CN106645410A - Electronic detection device - Google Patents
Electronic detection device Download PDFInfo
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- CN106645410A CN106645410A CN201611262860.8A CN201611262860A CN106645410A CN 106645410 A CN106645410 A CN 106645410A CN 201611262860 A CN201611262860 A CN 201611262860A CN 106645410 A CN106645410 A CN 106645410A
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- resistance
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- ultrasonic wave
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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
- G01N29/04—Analysing solids
- G01N29/041—Analysing solids on the surface of the material, e.g. using Lamb, Rayleigh or shear waves
-
- 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
- G01N29/44—Processing the detected response signal, e.g. electronic circuits specially adapted therefor
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2291/00—Indexing codes associated with group G01N29/00
- G01N2291/02—Indexing codes associated with the analysed material
- G01N2291/023—Solids
- G01N2291/0234—Metals, e.g. steel
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- Analytical Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Signal Processing (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
Abstract
The invention discloses an electronic detection device, which comprises an FPGA chip, a display module, an interface module, a storage module, a key module, an alarm module, a probe, a filter and an ultrasonic generation circuit, wherein the FPGA chip is connected with the display module, the interface module, the storage module, the key module, the alarm module, the ultrasonic generation circuit, an A/D conversion module and a microprocessor separately; the ultrasonic generation circuit is also connected with the probe; the probe is also connected with a to-be-detected workpiece and an ultrasonic receiving circuit separately; and the ultrasonic receiving circuit is also connected to the A/D conversion module through an amplifier circuit, a clamping circuit and the filter in sequence. By adopting a structural and modular design, the electronic detection device is diverse in function, real-time collection and transmission of data can be achieved, and meanwhile, a very faint ultrasonic signal can be absorbed, so that the detection precision is improved.
Description
Technical field
The present invention relates to a kind of detection means, specifically a kind of electronic detecting device.
Background technology
Nondestructive testing technique is the surface on the premise of not defective work piece or raw material working condition, to being examined part
A kind of means of testing checked with internal soundness, ultrasonic examination is exactly the depths that metal material can be penetrated using ultrasound,
And when entering another section by a section, a kind of method of part defect is checked the characteristics of interface edge reflects.When
Ultrasonic beam passes to metal inside from piece surface by probe, runs into defect and back wave just occurs respectively during part bottom surface,
Impulse waveform is formed on fluorescent screen, defective locations and size are judged according to these impulse waveforms.With ultrasonic examination skill
The development of art, process and the analysis to data signal has no longer been only ancillary technique, but a kind of basic fundamental, thus occur
The ultrasonic detecting equipments of various total digitalizations.But the digitizer of early stage only rests on ultrasound examination frequency compared with low frequency
On the signal transacting of section, mainly limited by high-speed a/d and high speed storing technology, due to computer bus technology application
Bottleneck, can not real time multi-channel transmit Wave data and go to process to computer, auditory localization signal analysis etc. shows in real time point
The parameter that the function of analysis can only be exported by hardware is completed.
The content of the invention
It is an object of the invention to provide a kind of electronic detecting device, to solve the problems, such as above-mentioned background technology in propose.
For achieving the above object, the present invention provides following technical scheme：
A kind of electronic detecting device, including fpga chip, display module, interface module, memory module, key-press module, report
Alert module, probe, wave filter and ultrasonic wave generation circuit, the fpga chip connects respectively display module, interface module, storage
Module, key-press module, alarm module, ultrasonic wave generation circuit, A/D modular converters and microprocessor, ultrasonic wave generation circuit is also
Connection probe, probe is also respectively connected with workpiece to be detected and ultrasonic wave receiving circuit, and ultrasonic wave receiving circuit is also passed sequentially through puts
Big circuit, clamp circuit, wave filter are connected to A/D modular converters；Ultrasonic wave receiving circuit includes amplifier U1, amplifier U2, amplifier
U3, resistance R1, LED, ultrasonic wave receive transducer RX, potentiometer RP1 and diode D1, described potentiometer RP1 one end connects respectively
Meet power supply VCC, resistance R2, resistance R11 and resistance R10, the potentiometer RP1 other ends connect respectively amplifier U1 pin 2, resistance R3 and
Potentiometer RP1 slide plates, the resistance R3 other ends connect LED negative poles, electric capacity C1, electric capacity C4, electric capacity C2, electric capacity C3, resistance R9 and surpass
Acoustic receiver transducer RX, LED positive poles connection resistance R1, the resistance R1 other ends connect respectively output end vo and amplifier U1 pin 1,
Amplifier U1 pin 3 connects respectively the resistance R2 other ends, the electric capacity C1 other ends and resistance R4, resistance R4 other ends connection diode D1
Positive pole, diode D1 negative poles connect respectively the resistance R11 other ends, resistance R5, the electric capacity C4 other ends and amplifier U2 pin 1, amplifier
U2 pins 2 connect respectively the resistance R5 other ends and resistance R6, and the resistance R6 other ends connection electric capacity C2 other ends, amplifier U2 is drawn
Pin 3 connects respectively amplifier U3 pin 1 and resistance R7, and the resistance R7 other ends connect respectively resistance R8 and amplifier U3 pin 2, resistance R8
The other end connects the electric capacity C3 other ends, and amplifier U3 pin 3 connects respectively the resistance R10 other ends, the resistance R9 other ends and ultrasonic wave
The receive transducer RX other end.
As further scheme of the invention：The microprocessor adopts AT89C51 single-chip microcomputers.
As further scheme of the invention：The wave filter adopts electromagnetic interface filter.
As further scheme of the invention：The probe is popped one's head in using piezoelectricity induction type.
As further scheme of the invention：The alarm module is sound and light alarm module.
As further scheme of the invention：The output end vo connects amplifying circuit.
Compared with prior art, the invention has the beneficial effects as follows：Electronic detecting device of the present invention is using structuring and module
The design of change, it is vdiverse in function, Real-time Collection and the transmission of data can be realized, while atomic weak ultrasonic signal can be absorbed,
So as to improve detection accuracy.
Description of the drawings
Fig. 1 is the schematic block circuit diagram of electronic detecting device.
Fig. 2 is the circuit diagram of ultrasonic wave receiving circuit in electronic detecting device.
Specific embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation is described, it is clear that described embodiment is only a part of embodiment of the invention, rather than the embodiment of whole.It is based on
Embodiment in the present invention, it is every other that those of ordinary skill in the art are obtained under the premise of creative work is not made
Embodiment, belongs to the scope of protection of the invention.
Fig. 1～2 are referred to, in the embodiment of the present invention, a kind of electronic detecting device, including fpga chip, display module, connect
Mouth mold block, memory module, key-press module, alarm module, probe, wave filter and ultrasonic wave generation circuit, the fpga chip point
Lian Jie not display module, interface module, memory module, key-press module, alarm module, ultrasonic wave generation circuit, A/D modular converters
And microprocessor, ultrasonic wave generation circuit be also connected with probe, probe be also respectively connected with workpiece to be detected and ultrasonic wave receiving circuit,
Ultrasonic wave receiving circuit also passes sequentially through amplifying circuit, clamp circuit, wave filter and is connected to A/D modular converters；Ultrasonic wave is received
Circuit includes amplifier U1, amplifier U2, amplifier U3, resistance R1, LED, ultrasonic wave receive transducer RX, potentiometer RP1 and diode
D1, described potentiometer RP1 one end connects respectively power supply VCC, resistance R2, resistance R11 and resistance R10, the potentiometer RP1 other ends point
Not Lian Jie amplifier U1 pin 2, resistance R3 and potentiometer RP1 slide plates, the resistance R3 other ends connection LED negative poles, electric capacity C1, electric capacity
C4, electric capacity C2, electric capacity C3, resistance R9 and ultrasonic wave receive transducer RX, LED positive poles connection resistance R1, the resistance R1 other ends point
Not Lian Jie output end vo and amplifier U1 pin 1, amplifier U1 pin 3 connects respectively the resistance R2 other ends, the electric capacity C1 other ends and electricity
Resistance R4, resistance R4 other ends connection diode D1 positive poles, diode D1 negative poles connect respectively the resistance R11 other ends, resistance R5, electricity
Hold the C4 other ends and amplifier U2 pin 1, amplifier U2 pin 2 connects respectively the resistance R5 other ends and resistance R6, the resistance R6 other ends
The connection electric capacity C2 other ends, the amplifier U2 pin 3 connects respectively amplifier U3 pin 1 and resistance R7, resistance R7 other ends difference
Connection resistance R8 and amplifier U3 pin 2, the resistance R8 other ends connection electric capacity C3 other ends, amplifier U3 pin 3 connects respectively resistance
The R10 other ends, the resistance R9 other ends and the ultrasonic wave receive transducer RX other end.The microprocessor adopts AT89C51 monolithics
Machine.The wave filter adopts electromagnetic interface filter.The probe is popped one's head in using piezoelectricity induction type.The alarm module is sound and light alarm
Module.
As further scheme of the invention：The output end vo connects amplifying circuit.
The present invention operation principle be：Fig. 1 is referred to, fpga chip to ultrasonic wave generation circuit, produces trigger
High-voltage pulse is sent to probe, and probe produces ultrasonic wave and starts flaw detection into workpiece to be detected, and ultrasonic wave is met in detection workpiece
Reflect to defect or surface of the work, back wave returns to probe (piezo-electric effect) and is converted into ultrasonic wave by workpiece to be detected
Electric signal enters ultrasonic wave receiving circuit, and electric signal is amplified, clamper, filtering, send into fpga chip after analog-to-digital conversion and enter one
Step data process, fpga chip extracts echo character value and draws waveform, and result is issued into microprocessor, microprocessor pair
Characteristic value data is sent back to after further processing, and is shown in display module, and fpga chip also undertakes keyboard scan, sound and light alarm, connects
The functions such as port communications.
Fig. 2 for ultrasonic wave receiving circuit circuit diagram, for reliable absorbtion Weak Ultrasonic ripple signal, receiving circuit it is preposition
Level constitutes two-stage high-gain amplifier by amplifier U1, UA2, and in advance to ultrasonic wave receive transducer RX1, the ultrasonic wave for being received is anti-
Penetrate signal and be amplified (80 times per stage gain), amplify output signal Jing after diode D1 detections, enter by electric capacity C1 and electricity
The filter circuit of resistance R4 compositions, bypasses environment instantaneous noise (clutter) and 40kHz ultrasonic basebands in supersonic region, only takes out
The negative level of reflected signal.The negative level delivers to the comparator inverting input being made up of amplifier U3, with positive terminal reference level
After relatively, positive pulse is exported, reflected signal that also will be less regular is shaped to very regular start pulse signal from input
Vo is exported, while LED is lighted, using the pulse, can trigger timer or monostable circuit, the broad pulse control needed for being converted into
Signal, goes to control corresponding automotive fittings (such as warning device).Here amplifier U1, U2, U3 adopt four high guaily unit LM324, not only
Price is low, performance is good；Open-loop gain height, bandwidth, bias current are little, and can single supply work.
It is obvious to a person skilled in the art that the invention is not restricted to the details of above-mentioned one exemplary embodiment, Er Qie
In the case of spirit or essential attributes without departing substantially from the present invention, the present invention can be in other specific forms realized.Therefore, no matter
From the point of view of which point, embodiment all should be regarded as exemplary, and be nonrestrictive, the scope of the present invention is by appended power
Profit is required rather than described above is limited, it is intended that all in the implication and scope of the equivalency of claim by falling
Change is included in the present invention.Any reference in claim should not be considered as and limit involved claim.
Moreover, it will be appreciated that although this specification is been described by according to embodiment, not each embodiment is only wrapped
Containing an independent technical scheme, this narrating mode of specification is only that for clarity those skilled in the art should
Using specification as an entirety, the technical scheme in each embodiment can also Jing it is appropriately combined, form those skilled in the art
Understandable other embodiment.
Claims (6)
1. a kind of electronic detecting device, including fpga chip, display module, interface module, memory module, key-press module, warning
Module, probe, wave filter and ultrasonic wave generation circuit, it is characterised in that the fpga chip connects respectively display module, interface
Module, memory module, key-press module, alarm module, ultrasonic wave generation circuit, A/D modular converters and microprocessor, ultrasonic wave is produced
Raw circuit is also connected with probe, and probe is also respectively connected with workpiece to be detected and ultrasonic wave receiving circuit, ultrasonic wave receiving circuit also according to
It is secondary that A/D modular converters are connected to by amplifying circuit, clamp circuit, wave filter；Ultrasonic wave receiving circuit includes amplifier U1, amplifier
U2, amplifier U3, resistance R1, LED, ultrasonic wave receive transducer RX, potentiometer RP1 and diode D1, described potentiometer RP1 one end
Connect power supply VCC, resistance R2, resistance R11 and resistance R10 respectively, the potentiometer RP1 other ends connect respectively amplifier U1 pin 2, electricity
Resistance R3 and potentiometer RP1 slide plates, resistance R3 other ends connection LED negative poles, electric capacity C1, electric capacity C4, electric capacity C2, electric capacity C3, resistance
R9 and ultrasonic wave receive transducer RX, LED positive poles connection resistance R1, the resistance R1 other ends connect respectively output end vo and amplifier U1
Pin 1, amplifier U1 pin 3 connects respectively the resistance R2 other ends, the electric capacity C1 other ends and resistance R4, resistance R4 other ends connection two
Pole pipe D1 positive pole, diode D1 negative poles connect respectively the resistance R11 other ends, resistance R5, the electric capacity C4 other ends and amplifier U2 pin
1, amplifier U2 pin 2 connects respectively the resistance R5 other ends and resistance R6, the resistance R6 other ends connection electric capacity C2 other ends, the fortune
Put U2 pins 3 and connect amplifier U3 pin 1 and resistance R7 respectively, the resistance R7 other ends connect respectively resistance R8 and amplifier U3 pin 2,
The resistance R8 other ends connect the electric capacity C3 other ends, amplifier U3 pin 3 connect respectively the resistance R10 other ends, the resistance R9 other ends and
The ultrasonic wave receive transducer RX other end.
2. electronic detecting device according to claim 1, it is characterised in that the microprocessor adopts AT89C51 monolithics
Machine.
3. electronic detecting device according to claim 1, it is characterised in that the wave filter adopts electromagnetic interface filter.
4. electronic detecting device according to claim 1, it is characterised in that the probe is popped one's head in using piezoelectricity induction type.
5. electronic detecting device according to claim 1, it is characterised in that the alarm module is sound and light alarm module.
6. electronic detecting device according to claim 1, it is characterised in that the output end vo connects amplifying circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611262860.8A CN106645410A (en) | 2016-12-30 | 2016-12-30 | Electronic detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611262860.8A CN106645410A (en) | 2016-12-30 | 2016-12-30 | Electronic detection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106645410A true CN106645410A (en) | 2017-05-10 |
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ID=58838250
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611262860.8A Pending CN106645410A (en) | 2016-12-30 | 2016-12-30 | Electronic detection device |
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| Country | Link |
|---|---|
| CN (1) | CN106645410A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107402256A (en) * | 2017-08-22 | 2017-11-28 | 姚静洁 | A kind of ultrasonic flaw detector |
| CN108717081A (en) * | 2018-08-14 | 2018-10-30 | 河北工业大学 | Portable electromagnetic ultrasonic signal digital processing reception device based on FPGA and method |
| CN109142520A (en) * | 2018-07-06 | 2019-01-04 | 新兴铸管股份有限公司 | A kind of ultrasonic detection device |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204515126U (en) * | 2015-04-14 | 2015-07-29 | 张陈丽 | A kind of ultrasound wave receiving circuit |
| CN105223273A (en) * | 2015-10-09 | 2016-01-06 | 清华大学 | A kind of motor train unit crackle detecting instrument |
| CN205353014U (en) * | 2016-01-31 | 2016-06-29 | 吴白水 | Ultrasonic wave work piece detecting system |
-
2016
- 2016-12-30 CN CN201611262860.8A patent/CN106645410A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204515126U (en) * | 2015-04-14 | 2015-07-29 | 张陈丽 | A kind of ultrasound wave receiving circuit |
| CN105223273A (en) * | 2015-10-09 | 2016-01-06 | 清华大学 | A kind of motor train unit crackle detecting instrument |
| CN205353014U (en) * | 2016-01-31 | 2016-06-29 | 吴白水 | Ultrasonic wave work piece detecting system |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107402256A (en) * | 2017-08-22 | 2017-11-28 | 姚静洁 | A kind of ultrasonic flaw detector |
| CN109142520A (en) * | 2018-07-06 | 2019-01-04 | 新兴铸管股份有限公司 | A kind of ultrasonic detection device |
| CN109142520B (en) * | 2018-07-06 | 2024-02-09 | 新兴铸管股份有限公司 | Ultrasonic detection device |
| CN108717081A (en) * | 2018-08-14 | 2018-10-30 | 河北工业大学 | Portable electromagnetic ultrasonic signal digital processing reception device based on FPGA and method |
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Application publication date: 20170510 |