM to realize data sharing and high-speed communication, one-chip computer module is exclusively used in the management of keyboard/LCD man-machine interface and data communication interface, the data that one-chip computer module is sent DSP module here show in real time, by wireless acquisition module and upper PC machine, communicate by letter to realize off-line analysis and the management of data, wireless acquisition module is responsible for collection and the wireless transmission to data, again via coding chip wireless transmission data, wireless receiving module is mainly comprised of decoding chip and peripheral circuit, mainly decode the data of wireless transmission, by one-chip computer module, read in and store and transmit, single chip processing module is mainly comprised of single-chip microcomputer and peripheral circuit, the processing of main complete paired data, address code control to wireless receiving module and with the communicating by letter of upper PC machine, the software systems that upper PC machine operation LabVIEW8.2 writes, carry out the selection of collection point and the setting of acquisition mode, then by the parameter setting, by EPP Parallel Interface Communication, give single chip processing module, and then the address code on wireless receiving module is set, the data that make it receive the data of corresponding collection point and gather corresponding number of times, single chip processing module sends by EPP Parallel Interface Communication the data that collect to upper PC machine, thereby realizing upper PC shows the data that collect, the functions such as storage and real-time analysis.
The acceleration transducer, acceleration signal acquisition process circuit, the Wireless Sensor Network Terminal node that as preferred, described three dimension acceleration sensor, comprise AVR single-chip microcomputer and be electrically connected with described AVR single-chip microcomputer;
Wherein, the signal of described acceleration transducer output is input to a low-pass filter circuit by a signal follow circuit, described low-pass filter circuit is removed the part random disturbance in described signal, filtered signal is delivered to AVR single-chip microcomputer, AVR single-chip microcomputer collection signal also resolves, data after resolving are sent to WSN aggregation node wirelessly by WSN terminal node again, aggregation node is connected with computing machine by Serial Port Line, finally carry out on computers host computer demonstration, simultaneously because aggregation node is integrated with Wi-FI module, so obtain system locating information by Wi-Fi module is set on the computing machine of assigned ip address, wherein, on Wireless Sensor Network Terminal node, be integrated with acceleration transducer MMA7260, AVR single-chip microcomputer and filtering circuit.
The invention has the beneficial effects as follows:
One, a kind of all-direction multi-functional based on metallic water pipe of the present invention can stretch magnetic test coil swinging mounting that eddy current probe vehicles device is provided with for comprising multiple expansion links, multiple described expansion links are equidistantly connected in described rotation axis, make when application in real time, by stretching of expansion link, the cantilever tip of magnetic test coil swinging mounting can be adjacent to the inner-walls of duct of different-diameter size, and pass through the rotation of driven by motor magnetic test coil at inner-walls of duct, realize the multi-faceted rotation of magnetic test coil, multi-angle is obtained the different data of tube wall and is contrasted.
Two, multiple magnetic test coils can receive the eddy current signal of reacting pipe inside and outside wall defect situation in far-field region, data processing equipment carries out data analysis for the electric signal of magnetic test coil output and the pumping signal of drive coil by the labview programing system in upper PC, obtain reacting metal water pipe and organize different pieces of information more, ask phase differential and amplitude to carry out confluence analysis, and by the positional information of three dimension acceleration sensor and the phase analysis figure imaging of labview, find out intuitively the situation of pipe under test.
Three, the distance of drive coil and magnetic test coil is free to regulate, and coil turn is free to increase and decrease and changes, make inspection vehicle can adapt to a certain extent the test of various application scenarios, and magnetic test coil can 360 ° of rotations under the effect of motor, obtain the data for the treatment of that test tube is multi-faceted, reduced the error of data analysis, remote-controlled inspection vehicle can be advanced and be retreated to carry out repeatedly duplicate measurements by controlled vortex flow probe vehicles when finding an abnormal signal, has well avoided erroneous judgement.
Accompanying drawing explanation
Fig. 1 is can the stretch principle of work block scheme of eddy current probe vehicles device of a kind of all-direction multi-functional based on metallic water pipe of the present invention;
Fig. 2 is the structural representation of magnetic test coil device described in the present invention;
Fig. 3 is the structural representation of described rotation axis;
Fig. 4 is can the stretch one-piece construction schematic diagram of eddy current probe vehicles device of a kind of all-direction multi-functional based on metallic water pipe of the present invention.
Realization, functional characteristics and the advantage of the object of the invention, in connection with embodiment, are described further with reference to accompanying drawing.
Embodiment
Below with reference to drawings and the specific embodiments, describe technical scheme of the present invention in detail, so as clearer, understand invention essence of the present invention intuitively.
Shown in Fig. 1, Fig. 2, Fig. 3 and Fig. 4, a kind of all-direction multi-functional based on metallic water pipe eddy current probe vehicles device that can stretch, it comprises:
Pumping signal generating means 40, described pumping signal generating means 40 produces pumping signal, acts on described drive coil, produces corresponding pumping signal in pipe under test;
Magnetic test coil device 60, described magnetic test coil device 60 comprises magnetic test coil swinging mounting 601 and is installed on the magnetic test coil 602 on magnetic test coil swinging mounting 601 tops, described magnetic test coil 602 is for receive the pumping signal that described drive coil produces in pipe under test in far-field region, and the pumping signal of reflection pipe under test design parameter is converted to electric signal;
Data processing equipment 100, described data processing equipment 100 gathers by the electric signal that described magnetic test coil 602 is exported, and by low noise amplification, filtering and phase differential Treatment Analysis, obtains reflecting many groups of comprehensive data of pipe under test;
Three dimension acceleration sensor 120, described three dimension acceleration sensor 120 be installed on for control detect time pipe under test advance with the eddy current probe vehicles 140 retreating in, be connected with described data processing equipment 100 signals, many groups of comprehensive data of the reflection pipe under test that described data processing equipment 100 is obtained are carried out data analysis location, complete the detection to pipe under test.
Simultaneously, in the present invention, as preferably, also comprising a rotation axis 55 and, control the motor that described rotation axis rotates, described drive coil support frame 201 and described magnetic test coil swinging mounting 601 are individually fixed on described rotation axis 55, and described rotation axis 55 is connected with the output shaft of described motor.
As preferably, further comprise a wireless remote controller 80, described wireless remote controller 80 is for the rotation of motor described in wireless far distance controlled, and described magnetic test coil swinging mounting 601 is for comprising multiple expansion links, and multiple described expansion links are equidistantly connected on described rotation axis 55, corresponding, described magnetic test coil 602 is made as multiple, is individually fixed in the top of expansion link, and in the present invention, described expansion link is made as eight, and what magnetic test coil 602 was corresponding is provided with eight.
It should be noted that, for making drive coil, magnetic test coil 602, pumping signal generating means 40, data processing equipment 100 not be subject to external interference, when concrete application, also comprise drive coil protection sleeve, described drive coil protection sleeve be provided with one can free switch gland bonnet, described drive coil (not shown) is placed in and in described drive coil protection sleeve, realizes sealing; Make detect time as required, open gland bonnet, realize the replacing of different size drive coil; Magnetic test coil protection sleeve, the top of described magnetic test coil swinging mounting 601 is provided with magnetic test coil protection sleeve, and multiple described magnetic test coils 602 are placed in respectively the protection and the sealing that in described magnetic test coil protection sleeve, realize self; In like manner, open magnetic test coil protection sleeve, can realize the replacing of different size magnetic test coil 602, adjust the number of turn of magnetic test coil 602, meet the needs while detecting; Pumping signal generating means protective sleeve is not subject to the interference of the materials such as water body in pipeline for the protection of pumping signal generating means 40; Data processing equipment protective sleeve, the destruction that is not subject to the materials such as water in order to protected data treating apparatus 100.
Further, described pumping signal generating means 40 comprises single-chip microcomputer, is electrically connected with single-chip microcomputer CPLD chip, D/A converter, waveform ROM, low-pass filter, power amplifier and the power circuit for single-chip microcomputer power supply; Wherein, described single-chip microcomputer is selected the W77E058 of Winbond company; Described CPLD chip is selected the EPM7128SLC84-15 of Altera company; Described D/A converter has been selected the MAX507 of Maxim company, and it is the DA chip of 12 voltage-type outputs; That described waveform ROM selects is 8 bit memory AT28C64B of Atmel company, and it selects two least-significant bytes that carry out respectively stored waveform data and high 4; Described single-chip microcomputer is according to parameter generating Waveform Control word, frequency control words such as touch-screen incoming frequency, amplitude and dutycycles and produced Waveform Control word, frequency control word are delivered to CPLD chip, on touch-screen, show in real time waveform correlation parameter, the discretize Wave data of the signal to be generated of meanwhile, by serial ports, upper PC machine being sent here is written in waveform ROM in real time; Described CPLD chip is realized the function of phase accumulator in DDS, at cumulative frequency control word of each clock period of reference clock, and the address code of generation is delivered to waveform ROM and carry out addressing; And described CPLD chip is also realized address latch function, to guarantee realizing single-chip microcomputer address wire and data line time-sharing multiplex when single-chip microcomputer upgrades memory data; Described D/A converter is used for converting digital signal to simulating signal, and carries out smothing filtering by low-pass filter, finally by power amplification circuit, pumping signal is loaded in described drive coil;
And A/D modular converter, digital display module, transmitter module that described wireless remote controller 80 comprises governor circuit and is electrically connected with governor circuit; Wherein, described A/D conversion portion is because Yao Dui bis-tunnels (speed and direction) samples and change, therefore we adopt ADC0809 chip, the fundamental purpose of accepting control end is to accept speed and the directional data that transmitting terminal is sent here, and realizes direction and speed control to direct current generator.
Further, described data processing equipment 100 comprise one-chip computer module and the DSP module that is electrically connected with one-chip computer module, dual port RAM and, wireless acquisition module, wireless receiving module, single chip processing module and upper PC;
Wherein, described DSP module has been responsible for the realization of the data processing algorithms such as the conditioning, collection, digital filtering, temperature compensation of exciter response signal, between described DSP module and one-chip computer module, adopt dual port RAM to realize data sharing and high-speed communication, one-chip computer module is exclusively used in the management of keyboard/LCD man-machine interface and data communication interface, the data that one-chip computer module is sent DSP module here show in real time, by wireless acquisition module and upper PC machine, communicate by letter to realize off-line analysis and the management of data, complete the detection to pipe under test, wireless acquisition module is responsible for collection and the wireless transmission to data, by a single chip computer AT 89C52, control A/D converter and convert simulating signal to digital signal, again via coding chip PT2262 wireless transmission data, and parallel wireless transmission six bit data at every turn, wireless receiving module is mainly comprised of decoding chip PT 2272 and peripheral circuit, mainly decode the data of wireless transmission, by single chip computer AT 89C52, read in and store and transmit, single chip processing module is mainly comprised of a single chip computer AT 89C52 and peripheral circuit, the processing of main complete paired data, address code control to receiver module and with the communicating by letter of upper PC machine, the software systems that upper PC machine operation LabVIEW8.2 writes, carry out the selection of collection point and the setting of acquisition mode, then by the parameter setting, by EPP Parallel Interface Communication, give single chip processing module, and then the address code on wireless receiving module is set, the data that make it receive the data of corresponding collection point and gather corresponding number of times, single chip processing module sends by EPP Parallel Interface Communication the data that collect to upper PC machine, thereby realizing upper PC shows the data that collect, the functions such as storage and real-time analysis.
Meanwhile, described three dimension acceleration sensor 120 comprise AVR single-chip microcomputer and the acceleration transducer that is electrically connected with AVR single-chip microcomputer,, acceleration signal acquisition process circuit, Wireless Sensor Network Terminal node;
Wherein, the signal of described acceleration transducer output is input to a low-pass filter circuit by signal follow circuit, described low-pass filter circuit is removed the part random disturbance in described signal, filtered signal is delivered to AVR single-chip microcomputer, AVR single-chip microcomputer collection signal also resolves, data after resolving are sent to WSN aggregation node wirelessly by WSN terminal node again, aggregation node is connected with computing machine by Serial Port Line, finally carry out on computers host computer demonstration, simultaneously because aggregation node is integrated with Wi-FI module, so obtain system locating information by Wi-Fi module is set on the computing machine of assigned ip address, wherein, on Wireless Sensor Network Terminal node, be integrated with acceleration transducer MMA7260, AVR single-chip microcomputer and filtering circuit.
In sum, a kind of all-direction multi-functional based on metallic water pipe of the present invention eddy current probe vehicles that can stretch
Device is when concrete practice, relevant according to the diameter of pipe under test, wall thickness, magnetic permeability, conductivity etc.
Parameter, obtain the parameter of corresponding drive coil and magnetic test coil 602, in supporting tool box, the coil of selecting approaching or corresponding requirements is arranged on respectively each expansion link top of drive coil support frame 201 and magnetic test coil swinging mounting 601, and seal cap sealing is good, follow according to the radius of the diameter adjustment magnetic test coil swinging mounting 601 of metallic conduit to be measured to reach the requirement that is adjacent to tube wall, and the distance that regulates drive coil and multiple magnetic test coil 602 makes measurement effect reach best, meanwhile, regulate the height of the upright pole 141 in eddy current probe vehicles 140, make the in the same size of itself and magnetic test coil 602 radiuses, such eddy current probe vehicles of measuring pipe under test is adjusted, the effectively testing requirement that adapts to various different pipelines.
Touch-screen in pumping signal generating means 40 is inputted corresponding eddy current signal, and can be whether consistent by the signal of oscillograph or the output of other instrument testings, if unanimously, show to regulate successfully, then open the switch that drives eddy current probe vehicles 140, whether normally on ground, carry out simple forward-reverse control now, see eddy current probe vehicles 140 operation, can magnetic test coil swinging mounting 601 rotate, if all are normal, the preparatory stage of eddy current probe vehicles 140 is ready.
Eddy current probe vehicles 140 is put into pipe under test, the switch of Acceleration of starting degree sensor and wireless module, in host computer, open the software labview of Treatment Analysis, observe and whether can normally move, whether oscillogram is normal, whether acceleration transducer transfers back to the positional information of computer and coincide with current location, just can handle eddy current probe vehicles 140 and move in metallic conduit to be measured after everything in readiness.
Eddy current probe vehicles 140 should at the uniform velocity be advanced in principle, also can non-ly at the uniform velocity measure, depending on actual conditions, when eddy current probe vehicles 140 is moved in metallic conduit to be measured, by the variation of observing waveform, control in real time, if waveform is normal, without rotating magnetic test coil swinging mounting 601, now, the signal that multiple magnetic test coils 602 receive, substantially be the full spectrum information of pipe under test, under normal circumstances without the rotation of controlling magnetic test coil 602 by wireless remote controller 80, and when for fear of erroneous judgement, by rotating magnetic test coil swinging mounting 601, be analyzed again, if there is abnormal signal, by rotating magnetic test coil 602, repeated measurement is carried out in the position of abnormal signal, comparative analysis, in order to contrast with the position of breach front and back, can also move forward and backward controlled vortex flow probe vehicles 140 front and back in breach position, draw the relevant information of reacting pipe crackle.
After writing in reply number by data processing equipment 100 collection through the respective handling of data processing module signal by being wirelessly transmitted in upper PC, in the labview of upper PC programing system, can find out intuitively the imaging of eddy current signal, in conjunction with the displacement signal of abnormal signal and acceleration transducer, complete the testing to pipe under test, concrete principle of work block scheme as shown in Figure 1.
By this, a kind of all-direction multi-functional based on metallic water pipe of the present invention eddy current probe vehicles device that can stretch, the magnetic test coil swinging mounting 601 of the retractable being provided with, make when application in real time, the cantilever tip of magnetic test coil swinging mounting 601 can be adjacent to the inner-walls of duct of different-diameter size, and at inner-walls of duct, by miniature small machine, drives the rotation of detection probe 70, and realizing magnetic test coil 602 can rotate freely, multi-faceted, multi-angle is obtained the different data of tube wall and is contrasted.And multiple magnetic test coils 602 can receive the eddy current signal of reacting pipe inside and outside wall defect situation in far-field region, the pumping signal that the electric signal that data processing equipment is exported for magnetic test coil 602 and drive coil (not shown) produce is carried out data analysis by labview programing system, obtain reacting metal water pipe and organize different pieces of information more, ask phase differential and amplitude to carry out confluence analysis, and by the positional information of three dimension acceleration sensor 120 and the phase analysis figure imaging of labview, find out intuitively the situation of pipe under test.
Simultaneously, the distance of drive coil (not shown) and magnetic test coil 602 is free to regulate, and coil turn is free to increase and decrease and changes, make eddy current probe vehicles 140 can adapt to a certain extent the test of various application scenarios, and magnetic test coil 602 can 360 ° of rotations under the effect of miniature small machine, obtain the data for the treatment of that test tube is multi-faceted, reduced the error of data analysis, eddy current probe vehicles 140 can, by advancing and retreating to carry out repeatedly duplicate measurements when finding an abnormal signal, well be avoided erroneous judgement.Thereby a kind of all-direction multi-functional based on metallic water pipe of the present invention eddy current probe vehicles device that can stretch, with respect to traditional eddy current detecting equipment, can adapt to various occasions, data acquisition and processing (DAP), obtains the most effectively, the most comprehensively feeds back, and can obtain effectively universal and widespread use.
The foregoing is only the preferred embodiments of the present invention; not thereby limit its scope of the claims; every equivalent structure or conversion of equivalent flow process that utilizes instructions of the present invention and accompanying drawing content to do; directly or indirectly be used in other relevant technical fields, be all in like manner included in scope of patent protection of the present invention.
Claims (8)
1. the eddy current probe vehicles device that can stretch of the all-direction multi-functional based on metallic water pipe, is characterized in that, it comprises:
Drive coil device, described drive coil device comprises drive coil support frame and is arranged at the drive coil on described drive coil support frame;
Pumping signal generating means, described pumping signal generating means produces pumping signal, acts on described drive coil, produces corresponding pumping signal in pipe under test;
Magnetic test coil device, described magnetic test coil device comprises magnetic test coil swinging mounting and is installed on the magnetic test coil on magnetic test coil swinging mounting top, described magnetic test coil is used for receiving in far-field region the pumping signal that described drive coil produces in pipe under test, and the pumping signal of reflection pipe under test design parameter is converted to electric signal;
Data processing equipment, described data processing equipment gathers by the electric signal that described magnetic test coil is exported, and by low noise amplification, filtering and phase differential Treatment Analysis, obtains reflecting many groups of comprehensive data of pipe under test;
Three dimension acceleration sensor, described three dimension acceleration sensor be installed on one for control detect time pipe under test advance with the eddy current probe vehicles retreating in, be connected with described data processing equipment signal, many groups of comprehensive data of the reflection pipe under test that described data processing equipment is obtained are carried out data analysis location, complete the detection to pipe under test.
2. the all-direction multi-functional based on the metallic water pipe according to claim 1 eddy current probe vehicles device that can stretch, it is characterized in that, also comprise the motor that a rotation axis and the described rotation axis of a control rotate, described drive coil support frame and described magnetic test coil swinging mounting are individually fixed on described rotation axis, and described rotation axis is connected with the output shaft of described motor.
3. the all-direction multi-functional based on the metallic water pipe according to claim 2 eddy current probe vehicles device that can stretch, is characterized in that, further comprises a wireless remote controller, and described wireless remote controller is for the rotation of motor described in wireless far distance controlled.
4. the all-direction multi-functional based on the metallic water pipe according to claim 2 eddy current probe vehicles device that can stretch, is characterized in that, described magnetic test coil swinging mounting is for comprising multiple expansion links, and multiple described expansion links are equidistantly connected in described rotation axis.
5. the all-direction multi-functional based on the metallic water pipe according to claim 1 eddy current probe vehicles device that can stretch, it is characterized in that CPLD chip, waveform ROM, D/A converter, low-pass filter, power amplifier and the power circuit for single-chip microcomputer power supply that described pumping signal generating means comprises single-chip microcomputer, is electrically connected with single-chip microcomputer;
Wherein, described single-chip microcomputer is according to parameter generating Waveform Control word, frequency control words such as touch-screen incoming frequency, amplitude and dutycycles, and produced Waveform Control word, frequency control word are delivered to CPLD chip, on touch-screen, show in real time waveform correlation parameter, the discretize Wave data of the signal to be generated of meanwhile, by serial ports, upper PC machine being sent here is written in waveform ROM in real time; Described CPLD chip is realized the function of phase accumulator in DDS, at cumulative frequency control word of each clock period of reference clock, and the address code of generation is delivered to waveform ROM and carry out addressing; And described CPLD chip is also realized address latch function, to guarantee realizing single-chip microcomputer address wire and data line time-sharing multiplex when single-chip microcomputer upgrades memory data; Described D/A converter is used for converting digital signal to simulating signal, and carries out smothing filtering by low-pass filter, finally by power amplification circuit, pumping signal is loaded in described drive coil.
6. the all-direction multi-functional based on the metallic water pipe according to claim 3 eddy current probe vehicles device that can stretch, it is characterized in that A/D modular converter, digital display module, transmitter module that described wireless remote controller comprises governor circuit and is electrically connected with governor circuit; Wherein, described A/D modular converter samples and changes for speed and direction that described probe vehicles device is advanced.
7. the all-direction multi-functional based on the metallic water pipe according to claim 1 eddy current probe vehicles device that can stretch, it is characterized in that DSP module, dual port RAM, wireless acquisition module, wireless receiving module, single chip processing module and upper PC that described data processing equipment comprises one-chip computer module and is electrically connected with one-chip computer module;
Wherein, described DSP module has been responsible for the conditioning of exciter response signal, gather, digital filtering, the realization of the data processing algorithms such as temperature compensation, between described DSP module and one-chip computer module, adopt dual port RAM to realize data sharing and high-speed communication, one-chip computer module is exclusively used in the management of keyboard/LCD man-machine interface and data communication interface, the data that one-chip computer module is sent DSP module here show in real time, by wireless acquisition module and upper PC machine, communicate by letter to realize off-line analysis and the management of data, wireless acquisition module is responsible for collection and the wireless transmission to data, again via coding chip wireless transmission data, wireless receiving module is mainly comprised of decoding chip and peripheral circuit, mainly decode the data of wireless transmission, by one-chip computer module, read in and store and transmit, single chip processing module is mainly comprised of single-chip microcomputer and peripheral circuit, the processing of main complete paired data, address code control to wireless receiving module and with the communicating by letter of upper PC machine, the software systems that upper PC machine operation LabVIEW8.2 writes, carry out the selection of collection point and the setting of acquisition mode, then by the parameter setting, by EPP Parallel Interface Communication, give single chip processing module, and then the address code on wireless receiving module is set, the data that make it receive the data of corresponding collection point and gather corresponding number of times, single chip processing module sends by EPP Parallel Interface Communication the data that collect to upper PC machine, thereby realizing upper PC shows the data that collect, the functions such as storage and real-time analysis.
8. the all-direction multi-functional based on the metallic water pipe according to claim 1 eddy current probe vehicles device that can stretch, it is characterized in that acceleration transducer, acceleration signal acquisition process circuit, Wireless Sensor Network Terminal node that described three dimension acceleration sensor comprises AVR single-chip microcomputer and is electrically connected with described AVR single-chip microcomputer;
Wherein, the signal of described acceleration transducer output is input to a low-pass filter circuit by a signal follow circuit, described low-pass filter circuit is removed the part random disturbance in described signal, filtered signal is delivered to AVR single-chip microcomputer, AVR single-chip microcomputer collection signal also resolves, data after resolving are sent to WSN aggregation node wirelessly by WSN terminal node again, aggregation node is connected with computing machine by Serial Port Line, finally carry out on computers host computer demonstration, simultaneously because aggregation node is integrated with Wi-FI module, so obtain system locating information by Wi-Fi module is set on the computing machine of assigned ip address, wherein, on Wireless Sensor Network Terminal node, be integrated with acceleration transducer MMA7260, AVR single-chip microcomputer and filtering circuit.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310753437.8A CN103728369B (en) | 2013-12-31 | 2013-12-31 | A kind of all-direction multi-functional based on metallic water pipe can stretch eddy current probe vehicles device |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106153713A (en) * | 2016-06-28 | 2016-11-23 | 中国计量大学 | A kind of metallic conduit defect in inner surface detection device |
| CN108398438A (en) * | 2018-05-11 | 2018-08-14 | 中国水利水电科学研究院 | A kind of defects detection vehicle and defect inspection method |
| CN111912900A (en) * | 2020-03-18 | 2020-11-10 | 南京理工大学 | Intelligent detection device based on low-frequency eddy current |
| CN113504294A (en) * | 2021-06-15 | 2021-10-15 | 浙江工业大学 | Steel bar non-uniform corrosion measuring device based on magnetic induction |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020190682A1 (en) * | 2001-03-07 | 2002-12-19 | Hagen Schempf | Gas main robotic inspection system |
| JP2010164416A (en) * | 2009-01-15 | 2010-07-29 | Yokohama National Univ | Corrosion meter and corrosion measuring system |
| CN102422155A (en) * | 2009-05-14 | 2012-04-18 | 西屋电气有限责任公司 | Tetherless tube inspection system |
| CN102425708A (en) * | 2011-10-01 | 2012-04-25 | 洛阳理工学院 | Nondestructive flaw detection pipeline robot |
| CN102737493A (en) * | 2012-07-12 | 2012-10-17 | 北京时代之峰科技有限公司 | System and method for wireless measurement of detection instrument |
| CN203101329U (en) * | 2013-03-19 | 2013-07-31 | 浙江大学城市学院 | Device for detecting oxides inside stainless steel tube by single sensor |
| CN204086208U (en) * | 2013-12-31 | 2015-01-07 | 湛江师范学院 | A kind of all-direction multi-functional based on metallic water pipe can stretch eddy current probe vehicles device |
-
2013
- 2013-12-31 CN CN201310753437.8A patent/CN103728369B/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020190682A1 (en) * | 2001-03-07 | 2002-12-19 | Hagen Schempf | Gas main robotic inspection system |
| JP2010164416A (en) * | 2009-01-15 | 2010-07-29 | Yokohama National Univ | Corrosion meter and corrosion measuring system |
| CN102422155A (en) * | 2009-05-14 | 2012-04-18 | 西屋电气有限责任公司 | Tetherless tube inspection system |
| CN102425708A (en) * | 2011-10-01 | 2012-04-25 | 洛阳理工学院 | Nondestructive flaw detection pipeline robot |
| CN102737493A (en) * | 2012-07-12 | 2012-10-17 | 北京时代之峰科技有限公司 | System and method for wireless measurement of detection instrument |
| CN203101329U (en) * | 2013-03-19 | 2013-07-31 | 浙江大学城市学院 | Device for detecting oxides inside stainless steel tube by single sensor |
| CN204086208U (en) * | 2013-12-31 | 2015-01-07 | 湛江师范学院 | A kind of all-direction multi-functional based on metallic water pipe can stretch eddy current probe vehicles device |
Non-Patent Citations (2)
| Title |
|---|
| 徐琛 等: "基于低频涡流的油气管道变形检测方法及实现", 《电测与仪表》 * |
| 梁唯溪 等: "高压输电线涡流检测机器人的研制", 《无损检测》 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106153713A (en) * | 2016-06-28 | 2016-11-23 | 中国计量大学 | A kind of metallic conduit defect in inner surface detection device |
| CN108398438A (en) * | 2018-05-11 | 2018-08-14 | 中国水利水电科学研究院 | A kind of defects detection vehicle and defect inspection method |
| CN111912900A (en) * | 2020-03-18 | 2020-11-10 | 南京理工大学 | Intelligent detection device based on low-frequency eddy current |
| CN113504294A (en) * | 2021-06-15 | 2021-10-15 | 浙江工业大学 | Steel bar non-uniform corrosion measuring device based on magnetic induction |
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