CN106468786A - A kind of Novel underground metal pipeline detector - Google Patents
A kind of Novel underground metal pipeline detector Download PDFInfo
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- CN106468786A CN106468786A CN201510515704.7A CN201510515704A CN106468786A CN 106468786 A CN106468786 A CN 106468786A CN 201510515704 A CN201510515704 A CN 201510515704A CN 106468786 A CN106468786 A CN 106468786A
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- sensor assembly
- expansion link
- coil
- metal pipeline
- magnetic field
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- 239000002184 metal Substances 0.000 title claims abstract description 9
- 239000000203 mixture Substances 0.000 claims 1
- 238000001514 detection method Methods 0.000 abstract description 7
- 230000007257 malfunction Effects 0.000 abstract 1
- 238000005259 measurement Methods 0.000 description 4
- 230000006698 induction Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
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Abstract
The present invention is intended to provide a kind of device of quick detection underground metal pipeline fault, this device adopts expansion link 5, expansion link 6, expansion link 7 as the connection between sensor assembly and signal processing module, employ sensor assembly 1 simultaneously, sensor assembly 2, sensor assembly 3 measures the magnetic field of three points respectively, expansion link 5 is parallel to each other with expansion link 6, and expansion link 7 is mutually perpendicular to expansion link 5 expansion link 6, such as Fig. 1.Sensor assembly all employs orthogonal three identical coils, by measuring the size that the electromotive force of three coils measures the magnetic field of present position.Very easily measure position and the malfunction of underground metal pipeline by the size measuring the magnetic field of these three points.
Description
Art：
The present invention is a kind of device of detection underground metal pipeline it is adaptable to instrument field.
Background technology
Pipe and cable detector is mainly a kind of whether intact instrument of measurement metal class underground utilities.Cardinal principle is
The electromagnetic signal of one characteristic frequency is sensed or is connected directly on underground utilities, make underground utilities radiated electromagnetic wave.
The electromagnetic wave passing through to send on the ground in test line may determine that the fault of underground utilities.Measurement alternation electricity
Through the measurement frequently with crest pattern and trough pattern during magnetic wave.The data that crest pattern records is exactly that magnetic field passes
The data that sensor (coil section) is recorded when parallel with magnetic direction, the data that trough pattern records is exactly
The data recording in the case that magnetic field sensor (coil section) is vertical with magnetic direction, will in measurement
The data recording using crest pattern is asked to be maximum, will meet the data using trough pattern records is simultaneously
Zero some surface for underground utilities, if the electromagnetic wave signal detecting diminishes suddenly, thinks that pipeline has
Breakpoint.Detection speed is slower in this way for profit.
Content of the invention
The purpose of the present invention is, the shortcoming overcoming prior art, provides a kind of sensor assembly telescopic three
Point type detecting instrument.
The purpose of the present invention to be realized by technical scheme below：
A kind of novel pipeline survey meter it include launching electromagnetism wave apparatus 8 and receive electromagnetism wave apparatus, receive
Electromagnetism wave apparatus include sensor assembly 1, sensor assembly 2, sensor assembly 3, signal processing module
4, expansion link 5 between sensor assembly 1 and signal processing module 4, at sensor assembly 2 and signal
Expansion link 6 between reason module 4, expansion link 7 between sensor assembly 3 and signal processing module 4.Stretch
Contracting bar 5 is parallel to each other with expansion link 6, and expansion link 7 is mutually perpendicular to expansion link 5 expansion link 6.Sensing
Device module 1, sensor assembly 2, sensor assembly 3 by orthogonal three identical coils 14,
Coil 15, coil 16 are constituted.Sensor assembly 1, sensor assembly 2, sensor assembly 3 coil
14th, coil 15, coil 16 P with the interface circuit of signal processing module 4 respectively0、P2、P4In 4,
5th, 6 mouthfuls are connected, such as Fig. 3.
Beneficial effects of the present invention：Due to detection buried pipe can be increased substantially using three sensor assemblies
The speed of line.
Advantages of the present invention is embodied in：
(1) significantly reduce due to employing telescopic drawbar structure equipment volume.
(2) because this sensor assembly employs the identical coil of vertical three, can be accurate by three coils
The magnetic field size of description test point.
(3) detection efficiency is high.
Brief description
The structural representation of Fig. 1 novel pipeline survey meter.
Sensor assembly internal structure schematic diagram in Fig. 2 Fig. 1.
Fig. 3 signal processing module interface schema.
Fig. 4 novel pipeline survey meter transmitting electromagnetism wave apparatus and pipeline connection figure.
Fig. 5 novel pipeline survey meter receives electromagnetism wave apparatus detection principle figure.
Detection principle figure when Fig. 6 novel pipeline survey meter reception electromagnetism wave apparatus are directly over pipeline.
Fig. 7 novel pipeline survey meter measures depth of underground pipelines schematic diagram.
Below with drawings and Examples, the invention will be further described.
Sensor assembly 1, sensor assembly 2, sensor assembly 3 are by identical orthogonal line
Circle 14, coil 15, coil 16 are constituted, such as Fig. 2.If sensor assembly is in the magnetic field of alternation, that is,
B=BmSin ω t, can push awayWherein B is alternating magnetic field size, BmFor alternation
The maximum in magnetic field, ω is angular frequency, and N is the number of turn of coil, and S is the average traversal area of coil, ε1For
The induction electromotive force that coil 14 produces, ε2The induction electromotive force producing for coil 15, ε3Produce for coil 16
Induction electromotive force.Explanation can be measured by the electromotive force that coil 14, coil 15, coil 16 produce
The size of magnetic field intensity.
Electromagnetism wave apparatus 8 output lead 12 and earth lead 13 are launched by Fig. 4 novel pipeline survey meter, connects respectively
Enter pipeline 9 and insertion ground surface 11, then novel pipeline survey meter transmitting electromagnetism wave apparatus 8 transmitting 31KHz
Electromagnetic wave electromagnetic wave signal is injected in underground utilities.Underground utilities 9 will outside radiated electromagnetic wave 10,
Also electromagnetic wave signal can be received in ground surface more than 11.Hand-held novel pipeline survey meter receives electromagnetism wave apparatus and makes
Expansion link 5, expansion link 6, expansion link 7, parallel to ground surface 11, find sensor assembly 1 and sensor die
The position of the magnetic field intensity signal difference maximum that block 2 receives, such as Fig. 5.Then hand-held novel pipeline survey meter connects
Receive electromagnetism wave apparatus to move right, move to the magnetic field intensity that sensor assembly 1 is received with sensor assembly 2
Signal difference is the maximum some position for underground utilities 9 of zero signal that sensor assembly 3 receives simultaneously
Surface, such as Fig. 6 is the top view of this position.Novel pipeline survey meter on this aspect detecting
Receive electromagnetism wave apparatus to erect, sensor assembly 1 contacts ground surface 11, and expansion link 5 expansion link 6 hangs down
Straight in ground surface 11, expansion link 7 parallel to ground surface 11, such as Fig. 7.According to sensor assembly 1 and underground
The distance between pipeline 9, the distance between sensor assembly 2 and underground utilities 9, sensor assembly 1 He
The magnetic field intensity that sensor assembly 2 records can calculate the distance between underground utilities and ground surface.If new
Type pipe and cable detector reception electromagnetism wave apparatus move right in the case of the position of Fig. 6 and make sensor assembly 1
Identical with the magnetic field that sensor assembly 2 records, the magnetic field that sensor assembly 3 records is maximum, and New pipe is described
Line survey meter receives electromagnetism wave apparatus all the time in the surface of underground utilities 9, if sensor assembly 1, sensor
The magnetic field intensity that module 2, sensor assembly 3 record substantially diminishes simultaneously and the faulty point of underground utilities 9 is described.
Claims (3)
1. a kind of Novel underground metal pipeline detector it include launching electromagnetism wave apparatus 8 and receive electromagnetic wave dress
Put, receive electromagnetism wave apparatus and include sensor assembly 1, sensor assembly 2, sensor assembly 3, signal processing
Module 4, expansion link 5 between sensor assembly 1 and signal processing module 4, sensor assembly 2 and signal processing
Expansion link 6 between module 4, expansion link 7 between sensor assembly 3 and signal processing module 4.Sensor assembly 1,
Sensor assembly 2, sensor assembly 3 coil 14, coil 15, coil 16 respectively with signal processing module 4 phase
Connect.
2. a kind of Novel underground metal pipeline detector according to claim 1, is characterized in that：Flexible
Bar 5 is parallel to each other with expansion link 6, and expansion link 7 is mutually perpendicular to expansion link 5 expansion link 6.
3. a kind of Novel underground metal pipeline detector according to claim 1, is characterized in that：Sensor assembly
1st, sensor assembly 2, sensor assembly 3 are by orthogonal three identical coils 14, coil 15, coils
16 compositions.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510515704.7A CN106468786A (en) | 2015-08-21 | 2015-08-21 | A kind of Novel underground metal pipeline detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510515704.7A CN106468786A (en) | 2015-08-21 | 2015-08-21 | A kind of Novel underground metal pipeline detector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106468786A true CN106468786A (en) | 2017-03-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510515704.7A Pending CN106468786A (en) | 2015-08-21 | 2015-08-21 | A kind of Novel underground metal pipeline detector |
Country Status (1)
| Country | Link |
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| CN (1) | CN106468786A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018188355A1 (en) * | 2017-04-14 | 2018-10-18 | 中国矿业大学 | Underground magnetic-induction wireless communication device and method |
| CN109298019A (en) * | 2017-07-25 | 2019-02-01 | 中国石油天然气股份有限公司 | The credit rating of the underwater through section external anti-corrosion layer of pipeline determines method and device |
| CN112987112A (en) * | 2021-02-07 | 2021-06-18 | 国网福建省电力有限公司莆田供电公司 | Submarine cable searching and positioning method based on magnetic induction coil cross combination mode |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4072200A (en) * | 1976-05-12 | 1978-02-07 | Morris Fred J | Surveying of subterranean magnetic bodies from an adjacent off-vertical borehole |
| JP2000161904A (en) * | 1997-06-06 | 2000-06-16 | Kokusai Cable Ship Kk | Alternating-current magnetic sensor device |
| CN1662347A (en) * | 2002-05-09 | 2005-08-31 | 波音公司 | Magnetic indexer for high accuracy hole drilling |
| CN102621582A (en) * | 2012-03-27 | 2012-08-01 | 淄博威特电气有限公司 | Method for detecting positions of underground metal pipelines by aid of space vector method and device |
| CN205120982U (en) * | 2015-08-21 | 2016-03-30 | 徐睿英 | Novel underground metal pipeline detection instrument |
-
2015
- 2015-08-21 CN CN201510515704.7A patent/CN106468786A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4072200A (en) * | 1976-05-12 | 1978-02-07 | Morris Fred J | Surveying of subterranean magnetic bodies from an adjacent off-vertical borehole |
| JP2000161904A (en) * | 1997-06-06 | 2000-06-16 | Kokusai Cable Ship Kk | Alternating-current magnetic sensor device |
| CN1662347A (en) * | 2002-05-09 | 2005-08-31 | 波音公司 | Magnetic indexer for high accuracy hole drilling |
| CN102621582A (en) * | 2012-03-27 | 2012-08-01 | 淄博威特电气有限公司 | Method for detecting positions of underground metal pipelines by aid of space vector method and device |
| CN205120982U (en) * | 2015-08-21 | 2016-03-30 | 徐睿英 | Novel underground metal pipeline detection instrument |
Non-Patent Citations (1)
| Title |
|---|
| 靳世久 等: "地下金属管道深度和位置探测新方法", 《天津大学学报》, no. 05, pages 71 - 75 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018188355A1 (en) * | 2017-04-14 | 2018-10-18 | 中国矿业大学 | Underground magnetic-induction wireless communication device and method |
| CN109298019A (en) * | 2017-07-25 | 2019-02-01 | 中国石油天然气股份有限公司 | The credit rating of the underwater through section external anti-corrosion layer of pipeline determines method and device |
| CN112987112A (en) * | 2021-02-07 | 2021-06-18 | 国网福建省电力有限公司莆田供电公司 | Submarine cable searching and positioning method based on magnetic induction coil cross combination mode |
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Application publication date: 20170301 |