CN107941920A - A kind of supersonic detector of immersion type shielding electromagnetism - Google Patents
A kind of supersonic detector of immersion type shielding electromagnetism Download PDFInfo
- Publication number
- CN107941920A CN107941920A CN201711046373.2A CN201711046373A CN107941920A CN 107941920 A CN107941920 A CN 107941920A CN 201711046373 A CN201711046373 A CN 201711046373A CN 107941920 A CN107941920 A CN 107941920A
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- China
- Prior art keywords
- shielding
- supersonic detector
- immersion type
- equipment
- electromagnetism
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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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
Abstract
The present invention relates to a kind of supersonic detector of immersion type shielding electromagnetism, including ultrasonic probe, electromagnetic shielding equipment, supersonic detector, signal cable, the supersonic detector is equipped with acoustic interface, the signal cable front end is connected with the ultrasonic probe, rear end is connected with the acoustic interface, and the electromagnetic shielding equipment is covered in the signal cable surface.It the advantage is that, effectively reduce ultrasonic signal noise jamming suffered in cable transmission；In the case of smaller ultrasonic wave gain, the good shield effectiveness of comparison can be reached；It is easy to operate, grasped easy to technical staff；Equipment install convenient is electromagnetically shielded, is conveniently replaceable, reduces consumptive material price.
Description
Technical field
The present invention relates to electromangnetic spectrum field, more particularly to a kind of supersonic detector of immersion type shielding electromagnetism.
Background technology
Non-Destructive Testing is the important detection method in carrying out flaw detection, and wherein ultrasonic examination is one kind weight in Non-Destructive Testing
Want detection method.Ultrasonic examination is that the echo of different height occurs when entering the dielectric layer of the different velocities of sound using ultrasonic wave
It whether there is defect to judge to detect workpiece surface and inside.With higher flaw detection sensitivity, the cycle is short, cost is low, efficiency
The advantages that high.
Based on ultrasonic examination principle, different flaw detection operating methods and corresponding defect-detecting equipment are derived, wherein relatively more normal
The ultrasonic flaw detecting device seen is immersion type fully-automatic supersonic defectoscope.Its working method is that ultrasonic probe is immersed water
In, carry out material flaw detection using water as couplant.When it is detected a flaw, probe is placed in above workpiece, passes through the phase popped one's head in workpiece
To movement, so as to be detected to workpiece with the presence or absence of defect.
Core of the ultrasonic wave as immersion type ultrasonic examination, staff judge workpiece by judging its waveform
With the presence or absence of defect.In actual use, ultrasonic wave is produced by piezoelectric chip, its back wave is turned by piezoelectric chip again after transmitting
Electric signal is turned to, and passes through cable transmission to processing equipment.Since immersion type supersonic detector would generally utilize motor to control
Scanning process, motor can produce electromagnetic wave in operation, and influence by way of radiation the ultrasonic wave telecommunications transmitted in cable
Number, the flaw detection waveform for causing to finally obtain produces clutter (noise), or makes flaw detection wave distortion.
To solve the above-mentioned problems, existing equipment is mostly good ground connection and using by way of strip line
To reduce electromagnetic interference.However, in actual use, electromagnetic radiation still can produce interference to ultrasonic electrical signal.
Therefore, there is an urgent need for one kind can effectively reduce electromagnetic interference, reduce the immersion type shielding electromagnetism of ultrasonic wave waveform clutter
Supersonic detector, and at present on this immersion type shielding electromagnetism supersonic detector have not been reported.
The content of the invention
The purpose of the present invention is for deficiency of the prior art, there is provided a kind of ultrasonic examination of immersion type shielding electromagnetism
Instrument.
To achieve the above object, the present invention adopts the technical scheme that：
A kind of supersonic detector of immersion type shielding electromagnetism, including ultrasonic probe, electromagnetic shielding equipment, ultrasonic wave are visited
Hinder instrument, signal cable；
The supersonic detector is equipped with acoustic interface；
The signal cable front end is connected with the ultrasonic probe, and rear end is connected with the acoustic interface；
The electromagnetic shielding equipment is covered in the signal cable surface.
Preferably, the electromagnetic shielding equipment is shielding line.
Preferably, the electromagnetic shielding equipment is shielding line net cover.
Preferably, the electromagnetic shielding equipment coverage mode covers for wound form.
Preferably, the electromagnetic shielding equipment coverage mode covers for nested type.
Preferably, the shielding line is leaded silver-plated high density copper wire.
Preferably, the shielding gauze is leaded silver-plated high-density copper knitmesh line set.
Preferably, the electromagnetic shielding equipment can be in probe distal end and exposed portion of the rear end to ultrasonic wave cable of popping one's head in
Carry out conducting connection.
The present invention uses above technical scheme, compared with prior art, has the following technical effect that：
The supersonic detector of a kind of immersion type shielding electromagnetism of the present invention, by covering electromagnetic screen on signal cable surface
Equipment is covered, effectively reduces ultrasonic signal noise jamming suffered in cable transmission；In the situation of smaller ultrasonic wave gain
Under, the good shield effectiveness of comparison can be reached；It is easy to operate, grasped easy to technical staff；Equipment install convenient is electromagnetically shielded,
It is conveniently replaceable, reduces consumptive material price.
Brief description of the drawings
Fig. 1 is the application schematic diagram of the present invention.
Fig. 2 is the preferred embodiment of the present invention.
Fig. 3 is another preferred embodiment of the present invention.
Fig. 4 is using ultrasonic examination waveform control schematic diagram before and after the present invention.
Embodiment
Below in conjunction with the attached drawing in the embodiment of the present invention, the technical solution in the embodiment of the present invention is carried out clear, complete
Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art obtained on the premise of creative work is not made it is all its
His embodiment, belongs to the scope of protection of the invention.
It should be noted that in the case where there is no conflict, the feature in embodiment and embodiment in the present invention can phase
Mutually combination.
The invention will be further described with specific embodiment below in conjunction with the accompanying drawings, but not as limiting to the invention.
A kind of supersonic detector of immersion type shielding electromagnetism, including ultrasonic probe 1, electromagnetic shielding equipment 2, ultrasonic wave
Defectoscope 3, signal cable 4, the supersonic detector 3 are equipped with acoustic interface 31,4 front end of signal cable and the ultrasound
1 connection of ripple probe, rear end are connected with the acoustic interface 31, and the electromagnetic shielding equipment 2 is covered in 4 table of signal cable
Face.
As shown in Figure 1, using the present invention immersion type shielding electromagnetism supersonic detector, its 4 surface of cable covered with
Equipment 2 is electromagnetically shielded, 2 front and back end of electromagnetic shielding equipment is carried out with ultrasonic probe 1, supersonic detector acoustic interface 31 respectively
Contact.Electromagnetic wave can be shielded when in use, being electromagnetically shielded equipment 2, reduce interference of the electromagnetic wave to sound wave.
In embodiment, since the front-end and back-end of ultrasonic probe are possible to the exposed situation of signal cable occur,
Therefore needing to connect it influences it with reducing electromagnetic radiation.Utilize the electromagnetic shielding line for being electromagnetically shielded 2 front end of equipment
The 1 front end signal cable exposed with 1 rear end of probe that will pop one's head in is connected, so that the electromagnetic radiation occurred when reducing carrying out flaw detection
Influence.
The preferred embodiment of the present invention, as shown in Fig. 2, the electromagnetic shielding equipment 2 is shielding line, the shielding line
For leaded silver-plated high density copper wire, technical staff is wrapped in 4 surface of signal cable using leaded silver-plated high density copper wire, and will contain
The silver-plated high-density copper line front end of lead is attached with ultrasonic probe 1, and leaded silver-plated high-density copper line back end and ultrasonic wave are visited
The acoustic interface 31 for hindering instrument 3 is attached；When being wound, gap can be left between shielding line and shielding line so that signal
Cable part exposes；It can also be left no gaps between shielding line and shielding line so that the complete shielded wire covering of signal cable.
Another preferred embodiment of the present invention, as shown in figure 3, the electromagnetic shielding equipment 2 is shielding gauze, the screen
It is leaded silver-plated high-density copper knitmesh line set to cover gauze, and leaded silver-plated high-density copper knitmesh line set is nested in signal by technical staff
4 outer surface of cable, and leaded silver-plated high-density copper knitmesh line set front end is attached with ultrasonic probe 1, will be leaded silver-plated
High-density copper knitmesh line is covered to be attached with the acoustic interface 31 of supersonic detector 3.
The electromagnetic shielding method of the present invention is subjected to practical application, after being assembled according to step, proceeds by ultrasonic wave
Flaw detection.As shown in Fig. 4 (right side), when not using electromagnetic shielding, ultrasonic echo wave noise (arrow is signified) is larger；Such as Fig. 4
Shown in (left side), after electromagnetic shielding, ultrasonic echo wave noise (arrow is signified) is obviously reduced.By test of many times,
In the case of ultrasonic wave gain 45DB, the effect of effectively reduction 20% can be reached.
The foregoing is merely preferred embodiments of the present invention, not thereby limit embodiments of the present invention and protection model
Enclose, to those skilled in the art, should can appreciate that all with made by description of the invention and diagramatic content
Equivalent substitution and obviously change obtained scheme, should be included in protection scope of the present invention.
Claims (8)
1. a kind of supersonic detector of immersion type shielding electromagnetism, it is characterised in that set including ultrasonic probe, electromagnetic shielding
Standby, supersonic detector, signal cable；
The supersonic detector is equipped with acoustic interface；
The signal cable front end is connected with the ultrasonic probe, and rear end is connected with the acoustic interface；
The electromagnetic shielding equipment is covered in the signal cable surface.
2. the supersonic detector of immersion type shielding electromagnetism according to claim 1, it is characterised in that the electromagnetic shielding
Equipment is shielding line.
3. the supersonic detector of immersion type shielding electromagnetism according to claim 1, it is characterised in that the electromagnetic shielding
Equipment is shielding line net cover.
4. the supersonic detector of immersion type shielding electromagnetism according to claim 2, it is characterised in that the electromagnetic shielding
Equipment coverage mode covers for wound form.
5. the supersonic detector of immersion type shielding electromagnetism according to claim 3, it is characterised in that the electromagnetic shielding
Equipment coverage mode covers for nested type.
6. the supersonic detector of immersion type according to claim 4 shielding electromagnetism, it is characterised in that the shielding line is
Leaded silver-plated high density copper wire.
7. the supersonic detector of immersion type shielding electromagnetism according to claim 5, it is characterised in that the shielding gauze
For leaded silver-plated high-density copper knitmesh line set.
8. according to the supersonic detector of any immersion type shielding electromagnetism of claim 1-7, it is characterised in that the electricity
Magnetic shield apparatus carries out conducting to the exposed portion of ultrasonic wave cable with probe rear end in probe distal end and connects.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711046373.2A CN107941920A (en) | 2017-10-31 | 2017-10-31 | A kind of supersonic detector of immersion type shielding electromagnetism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711046373.2A CN107941920A (en) | 2017-10-31 | 2017-10-31 | A kind of supersonic detector of immersion type shielding electromagnetism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107941920A true CN107941920A (en) | 2018-04-20 |
Family
ID=61936019
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711046373.2A Pending CN107941920A (en) | 2017-10-31 | 2017-10-31 | A kind of supersonic detector of immersion type shielding electromagnetism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107941920A (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1251977A (en) * | 1997-07-02 | 2000-05-03 | 株式会社日本M·D·M | Apparatus for biological tissue treatment utilizing high frequency |
| CN102288682A (en) * | 2011-05-12 | 2011-12-21 | 斯肯威（上海）工业检测科技有限公司 | Device for eliminating motor electromagnetic interference influence of ultrasonic detection robot |
-
2017
- 2017-10-31 CN CN201711046373.2A patent/CN107941920A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1251977A (en) * | 1997-07-02 | 2000-05-03 | 株式会社日本M·D·M | Apparatus for biological tissue treatment utilizing high frequency |
| CN102288682A (en) * | 2011-05-12 | 2011-12-21 | 斯肯威（上海）工业检测科技有限公司 | Device for eliminating motor electromagnetic interference influence of ultrasonic detection robot |
Non-Patent Citations (2)
| Title |
|---|
| 丁兰芳: "《飞航导弹电气系统设计》", 31 August 2009, 中国宇航出版社 * |
| 员有名 刘宗达: "《电影放映技术辞典》", 28 February 1987, 湖北辞书出版社 * |
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| PB01 | Publication | ||
| PB01 | Publication | ||
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| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180420 |