CN106468538A - Multi-channel electromagnetic ultrasonic thickness measurement system - Google Patents

Multi-channel electromagnetic ultrasonic thickness measurement system Download PDF

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Publication number
CN106468538A
CN106468538A CN201510517824.0A CN201510517824A CN106468538A CN 106468538 A CN106468538 A CN 106468538A CN 201510517824 A CN201510517824 A CN 201510517824A CN 106468538 A CN106468538 A CN 106468538A
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signal
electromagnetic ultrasonic
module
ultrasonic thickness
oxide
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CN201510517824.0A
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李福霞
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Abstract

Multi-channel electromagnetic ultrasonic thickness measurement system of the present invention, realizes the functions such as the high speed acquisition of channel ultrasonic echo data, computing, storage, display, has the characteristics that high-performance, low cost, small volume, low-power consumption.The present invention includes electromagnet ultrasonic changer, electromagnetic ultrasonic thickness gauge, host computer;Described electromagnetic ultrasonic thickness gauge includes signal excitation and receiver module, signal processing module, display module, and signal excitation is connected with each other with signal processing module with receiver module, and the outfan of signal processing module connects display module;The signal excitation of electromagnetic ultrasonic thickness gauge is connected the signal output part of electromagnet ultrasonic changer with the input of receiver module, and signal processing module is connected with each other with host computer;Described signal stimulating module includes pulse signal generation circuit, drive circuit, metal-oxide-semiconductor, transmitting pulse-generating circuit, pulse signal generation circuit connects drive circuit, drive circuit connects metal-oxide-semiconductor, and metal-oxide-semiconductor connects transmitting pulse-generating circuit, and the collector terminal of metal-oxide-semiconductor connects high voltage power supply.

Description

Multi-channel electromagnetic ultrasonic thickness measurement system
Technical field
The invention belongs to duct thickness field of measuring technique, more particularly to multi-channel electromagnetic ultrasonic thickness measurement system.
Background technology
Pipeline (or sheet material) thickness accurately quickly measures and is with a wide range of applications.Electromagnetic ultrasonic thickness measuring have without couplant, noncontact, high temperature resistant the features such as, obtained numerous focus of attentions.S.Dixon etc. devises a kind of electromagnetic ultrasonic thickness measuring system, can be used for aluminium sheet thickness measuring, and precision reaches 0.2%;Cao Jianhai etc. devises the electromagnetic ultrasonic thickness measuring system based on MCS-51 single-chip microcomputer, and certainty of measurement reaches 0.5%;Liu Tianhua etc. develops a set of EMAT range finding thickness measuring system, and certainty of measurement reaches 0.1mm, can be used for on-line measurement train wheel wheel rim, steel plate thickness;Duan Weiliang etc. devises the electromagnetic ultrasonic thickness measuring system based on FPGA, and resolving power is up to 0.1m.But above research is single channel thickness measuring, pipeline all standing is quickly scanned with presence limitation.
Content of the invention
The present invention is aiming at above-mentioned scanning quick to pipeline all standing and there is circumscribed problem, makes up the deficiencies in the prior art, provides multi-channel electromagnetic ultrasonic thickness measurement system;The present invention realizes the functions such as the high speed acquisition of channel ultrasonic echo data, computing, storage, display, has the characteristics that high-performance, low cost, small volume, low-power consumption.
For realizing the above-mentioned purpose of the present invention, the present invention adopts the following technical scheme that.
Multi-channel electromagnetic ultrasonic thickness measurement system of the present invention, including electromagnet ultrasonic changer, electromagnetic ultrasonic thickness gauge, host computer;Its structural feature is:Described electromagnetic ultrasonic thickness gauge includes signal excitation and receiver module, signal processing module, display module, and described signal excitation is connected with each other with signal processing module with receiver module, and the outfan of signal processing module connects display module;The signal excitation of described electromagnetic ultrasonic thickness gauge is connected the signal output part of electromagnet ultrasonic changer with the input of receiver module, and described signal processing module and host computer are connected with each other;Described signal stimulating module includes pulse signal generation circuit, drive circuit, metal-oxide-semiconductor, transmitting pulse-generating circuit, pulse signal generation circuit connects drive circuit, drive circuit connects metal-oxide-semiconductor, and metal-oxide-semiconductor connects transmitting pulse-generating circuit, and the collector terminal of described metal-oxide-semiconductor connects high voltage power supply.
As a preferred embodiment of the present invention, described signal processing module adopts ARM (STM32F407ZGT6) and FPGA (EP3C16Q240C8N) to constitute.
As another kind of preferred version of the present invention, described electromagnet ultrasonic changer adopts 4 data collecting plate card cascades to constitute, and described every data collecting plate card includes 4 passages.
The invention has the beneficial effects as follows.
1st, the present invention provides multi-channel electromagnetic ultrasonic thickness measurement system, described electromagnetic ultrasonic thickness measuring system adopts ARM to run with FPGA control system, ultrasound wave is produced using electromagnet ultrasonic changer, realizes the functions such as the high speed acquisition of channel ultrasonic echo data, computing, storage, display.The present invention has the characteristics that high-performance, low cost, small volume, low-power consumption;, using the connection realizing host computer and thickness measuring system based on the network service of udp protocol, data transmission efficiency is high, and real-time is good for described upper computer software.Software completes the function such as the process of ultrasound echo signal and the monitoring of display pipes thickness change, the thickness measuring application of suitable automatization.Communicated by network interface, facilitate the thickness measuring system of remote monitoring function to develop, there is more wide application prospect.
2nd, the present invention cascades composition technology to realize the multi-channel electromagnetic ultrasonic thickness measurement of more than 16 passages using multiple data collecting plate cards, and system structure is simple, can pass through the setting of host computer completion system parameter, ultrasonic echo show and the function such as thickness monitor;Thickness measuring high precision of the present invention, enables the rapid automatized thickness measuring of pipeline.
Brief description
Fig. 1 is the general frame figure of multi-channel electromagnetic ultrasonic thickness measurement system of the present invention.
Fig. 2 is the signal stimulating module circuit connection diagram of multi-channel electromagnetic ultrasonic thickness measurement system of the present invention.
Fig. 3 is the detailed hardware structured flowchart of multi-channel electromagnetic ultrasonic thickness measurement system of the present invention.
Fig. 4 is the program flow diagram of multi-channel electromagnetic ultrasonic thickness measurement system of the present invention.
Specific embodiment
In conjunction with shown in Fig. 1 and Fig. 2, the present invention includes electromagnet ultrasonic changer, electromagnetic ultrasonic thickness gauge, host computer;Its structural feature is:Described electromagnetic ultrasonic thickness gauge includes signal excitation and receiver module, signal processing module, display module, and described signal excitation is connected with each other with signal processing module with receiver module, and the outfan of signal processing module connects display module;The signal excitation of described electromagnetic ultrasonic thickness gauge is connected the signal output part of electromagnet ultrasonic changer with the input of receiver module, and described signal processing module and host computer are connected with each other;Described signal stimulating module includes pulse signal generation circuit, drive circuit, metal-oxide-semiconductor, transmitting pulse-generating circuit, pulse signal generation circuit connects drive circuit, drive circuit connects metal-oxide-semiconductor, and metal-oxide-semiconductor connects transmitting pulse-generating circuit, and the collector terminal of described metal-oxide-semiconductor connects high voltage power supply.
Described signal processing module adopts ARM (STM32F407ZGT6) and FPGA (EP3C16Q240C8N) to constitute.Efficient for ARM disposal ability is combined by the present invention with the feature of FPGA flexible configuration, and described ARM configures FPGA by PS mode, and signal Real-time Collection, high speed processing and the measurement result of realizing electromagnetic ultrasonic thickness gauge such as show at the function.
Described electromagnet ultrasonic changer adopts 4 data collecting plate card cascades to constitute, and described every data collecting plate card includes 4 passages.
As shown in figure 3, the detailed hardware structured flowchart for multi-channel electromagnetic ultrasonic thickness measurement system of the present invention.It is seen that hardware configuration is made up of with multi-channel electromagnetic ultrasonic transducer master board, wherein master board includes ancillary equipment, ARM, FPGA, and described ancillary equipment includes PC interface, peripheral I/O interface, LCDs;Described ARM is connected with each other with ancillary equipment, FPGA respectively, and described FPGA is communicated with host computer by network, the input of 4 data collecting plate cards of signal output part connecting multi-channel electromagnet ultrasonic changer of FPGA.
Communication software between host computer of the present invention and electromagnetic ultrasonic thickness gauge adopts Visual C++ 6.0 as developing instrument, realizes the communication with calibrator using the Socket network programming based on udp protocol., compared with TCP agreement, data transmission efficiency is higher for UDP agreement, and real-time more preferably, adapts to the demand of electromagnetic ultrasonic thickness measuring communication high speed mass data transmission;Host computer creates socket, binds local IP and port, sets server end (i.e. calibrator) IP and port, can start to communicate.Control instruction is sent to server end in the form of datagram by host computer.
Shown in Figure 4, it is the program flow diagram of multi-channel electromagnetic ultrasonic thickness measurement system of the present invention.Described host computer and calibrator are set up after connecting, can select to show each channel ultrasound echo waveform on software interface, the related parameter of THICKNESS CALCULATION and setting are adjusted according to waveform, or directly transfers the Parameter File preserving before, avoiding starting shooting every time arranges instrument channel parameter one by one;Demarcated after the completion of parameter setting, high and low thresholds are arranged to the thickness of measured piece.In detection process, the excessive scope beyond thresholding setting of measured piece thickness change is then reported to the police and labelling.The data of whole detection process preserves hereof, conveniently reads and refinement analysis later.Multichannel can carry out fusion treatment after obtaining signal and obtain more accurately thickness.
It is understandable that, above with respect to the specific descriptions of the present invention, it is merely to illustrate the present invention and is not limited to the technical scheme described by the embodiment of the present invention, it will be understood by those within the art that, still the present invention can be modified or equivalent, to reach identical technique effect;As long as meeting and using needs, all within protection scope of the present invention.

Claims (3)

1. multi-channel electromagnetic ultrasonic thickness measurement system, including electromagnet ultrasonic changer, electromagnetic ultrasonic thickness gauge, host computer;It is characterized in that:Described electromagnetic ultrasonic thickness gauge includes signal excitation and receiver module, signal processing module, display module, and described signal excitation is connected with each other with signal processing module with receiver module, and the outfan of signal processing module connects display module;The signal excitation of described electromagnetic ultrasonic thickness gauge is connected the signal output part of electromagnet ultrasonic changer with the input of receiver module, and described signal processing module and host computer are connected with each other;Described signal stimulating module includes pulse signal generation circuit, drive circuit, metal-oxide-semiconductor, transmitting pulse-generating circuit, pulse signal generation circuit connects drive circuit, drive circuit connects metal-oxide-semiconductor, and metal-oxide-semiconductor connects transmitting pulse-generating circuit, and the collector terminal of described metal-oxide-semiconductor connects high voltage power supply.
2. the multi-channel electromagnetic ultrasonic thickness measurement system according to claim 1 it is characterised in that:Described signal processing module adopts ARM (STM32F407ZGT6) and FPGA (EP3C16Q240C8N) to constitute.
3. the multi-channel electromagnetic ultrasonic thickness measurement system according to claim 1 it is characterised in that:Described electromagnet ultrasonic changer adopts 4 data collecting plate card cascades to constitute, and described every data collecting plate card includes 4 passages.
CN201510517824.0A 2015-08-23 2015-08-23 Multi-channel electromagnetic ultrasonic thickness measurement system Pending CN106468538A (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107655981A (en) * 2017-10-11 2018-02-02 哈尔滨工业大学 A kind of electromagnetic acoustic phase array transducer
CN108613732A (en) * 2018-07-10 2018-10-02 广东省计量科学研究院(华南国家计量测试中心) A kind of ultrasound imitates the acoustic velocity measurement device of material in Tissue Phantom
CN115665839A (en) * 2022-12-26 2023-01-31 北京瑞祥宏远科技有限公司 Multichannel low-power-consumption online fixed-point thickness measuring system and method
CN117589097A (en) * 2024-01-18 2024-02-23 沈阳宇时先锋检测仪器有限公司 Ultrasonic wave multiple measurement system and method

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107655981A (en) * 2017-10-11 2018-02-02 哈尔滨工业大学 A kind of electromagnetic acoustic phase array transducer
CN108613732A (en) * 2018-07-10 2018-10-02 广东省计量科学研究院(华南国家计量测试中心) A kind of ultrasound imitates the acoustic velocity measurement device of material in Tissue Phantom
CN108613732B (en) * 2018-07-10 2024-02-20 广东省计量科学研究院(华南国家计量测试中心) Sound velocity measuring device for material in ultrasonic tissue-imitating model
CN115665839A (en) * 2022-12-26 2023-01-31 北京瑞祥宏远科技有限公司 Multichannel low-power-consumption online fixed-point thickness measuring system and method
CN117589097A (en) * 2024-01-18 2024-02-23 沈阳宇时先锋检测仪器有限公司 Ultrasonic wave multiple measurement system and method
CN117589097B (en) * 2024-01-18 2024-04-05 沈阳宇时先锋检测仪器有限公司 Ultrasonic wave multiple measurement system and method

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Application publication date: 20170301